The molecular formula for the provided composition of different elements is C₆H₁₄N₄.
Every time a problem provides you with a compound's molar mass, you can use a little trick to help you determine the compound's molecular mass faster.
More specifically, instead of determining the empirical formula first, then using the molar mass to get the molecular formula, we can skip the empirical formula altogether.
As you know, a compound's molar mass tells we what the mass of one mole of that substance is. In this case, one mole of our compound has a mass of 142.00 g . This means that if we pick a sample of 142.00 g of this compound, w can use its percent composition to get the exact number of moles of each element you get per mole of compound.
So, we know that this compound's percent composition is as follows:
carbon ---> 50.7%
Hydogen ---> 9.9%
Nitrogen ---.> 39.4%
This means that it contains
142 g of compound × 50.7 g of carbon / 100 g of compound = 71.99 g of Carbon
142 g of compound × 9.9 g of hydrogen/ 100 g of compound = 14.05 g of hydrogen
142 g of compound × 39.4 g of nitrogen/ 100 g of compound = 55.94 g of nitrogen
Now all we have to use the molar masses of
hese three elements to determine how many moles of each we get in one mole of our compound.
For carbon (C) : 71.99 g × 1 mole of C / 12.01 g
= 5.99 ~ 6
For Hydrogen (H) : 14.05 g × 1 mole of H / 1.007g
= 13.95 ~ 14
For Nitrogen (N) : 55.94 g × 1 mole of N / 14.006 g
= 3.99 ~ 4
therefore, molecular formula of compound will be C₆H ₁₄N₄ .
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When fireflies give off light a reaction takes place. Is this an example of endothermic or exothermic reaction?.
Most likely, exothermic processes are what cause the light that fireflies emit. because fuel and oxygen undergo a chemical process that produces carbon dioxide and water.
In thermochemistry, an exothermic process is one "for which the overall standard enthalpy change H is negative." Exothermic processes typically result in heat. A reaction for which the overall standard Gibbs energy change G is negative is what the term "reaction" according to the IUPAC means.
The exergonic response and the phrase are commonly mistaken. A very exothermic reaction will often accompany an exergonic reaction since "H" significantly contributes to "G." The majority of the remarkable chemical reactions presented in classrooms are exothermic and exergonic processes.
On the other hand, an endothermic reaction typically produces heat and is brought on by a rise in the entropy of the system.
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why do you think it is an advantage for the enzyme to remain unchanged while catalyzing a chemical reaction?
An advantage for the enzyme to remain unchanged while catalyzing a chemical reaction as it can catalyze more reactions.
The benefits of the usage of enzymes, as opposed to the conventional chemical catalyst, encompass higher stereoselectivity, better yield, higher efficiency, and less waste.
On account that most reactions to your body's cells want unique enzymes, every cell incorporates thousands of different enzymes. Enzymes let chemical reactions within the body happen tens of millions of instances faster than without the enzyme. because enzymes aren't a part of the product, they can be reused again and again.
It is vital to remember that enzymes no longer change whether or not a response is exergonic (spontaneous) or endergonic. this is due to the fact they no longer trade the free strength of the reactants or products. They only lessen the activation strength required for the reaction to move forward
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What does the balanced reaction of titration of diprotic acid with naoh tell you about the amounts of acid and base required for the reaction?.
The amount of NaOH required is twice that of H₂SO₄. According to the balanced equation.
Define diprotic acid.Diprotic Acid(also called dibasic acid) an acid that can donate two hydrogen ions (H+) or protons per molecule in aqueous solution. A dibasic acid is a type of polybasic acid that can donate multiple protons per molecule. Examples: sulfuric acid (H₂SO₄) and carbonic acid (H₂CO₃). The number of equivalence points in the titration curve of polybasic acids depends on the number of acidic protons in the acid. Therefore, the titration curve has two equivalence points because we titrated diprotic acid with two acidic protons.
According to the balanced chemical formula:
2NaOH + H₂SO₄ → Na₂SO₄ + 2H₂O
The mole ratio of H₂SO₄ and NaOH is 1:2. This means that 2 moles of NaOH are required for each mole of H₂SO₄.
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Acids react with insoluble metal oxides to produce salts. Plan a method to produce a pure, dry sample of the soluble salt copper chloride from an acid and a metal oxide.
We can react copper oxide with HCL to make soluble salt of copper chloride.
CuO + 2HCl = CuCl2 +H2O
Metal oxides are usually basic in nature. When they react with acid, products are salt and water. Copper oxide is a weak base. In a neutralization reaction, acid reacts with base to form salt and water. Hydrochloric acid is a strong acid.
