what will be the most likely change in ph when the h ions in the solution is increased to twice its original concentration

Answers

Answer 1

The most likely change in pH when the H+ ions in the solution is increased to twice its original concentration is from 9.5 to 6.5.

This is because the pH of a solution is a measure of the concentration of H+ ions in the solution, and if the concentration is doubled, the pH will decrease. This can be shown mathematically using the equation pH = -log[H+]. For example, if the original concentration of H+ ions is 10^-9.5 moles/liter, then the pH will be 9.5. If the concentration of H+ ions is doubled to 10^-9 moles/liter, then the pH will become 6.5 (-log[10^-9]).

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complete question:What will be the most likely change in pH when the H+ ions in the solution is increased to twice its original concentration?

5.0 to 2.5

4.0 to 2.0

1.6 to 1.3

9.5 to 6.5


Related Questions

if there is 5.0x10^-6 grams of As in 1200 grams of drinking water, what is the concentration of As in ppm?

Answers

The concentration in ppm is 5.0 ppm.

What is the ppm unit?

Ppm stands for "parts per million." It is a unit of measurement that is used to express the concentration of a substance in a mixture. In ppm, the amount of a substance is expressed as the number of parts of the substance per million parts of the mixture.

It is important to note that ppm is a relatively small unit of measurement, and that concentrations in the range of thousands or even millions of ppm can still be harmful to humans and the environment.

Given that the unit microgram/ gram is the same as the ppm then we have that the concentration could be 5.0μg/g or 5.0 ppm

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What volume of a 2.46 M
magnesium nitrate (Mg(NO3)2)
solution would be needed to make
275 mL of a 0.758 M solution by
dilution?
[?] mL of 2.46 M Mg(NO3)2

Answers

Converting the volumes to litres is not necessary. Any volume measurement is acceptable as long as it is utilized consistently on both sides.

What is the needed volume to make dilutions?

The following formula can be used to create a specific volume of a diluted solution from a stock solution. Where: V1 = Volume of stock solution required to make the new solution, C1V1 = C2V2. C1 is the stock solution's concentration. V2 is the new solution's final volume.

However, as was already said, you need to know the volume in litres if you're trying to figure out how many moles of solute are present.

Data retrieved from the query include the following:

C1 = 2.46 M

V1 =?

C2 = 0.758 M

V2 = 275 mL = 275/1000 = 0.275L

We can definitely determine the volume of the initial solution using the dilution formula C1V1 = C2V2.

C1V1 = C2V2

2.46 x V1 = 0.758 x 0.275

Divide both side by 2.46

V1 = (0.758 x 0.275) /2.46

V1 = 0.0847L

Therefore, 0.0847L volume of a 2.46 Magnesium nitrate (Mg(NO3)2)

solution would be needed to make 275 mL of a 0.758 M solution by

dilution

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which of the following molecules is a hydrocarbon?​

Answers

Option C. is a molecule of hydrocarbon.

What are molecules of hydrocarbon?

Hydrocarbons are organic compounds made up of only hydrogen and carbon atoms. They are the building blocks of organic chemistry and are the main component of fossil fuels such as coal, oil, and natural gas.

Molecules of hydrocarbons can be simple or complex, and can exist as gases, liquids, or solids. Some common examples of hydrocarbon molecules include methane (CH₄), ethane (C₂H₆), propane (C₃H₈), and butane (C₄H₁₀). Alkanes, alkenes, and alkynes are all types of hydrocarbons that have different chemical and physical properties based on the arrangement of their atoms.

Therefore, the correct answer is as given above. It could then be concluded that only option C is made up of hydrogen and carbon atoms.

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. what does this indicate about the temperature of the hydrogen gas as compared to the measured temperature of the beaker of water? would this error cause r to be overestimated, underestimated or remain unaffected? explain your reasoning.

Answers

If the temperature of the gas is underestimated, the value of the ideal gas constant (R) will be overestimated because R is inversely proportional to the temperature.

The ideal gas law describes the behavior of gases under certain conditions, assuming that they behave as an ideal gas. The equation relates the pressure, volume, temperature, and number of moles of a gas, and is written as PV = nRT, where P is the pressure of the gas, V is its volume, n is the number of moles of gas, T is the temperature, and R is the ideal gas constant.

The ideal gas constant, R, is a proportionality constant that relates the physical properties of the gas to its behavior as an ideal gas. The value of R depends on the units used for pressure, volume, and temperature, and it can be calculated using the equation R = PV/nT.

The value of R is inversely proportional to the temperature of the gas. This means that as the temperature of the gas decreases, the value of R increases, and vice versa. Therefore, if the temperature of the gas is underestimated, the calculated value of R will be higher than it should be. This can lead to errors in other variables that are calculated using the ideal gas law, such as the pressure, volume, or number of moles of gas.

It's important to note that the ideal gas law is only an approximation, and it may not accurately describe the behavior of real gases under all conditions. However, the ideal gas law is a useful tool for understanding the behavior of gases, and it can be used to make predictions about the behavior of gases in various situations, as long as the conditions are close enough to those of an ideal gas.

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A sample of what was thought to be gold was removed from a mine in San Francisco during the gold rush. After analysis, it was determined that it was actually fool's gold, or pyrite. The sample contained 17.6 grams of iron and 103 grams of sulfur. What is the percentage composition of each element in pyrite?

Answers

Answer:

14.594% Iron and 85.406% Sulfur

Explanation:

103g (S) + 17.6g (Fe) = 120.6g total mass

103/120.6 × 100 = 85.406% Sulfur

17.6/120.6 × 100 = 14.594% Iron

Using the data collected identify a trend in the solubility of the cations as you move down group 2 on the periodic table

Answers

Answer:ionic radius increases down the

Explanation:

what does she mean by this?

Answers

This means that the balance equation for the reaction of NH₄Cl (ammonium chloride) producing NH3 (ammonia) and HCl (hydrochloric acid) is: NH₄Cl (s) → NH₃ (g) + HCl (g).

How to write a balanced equation?

A balanced chemical equation is a representation of a chemical reaction that shows the same number of atoms of each element on both the reactant and product sides of the equation. To balance a chemical equation, the following steps can be followed:

Write the unbalanced equation, including the correct formulas for the reactants and products.Determine the number of atoms of each element on the reactant and product sides.If necessary, adjust the coefficients of the reactants and products to make the number of atoms of each element equal on both sides.Check the equation to make sure that it is balanced and that the coefficients are the smallest whole numbers possible.

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The balanced equation for the reaction is:

NH₄Cl(s) -> NH₃(g) + HCl(g)

How do I balance the chemical equation?

The law of conservation of matter which states that matter can neither be created nor destroyed during a chemical reaction but can be transferred from one form to another.

We can balance chemical equation by obeying the above law.

Now, we shall write the balance equation.

Ammonium chloride => NH₄ClAmmonia => NH₃Hydrogen chloride => HCl

Ammonium chloride -> Ammonia + Hydrogen chloride

NH₄Cl(s) -> NH₃(g) + HCl(g)

Reactant:

N = 1H = 4Cl = 1

Product:

N = 1H = 3 + 1 = 4Cl = 1

We can see that the atoms of the elements on both sides of the equation are equal, then the equation is balanced

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What would be the theoretical yield in moles for CO2 when there is 63.2 amount of moles of 02 present?
C+02->602

Answers

The theoretical yield of CO2 in moles when there is 63.2 moles of O2 present is 63.2 moles.

Describe Chemical Reaction?

A chemical reaction is a process in which one or more substances, called reactants, are converted into one or more different substances, called products. This process involves the breaking and forming of chemical bonds between atoms and/or molecules, resulting in a change in the chemical composition of the substances involved.

Chemical reactions can be classified into several different types based on the changes that occur during the reaction, including:

Synthesis or combination reactions: where two or more reactants combine to form a single product.

Decomposition reactions: where a single reactant breaks down into two or more products.

Single replacement or displacement reactions: where one element replaces another element in a compound, resulting in the formation of a new compound.

Double replacement or displacement reactions: where two compounds exchange ions or atoms to form two new compounds.

Acid-base reactions: where an acid and a base react to form a salt and water.

Assuming that the balanced chemical equation is:

C + O2 → CO2

We can see that the stoichiometric ratio between O2 and CO2 is 1:1. This means that for every 1 mole of O2 consumed, 1 mole of CO2 is produced. Therefore, if there are 63.2 moles of O2 present, the theoretical yield of CO2 would also be 63.2 moles.