Copper does not react with hydrochloric acid. As a metal acid reaction leads to redox reaction. Copper has a higher reduction potential than hydrogen, so it does not react with mineral acids like hydrochloric acid or sulphuric acid.
When acid and base react to form salt and water the reaction is neutralisation reaction. Neutralization is an acid base type reaction which is non redox in nature.
Hence Copper oxide with HCl is a Neutralization reaction.
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how many grams of ch3ohch3oh must be added to water to prepare 310 ml of a solution that is 4.0 m ch3ohch3oh ? express your answer using two significant figures.
To prepare 310 ml solution 4M CH3OH, we need to add 19.2g of CH3OH in water.
Given
n=M×V
Here, n= number of moles of CH3OH
M= Molarity of solution of water and CH3OH
V= Volume of solution
Mass of CH3OH required = n × molar mass
Molarity of solution (M) = 4M
Volume of the solution (V) = 310ml
n = M×V
M = nV
Volume of the solution = 310 / 1000L = 0.31L
n = 2 × 0.31 = 0.62
The number of moles of CH3OH required is 0.6 mol.
n = m / molar mass
m = n × molar mass
The molar mass of CH3OH is 32g/mol.
m = 0.6 mol × 32g/mol = 19.2g
To prepare 310 ml solution 4M CH3OH, we need to add 19.2g of CH3OH in water.
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1. write the chemical reaction for the formation of banana oil from acetic acid and isopentyl alcohol.
The formula for the formation of banana oil is expressed by the chemical equation given below:
CH₃COOH + C₅H₁₂O → C₇H₁₄O₂ + H₂
When acetic acid (CH₃COOH) reacts with isopentyl alcohol (C₅H₁₂O), a fragrant substance is produced known as isopentyl acetate (C₇H₁₄O₂) along with hydrogen. Isopentyl acetate have a odor of bananas so it is also known as banana oil. The production of banana oil (C₇H₁₄O₂) is given as:
CH₃COOH + C₅H₁₂O → C₇H₁₄O₂ + H₂
Banana oil is chiefly used as a constituent in paint colors. It is used as a solvent in pant. Also artificial fruit flavors contains isopentyl acetate or banana oil in it.
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If the counterion is sodium, what is responsible for maintaining its concentration gradient?.
the sodium-potassium pump responsible for maintaining its concentration gradient.
The sodium-potassium pump is an enzyme found inside the membrane of all animal cells. It performs numerous capabilities in cellular body structure. The Na⁺/k⁺-ATPase enzyme is active. For each ATP molecule that the pump makes use of, three sodium ions are exported and two potassium ions are imported.
ATPase pump allows to keep osmotic equilibrium and membrane ability in cells. The sodium and potassium pass toward the attention gradients. The Na+ k+-ATPase pump maintains the gradient of a higher awareness of sodium extracellularly and a better stage of potassium intracellularly.
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Which was a requirement of the Affordable Care Act quizlet?.
No matter how ill they are or if they have any pre-existing conditions, it is a requirement of the Affordable Care Act that all Americans nor legal residents get health insurance.
The Affordable Care Act does what?For households earning below 100% - 400% of both the federal poverty threshold, the law offers customers subsidies (referred to as "premium tax credits") that reduce prices (FPL). Increase Medicaid coverage to include all adults with incomes below 138% of the federal poverty level.
The Affordable Healthcare Act covers who?Obamacare allows people to purchase health insurance regardless of their financial level. You may be eligible for a prescription tax credit or other special discounts that will lower the cost of your health insurance if your family income between 100% or 400percent of total of both the federal poverty threshold (FPL).
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Look at the image of the pedestrian trying to make her way across a street during a blizzard. How do you think extreme weather events like this blizzard will be different in the future? Why?
The most well-known blizzards are winter storms that create several inches of snow and occur with strong winds that cause blowing snow and whiteout conditions, however not all blizzards take place in this fashion.
What is a Ground Blizzard?In the Midwest, ground blizzards form with little to no concurrent (or new) snowfall. The Children's Blizzard of 1888, which caused an estimated 235 fatalities in the Great Plains, was one of the most infamous ground blizzards.Because it was preceded by uncommonly mild air, which made people let their guard down, this ground blizzard was exceedingly hazardous. Despite the fact that many individuals went outside without suitable winter clothing, the mild weather did not continue for very long. Since then, there have been innumerable further ground blizzards, many of which have been fatal.The usual ground blizzard happens when an Arctic cold front passes through the area, causing temperatures to drop and winds to pick up quite quickly, frequently reaching gusts of 50 to 60 mph. This strong wind will quickly pick up any snow that is on the ground and cause whiteout conditions if there are several inches of deep, recent snow. Cold temperatures that follow the Arctic front are another factor making these blizzards dangerous. A risk of frostbite or hypothermia exists for anyone stranded in their car or forced to walk outside.To Learn more About blizzards refer to :
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describe the two factors that determine whether a collision between molecules of a and b results in a reaction.
Two factors that determine whether a collision between molecules of a and b results in a reaction is the total kinetic energy of the reactant and the orientation of the collision
The collision energy must be greater than the activation energy for the reaction and the collision must occur in the proper orientation and the collision frequency must be greater than the frequency factor for the reaction and a collision between the reactant must occur and the tow factors that determine the possibility of reaction between molecules would be the total kinetic energy of the reactant and the orientation of the collision and the particles should collide so as the total energy would be equal to the activation energy of the reaction
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Why do nadh and fadh2 donate electrons to different electron transport chain complexes?.
This difference occurs because they charge electrons at different points in the electron transport chain.
NADH pairs electrons with the first enzyme complex, the NADH dehydrogenase complex, and FADH₂ shares electrons with the second enzyme complex, the succinate dehydrogenase complex. This modifies the number of protons pumped out of the mitochondria per molecule of NADH and FADH₂ and determines the amount of ATP produced.
NADH is the reduced form of nicotinamide adenine dinucleotide (NAD), while FADH₂ is the reduced form of flavin adenine dinucleotide (FAD). NADH is a coenzyme derived from vitamin B3 (niacin) and FADH₂ is a coenzyme derived from vitamin B2 (riboflavin)
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what occurs when aqueous aluminum nitrate, a l ( n o 3 ) 3 , reacts with aqueous ammonium phosphate, ( n h 4 ) 3 p o 4 ? select one: n h 4 n o 3 forms as a precipitate. no precipitate forms and no reaction occurs. ( n h 4 ) 3 p o 4 forms as a precipitate. a l ( n o 3 ) 3 forms as a precipitate. a l p o 4 forms as a precipitate.
Aluminum phosphate as a precipitate is produced on reaction of aqueous aluminum nitrate with aqueous ammonium phosphate.
There is a possibility that an insoluble solid substance could form when two aqueous solutions combine chemically. This substance is insoluble, and the reaction is what is known as a precipitation reaction.
A (aq) + B (aq) → C (aq)+ D (s)
The balanced chemical equation illustrating the reaction's byproducts is:
Al(NO₃)₃(aq) + (NH₄)₃PO₄(aq) → AlPO₄(s) + 3NH₄NO₃(aq)
Here, AlPO₄(s) is produced as a precipitate.
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suppose you have two samples that are equal in weight, 22.3 g zn and 22.3 g cr2o3 . calculate the number of moles of each substance.
The Number of Moles of Zn is 0.34108 and the number of moles of Cr2O3 is 0.14671.
What is Number of Moles?
The ratio of a substance's given mass in a chemical reaction to the mass of one mole of that material is what determines how many moles there are of that substance. A mole of any substance is equal to 6.0231023, or Avogadro's number. The ratio of a substance's given mass in any kind of chemical reaction to the mass of one mole of that material is the number of moles of that substance.
Moles of Zn can be calculated by using the formula
22.3 g of Zn x 1 mole Zn/65.4 g = 0.341 moles of Zn.
Moles of Cr2O3 can be calculated by using the formula
22.3 g of Cr2O3 x 1 mole Cr2O3/151.99 = 0.146 moles of Cr2O3.
Hence, 0.34108 and 0.14671 will be the number of moles for Zn adn Cr2O3 respectively.
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Zn has a mole count of 0.34108, while Cr2O3 has a mole count of 0.14671.
What is Number of Moles?
The number of moles of a substance is determined by the ratio of its given mass in a chemical reaction towards the mass of one mole of that substance. A mole, or 6.0231023, is equal to one mole of any substance. The number of moles of a substance is defined as the mass of one mole divided by the given mass of the substance in any type of chemical reaction.
The formula can be used to determine moles of zinc.
22.3 g of Zn x 1 mole Zn/65.4 g = 0.341 moles of Zn.
The formula can be used to determine moles of Cr2O3.
22.3 g of Cr2O3 x 1 mole Cr2O3/151.99 = 0.146 moles of Cr2O3.
Therefore, the moles of Zn and Cr2O3 will be 0.34108 and 0.14671, respectively.