So, the theoretical yield of CO2 in moles when there is 63.2 moles of O2 present is 63.2 moles.

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suppose we have two identical boxes of matter, a and b, that are in thermal contact but cannot exchange materials. they come to thermal equilibrium. system 1 consists of box a alone, while system 2 consists of both boxes a and b. what can you say about the entropy of the two systems?

Answers

The entropy of system 1, consisting of box A alone, will remain constant, while the entropy of system 2, consisting of both boxes A and B, will be greater due to the increase in the number of available microstates.

When two identical boxes of matter, A and B, are in thermal contact but cannot exchange materials, they will eventually come to thermal equilibrium. At thermal equilibrium, the two boxes will have the same temperature, and their individual entropies will be equal.

If we consider system 1, which consists of box A alone, its entropy will remain constant as it is an isolated system. However, if we consider system 2, which consists of both boxes A and B, the total entropy of the system will increase because there are now more ways for energy to be distributed between the two boxes. In other words, the addition of box B provides more microstates or configurations for the system to occupy, and hence the entropy of the combined system will be greater than that of system 1.

Therefore, we can say that the entropy of system 2, consisting of both boxes A and B, will be greater than the entropy of system 1, consisting of box A alone, as a result of the greater number of available microstates in system 2. This increase in entropy is a manifestation of the second law of thermodynamics, which states that the entropy of an isolated system will always tend to increase over time.

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6) based off of your understanding of atomic structure, which would have a larger radius, f or f-1? explain your answer.

Answers

F-1 would have a larger radius because it has one less electron than F, reducing the electrostatic attraction between the nucleus and electrons, making the atom larger.

The radius of an atom is determined by the distance between the nucleus and the outermost electron shell. The number of electrons in the outermost shell, or valence electrons, determines the size of the atom. In this case, F has 9 electrons in its outermost shell, while F-1 has 8 electrons. With one fewer electron, F-1 has less electrostatic attraction between the nucleus and electrons, and thus a larger radius.Valence electrons are the electrons in the outermost shell of an atom that participate in chemical reactions. The number of valence electrons an atom has determines its reactivity and how it will bond with other atoms

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1) Find the moles of each element in 1.25 mol of Na2CO3.
2) Convert 2.50 mol of Na2CO3 to mass in g.
3) Convert 5.50 g of Na2CO3 to mol.
4) Covert 5.50 g of Na2CO3 to number of particles.

Answers

In one mole of sodium carbonate, there are 2 moles of sodium , 6 moles of oxygen and 1 mole of C. Hence, in 1.25 moles of the compound, 2.5 moles of Na, 7.5 moles of O and 1.25 moles of C.

What is molar mass ?

The molar mass of a compound  is the mass of one mole of the compound. One mole of any compound contains 6.02 × 10²³ atoms. This number is called Avogadro number.

2.  Convert 2.50 mol of Na2CO3 to mass in g.

Molar mass of sodium carbonate  = 106 g/mol

then, mass of 2.50 mol = 265 g.

3. Convert 5.50 g of Na2CO3 to mol.

Number of moles in 5.50 g of sodium carbonate = 5.50 g/ 106 = 0.051 moles.

4.Covert 5.50 g of Na2CO3 to number of particles

Now, one mole of sodium carbonate contains Avogadro number of atoms or molecules . Then number of particles in 5.50 g that is 0.051 moles is:

0.051 × 6.022 × 10²³ = 3.072 × 10²² particles.

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The graph above shows the dramatic decline in monarch butterfly populations since 1995. The population of this butterfly has dropped nearly 90% in a 20 year span. All of the explantations below are true of the monarch butterfly population. Which explanation is NOT due to resource availability?
Responses


A Nectar plants that monarch butterflies feed on during their migration have dwindling populations die to interspecies competition and weather related issues.


B Pesticide use has drastically declined the population of the milkweed plant, the monarch caterpillar's only food source.


C Increased numbers of assasian bugs which prey upon monarch caterpillars have been discovered.


D Loss of habitat and breeding grounds of the monarch butterfly due to development.

Answers

Loss of habitat and breeding grounds of the monarch butterfly due to development is the option that is not due to resource availability.

What is interspecies competition ?

Interspecies competition refers to a form of competition between different species that are competing for the same limited resources such as food, water, shelter or other necessities required for their survival and reproduction. This competition can occur among individuals of the same species (intraspecific competition) or different species (interspecific competition). In the context of ecology, interspecies competition can be an important factor influencing the distribution and abundance of species in an ecosystem.

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what is the number of atoms in a volume of 4.48 L of He gas STP?

a) 6.02 x 10^23
b) 3.02 x 10^23
c) 1.34 x 10^25
d) 1.20 x 10^23

Answers

Avogadro's number can be multiplied by the number of moles to determine the number of atoms in 4.48 L of He gas at STP is  1.20 x 10²³ atoms.

Option D is correct.

Evaluating :

                       N = N × n

                = 6.02 x 10²³ × 0.200 mol

                            = 1.20 x 10²³ atoms.

Therefore, the answer is 1.20 x 10²³ atoms.

What number does Avogadro have?

In physics and chemistry, Avogadro's number is a fundamental constant that indicates the number of atoms, ions, or molecules in one mole of a substance. It is exactly 6.02214076 x 10²³ particles per mole, as defined.

STP: What is it?

Standard Temperature and Pressure is spelled STP. For the purpose of measuring the physical properties of gases, STP is utilized as a reference condition. It has a temperature of 0° Celsius and a pressure of one atmosphere.

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Imagine it's a cold winter night; you've turned the heater on to get toasty and warm. You open the door for a moment and someone yells to close it and says "you're letting the cold in!" Is this statement true or false? i need a paragraph explaining why and evidence.

Answers

The statement "you're letting the cold in" is technically false. When you open a door on a cold winter night, you are allowing the warm air inside to escape, which can cause a drop in temperature. However, you are not necessarily "letting the cold in." The cold air is already present outside, and it will continue to exist whether the door is open or closed. In fact, the temperature inside your home may only change slightly, and it will depend on many factors such as the size of the room, the amount of insulation, and the efficiency of the heating system.

The concept of heat transfer, which is the movement of heat from one place to another, helps explain why this statement is false. When you open the door, the warm air inside will move to the cold air outside, which is known as conduction. This transfer of heat will cause the temperature inside to drop until the heat source can warm up the air again. This process will continue as long as the door remains open. So, while opening the door on a cold winter night can cause a drop in temperature, it is not because you are "letting the cold in." Instead, it is because you are allowing the warm air inside to escape.

How many moles of Ana are in 42 grams of Na

Answers

Answer:

1.83 moles

Explanation:

The question is: how many moles of "Na" are in 42 g of Na, right?

1 mole of Na = 23 g

so # mole = (1 mole / 23 g) x 42g = 1.82 moles

A solution of ammonium phosphate is mixed with a solution of aluminum nitrate. If aluminum phosphate is insoluble in water, what is the reaction? Also remember this will need to be balanced.

Answers

The balanced chemical reaction is given as follows:

(NH₄)₃PO₄ (aq) + AI(NO₃)₃ (aq) → AIPO₄ (s) + 3NH₄NO₃ (aq)

What is balanced chemical reaction ?

A balanced chemical equation is one that has the same number of atoms of each type in the reaction on both the reactant and product sides. In a balanced chemical equation, both the mass and the change are equal.

The law of conservation of mass, which states that "the total mass of all the products of reaction in a chemical reaction equals the total mass of all the reactants," is satisfied by balancing chemical equations.

Thus, A solution of ammonium phosphate is mixed with a solution of aluminum nitrate. If aluminum phosphate is insoluble in water, its reaction is  (NH₄)₃PO₄ (aq) + AI(NO₃)₃ (aq) → AIPO₄ (s) + 3NH₄NO₃ (aq).

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what kind of bonds are responsible for the unique cohesion, surface tension, and adhesion properties of water molecules?

Answers

The unique cohesion, surface tension, and adhesion properties of water molecules are primarily due to the hydrogen bonds between the molecules.

Rank these elements from largest to smallest atomic radius Neon, Lithium, potassium, radon, helium, nitrogen, Praseodymium, aluminum

Answers

From largest to smallest atomic radius:

Francium>Cesium>Rubidium>Potassium>Sodium>Lithium>Calcium> Strontium>Barium>Aluminum>Praseodymium>Neon>Helium>Argon> Krypton>Xenon>Radon>Nitrogen.

What is the trend of atomic radii in a period?

The trend of atomic radii in a period (horizontal row) of the periodic table is generally a decrease from left to right. This is due to an increase in the effective nuclear charge, which is the positive charge felt by the outermost electrons in the atom. As the atomic number increases across a period, the number of protons in the nucleus increases, which increases the effective nuclear charge. This stronger attraction between the positively charged nucleus and the negatively charged electrons causes the atomic radius to decrease.

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75 m is equivalent to a. 75 moles per liter. b. 7.5 moles per liter. c. 750 moles per liter. d. 75 moles per milliliter. e. 7.5 moles per milliliter.

Answers

None of the aforementioned choices are appropriate since moles per litre (mol/L) and moles per millilitre (mol/mL) are measures of concentration while metres (m) is a unit of length or distance.

The unit of concentration known as moles per litre (mol/L or M) is frequently used in chemistry. It expresses the quantity of a substance in moles that has dissolved in a litre of solution. The concentration of chemical solutions, including acids, bases, salts, and organic molecules, is frequently described using this unit. Because it offers a means of standardising a solution's concentration, the idea of moles per litre is crucial for enabling precise and repeatable measurements of reactants and products in chemical processes. By dividing the number of moles of solute by the volume of the solution in litres, one can determine the molar concentration of a solution.

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a titration is performed as follows: 6.685 ml of fe2 solution of unknown concentration is charged into a 100 ml beaker 45 ml of deionized water is added the solution is titrated with 0.962 m ce4 solution the equivalence point is reached after 24.995 ml of ce4 solution is added what is the concentration of the fe2 solution? report your response to three digits after the decimal.

Answers

To determine the concentration of the Fe2+ solution, we can use the following equation for the reaction between Fe2+ and Ce4+ ions:[tex]Fe2+ + Ce4+ → Fe3+ + Ce3+[/tex]

We know the volume and molarity of the Ce4+ solution (0.962 M), and the volume of Ce4+ solution required to reach the equivalence point (24.995 mL). The volume of Ce4+ solution can be used to find the number of moles of Ce4+ ions present in the solution.

First, convert the volume of Ce4+ solution to liters:

[tex]24.995 mL * (1 L / 1000 mL) = 0.024995 L[/tex]

Next, use the molarity and volume to find the number of moles of Ce4+ ions:

[tex]0.962 M * 0.024995 L = 0.023724 moles of Ce4+[/tex]

Since the equivalence point is reached, the number of moles of Ce4+ ions added is equal to the number of moles of Fe2+ ions in the original solution. We can now use this information to find the concentration of the Fe2+ solution.

First, we need to determine the total volume of the Fe2+ solution and water mixture.

Volume of Fe2+ solution = 6.685 mL

Volume of water = 45 mL

Total volume = 6.685 mL + 45 mL = 51.685 mL = 0.051685 L

Next, use the number of moles of Fe2+ ions and the total volume to find the concentration:

[tex]0.023724 moles / 0.051685 L = 0.462 M[/tex]

So, the concentration of the Fe2+ solution is 0.462 M.

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Please help will give brainliest!

Answers

The concentration of the compound at 50.9°C is 0.098 g/mL.

What is concentration?

Concentration is the act of focusing one's attention on a specific task or activity. It is the ability to focus on one thing at a time, while blocking out distractions. It is a skill that can be developed over time and with practice. Concentration is important in many areas of life, including studying, work, and sports. It is also a key factor in achieving success in any endeavor.

At 50.9°C, the mass of the boat + solution was 0.934 g and the mass of the boat + dry was 0.836 g.
The difference between the two masses is 0.098 g.
This difference is equal to the mass of the solute (in this case, the compound) that was added to the boat. Thus, the concentration of the compound at 50.9°C is 0.098 g/mL.

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how many moles of barium are in a 25.0 g sample of barium? your answer should have three significant figures.

Answers

1 mole is equal to 6.023 × 10 ²³ molecules. 0.182 moles of barium are in a 25.0 g sample of barium.

What do you mean by mole ?

The term mole is defined as the amount of substance of a system which contains as many elementary entities.

One mole of any substance is equal to 6.023 × 10²³ units of that substance such as atoms, molecules, or ions. The number 6.023 × 10²³ is called as Avogadro's number or Avogadro's constant.

The mole concept can be used to convert between mass and number of particles.

I mole of any molecule = 6.023 × 10 ²³

1 mole of barium = 137.328g

To calculate moles, divide mass by molar mass yields number of moles.

25.0g barium × 1mol barium 137.328g barium

= 0.182mol barium

Thus, 0.182 moles of barium are in a 25.0 g sample of barium.

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Classify the reaction as endothermic or exothermique

Answers

When temperature of a reaction mixture rises as the energy is released during an exothermic process. Inside an endothermic reaction, its temperature drops as energy is absorbed.

What is an example of endothermic?

Enthesogenic responses Heat is taken in. 1) Photosynthesis: In order to transform carbon water and carbon dioxide and oxygen, plants must absorb heat sunlight energy. 2) Heating an egg: The egg is cooked by absorbing heat energy from the pan.

What happens in endothermic reaction?

Endothermic relates to any chemical reaction that absorbs heat from the environment. This energy that has been absorbed provides the activation energy for the process. This type of reaction is distinguished by its frigid feeling.

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a pipet is used to measure out 10 ml of water. if the mass of this volume of water is 9.990 g and the density of water is given as 0.9978 g/ml, what is the actual volume of water measured out?

Answers

the actual volume of water measured out is 10.02 ml, which is slightly higher than the intended volume of 10 ml. This could be due to various factors, such as the presence of air bubbles or human error in reading the pipet

To determine the actual volume of water measured out, we need to use the given information about the mass and density of water.

First, we can use the density formula to calculate the mass of 10 ml of water:

density = mass / volume

Rearranging the formula, we get:

mass = density x volume

Substituting the given values, we get:

mass = 0.9978 g/ml x 10 ml = 9.978 g

This means that the mass of the water measured out is 9.978 g.

However, the question states that the mass of the measured water is 9.990 g. This means that there is an additional mass of water that was inadvertently added or that there is an error in the measurement.

To find the actual volume of water measured out, we can use the following formula:

actual volume = measured mass / density

Substituting the given values, we get:

actual volume = 9.990 g / 0.9978 g/ml = 10.02 ml

Therefore, the actual volume of water measured out is 10.02 ml, which is slightly higher than the intended volume of 10 ml. This could be due to various factors, such as the presence of air bubbles or human error in reading the pipet

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write a net ionic equation for the overall reaction that occurs when aqueous solutions of sodium hydroxide and phosphoric acid (h3po4) are combined.

Answers

A net ionic equation describing the total reaction between sodium hydroxide and phosphoric acid (h3po4) in aqueous solutions.

H3PO4(aq) → Na3PO4(aq) + 3H2O(l)

To write the net ionic equation, we need to first write the balanced ionic equation, which shows all the ions in solution that participate in the reaction. The ionic equation for the reaction is:

3Na+(aq) + 3OH-(aq) + H3PO4(aq) → Na3PO4(aq) + 3H2O(l)

Next, we cancel out the spectator ions, which are the ions that appear on both sides of the equation and do not participate in the reaction. In this case, the spectator ions are the sodium ions (Na+) and the hydroxide ions (OH-). The net ionic equation is then:

H3PO4(aq) → Na3PO4(aq) + 3H2O(l)

This equation shows the actual chemical change that occurs in the reaction, which is the transfer of a proton (H+) from the phosphoric acid to the hydroxide ion, forming water and the phosphate ion.

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if 20.00 g of a compound reacts completely with 30.00 g of another compound in a combination reaction, how many grams of product are formed?

Answers

In a compound reaction, 80 grams of the product are created when 20 grams of one substance completely react with 30 grams of another.

Assuming we have the balanced chemical equation for the reaction, we can use stoichiometry to determine the amount of product formed.

let's say the balanced chemical equation for the reaction between the two compounds is: A + B -> C

where A and B are the two compounds and C is the product.

We can use the coefficients in the balanced equation to determine the mole ratio of A to B to C.

Let's assume that the mole ratio of A to B to C is 1:2:3.

Let's assume that the molar mass of compound A is 40 g/mol and the molar mass of compound B is 60 g/mol. Using these values, we can calculate the number of moles of each compound as:

moles of A = 20.00 g / 40 g/mol = 0.50 mol

moles of B = 30.00 g / 60 g/mol = 0.50 mol

Since the mole ratio of A to B to C is 1:2:3, we can see that 0.50 moles of A react with 1.00 mole of B to produce 1.50 moles of C.

To convert the moles of C to grams, we can use the molar mass of C. Let's assume that the molar mass of C is 80 g/mol. Using this value, we can calculate the mass of C formed as:

mass of C = 1.50 mol x 80 g/mol = 120 g

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Please help will give brainliest
What term describes the electrolyte capacity of methylamine which partially dissociates in water CH3NH2
Non-electrolyte
Strong electrolyte
Weak electrolyte

Answers

Answer:

Weak electrolyte

Explanation:

weak bases are ammonia (NH3), methylamine (CH3NH2), and ethylamine (C2H5NH2)

The term that describes the electrolyte capacity of methylamine (CH₃NH₂) which partially dissociates in water is Weak electrolyte.

Because it dissolves in water only partially into ions, methylamine (CH₃NH₂)  is a weak electrolyte. A small amount of electrical current can conduct when certain methylamine molecules split apart into ions CH₃NH₃⁺ and OH⁻ in a solution. Weak electrolytes have a moderate level of electrical conductivity compared to strong electrolytes which almost entirely dissociate into ions and non-electrolytes which do not dissociate.

This is because weak electrolytes exhibit intermediate conductivity due to their partial ionization. Understanding this behavior is crucial for understanding how solutions behave and how weak acids and bases like methylamine, affect chemical reactions.

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question 2
pls help asap

Answers

According to the question, Copper (II) nitrate, Cu(NO3)2 is the limiting reactant.

What is limiting reactant?

A limiting reactant, also known as a limiting reagent, is a reactant that limits the amount of product that can be produced in a chemical reaction. It is typically the reactant that is used up first in the reaction, preventing any further reaction from occurring. The limiting reactant is also referred to as the “rate-determining” reagent, because its depletion determines the rate at which the chemical reaction proceeds. In a chemical reaction, the amount of product formed is determined by the amount of limiting reactant that is available. When the limiting reactant is used up, the reaction stops, regardless of whether other reactants are present or not. In order to determine the limiting reactant, one must calculate the moles of each reactant and compare the values to determine which one is used up first. Once the limiting reactant is known, the theoretical yield of the reaction can be determined.

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Provide a brief history of your region and how your local river impacted the settlement and development of your community.

Answers

Parts of the population were liberated from the need on food collecting and hunting as a result of the rivers' provision of an abundance of drinkable water and fertile land to start cultivating food crops.

ImpactNearly 20 million people in 50 cities rely on the Mississippi River for their drinking water every day, which makes it extraordinary. 90% of the agricultural exports from our nation are made from the fertile soils within its sizable watershed.In addition to being the greatest drainage basin in the United States, the Mississippi also defines the borders of ten states. In addition to providing vital resources to both the United States and the rest of the globe, the Mississippi River has influenced American history and economy, especially the travel and fishing sectors.

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You would like to determine if the temperature inside a freezer is lower than 0°C. Using a glass of liquid water, describe how you could estimate the temperature. Could you determine if the freezer has a temperature of −10°C by just using the glass of water?

Answers

Yes, you can determine if the temperature inside a freezer is below 0°C by using a glass of liquid water. Here's how:

Fill a glass with room-temperature water.Place the glass of water inside the freezer and let it sit for a few minutes, until the water has stabilized at the temperature of the freezer.Observe the state of the water. If the water is still liquid, then the temperature inside the freezer is above 0°C. If the water is beginning to freeze, with ice forming on the surface, then the temperature is below 0°C.

However, it is not possible to determine the exact temperature of the freezer by just using a glass of water. The temperature can only be estimated by observing the state of the water and making a rough guess based on the extent of the freezing.

For example, if the water is just starting to freeze, then the temperature could be close to 0°C. If the water has mostly frozen, then the temperature could be closer to -10°C. However, without a thermometer, the exact temperature cannot be determined.

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