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two different compounds have the formula xef2cl2. write lewis structures for these two compounds and describe how measurements of dipole moments might be used to distinguish between them
Both the XeCl bond dipoles and the XeF bond dipoles (red) cancel.
The trans isomer is nonpolar because there is no net dipole.
The Xe-F and Xe-Cl bond dipoles do not cancel in the cis isomer.
The molecule in the cis isomer is polar and has a net dipole moment.
Let's Draw the Lewis structure.There are 32 valence electrons in the trial structure.
8+14+14=36 valence electrons for 1 Xe+2 F+2 Cl.
We add two line pairs to the center atom since we have four more electrons.
The Lewis structure is
This system is an [tex]AX_{4} E_{2}[/tex]
It has an octahedral electron geometry.
The F and Cl atoms will occupy the equatorial positions, while the bulky lone pairs will occupy the top and bottom axial positions.
Square-planar molecular geometry is present.
There are two possible arrangements for the atoms.
The binding angles between F, Xe, and Cl are 180 degrees in the trans isomer.
Both the XeCl bond dipoles and the XeF bond dipoles (red) cancel.
The trans isomer is nonpolar because there is no net dipole.
The Xe-F and Xe-Cl bond dipoles do not cancel in the cis isomer.
The molecule in the cis isomer is polar and has a net dipole moment.
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determine the molar concentration of ethanol (ch3ch2oh, 46.08 g/mol) in a wine that is 14% ethanol by mass. the density of this wine is 0.93 g/cm3.
2.83 M will be the molar concentration of ethanol (CH₃CH₂OH, 46.08 g/mol) in a wine that is 14% ethanol by mass.
Molar mass of CH₃CH₂OH = 46.08 g/mol
Percentage in wine = 14 %
Density of wine = 0.93 g/cm3
Molar concentration = ?
Calculate density of ethanol:
density of ethanol = (% of ethanol / 100) × density of wine
density of ethanol = (14 / 100) 0.93 g/ml
density of ethanol = 0.14 × 0.93 g/ml
density of ethanol = 0.1302 g/ml
Supose we have 1 ml wine so mass = 0.1302 g / ml
Now calculate the number moles of ethanol
number of moles = mass / molar mass
number of moles of CH₃CH₂OH = 0.1302 g / 46.08 g/mol
number of moles of CH₃CH₂OH = 0.00283
Calculate the molarity of ethanol
molarity = number of moles / molar mass in L
molarity of CH₃CH₂OH = 0.00283 mol / 1 ml × 1000 ml / 1L
molarity of CH₃CH₂OH = 2.83 mol/L
molarity of CH₃CH₂OH = 2.83 M
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Nuclear fission occurs when an atom, such as uranium, releases energy when it splits when subjected to which subatomic particle?.
Nuclear fission occurs when an atom, such as uranium, releases energy when it splits when subjected to neutron subatomic particle
Fission occur when a neutron slam into a larger atom and forcing it to excite and split into two smaller atom and also known as fission product and during nuclear fission a neutron collide with a uranium atom and split it and releasing a large amount of energy in the form of heat and radiation and more neutron are also released when a uranium atom split and original uranium 235 nucleus absorbed a neutron split into the krypton 92 nucleus and barium 141 nucleus and release three more neutron upon splitting
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The electronegativity difference between the atoms in a molecule of hcl can be used to determine.
The electronegativity difference between the atoms in a molecule of HCl can be used to determine by the polarity of the bond present between the atoms.
The electronegativity is defined as the tendency of the atom to attract the shred paired of electrons towards it self. in the case of HCl , bond the electronegativity difference is given as :
electronegativity of H = 2.20
electronegativity of Cl = 3.16
the difference in electronegativity , ΔE = 3.16 - 2.20
= 0.96
0 < ΔE < 0.5 = covalent bond
0.5 < ΔE < 2.1 = polar covalent
2.1 < ΔE = ionic bond
so, in HCl the electronegativity difference is 0.9 that means HCl is the polar covalent bond.
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five dialysis bags, constructed from a semi-permeable membrane that is impermeable to sucrose, were filled with various concentrations of sucrose and then placed in separate beakers containing an initial concentration of 0.6 m sucrose solution. at 10-minute intervals, the bags were massed and the percent change in mass of each bag was graphed. which bag contained 0.6 m sucrose solution?
The bag contained 0.6 m sucrose solution is B .
What is dialysis ?
Dialysis is a kidney failure treatment that filters your blood to remove unwanted toxins, waste products, and excess fluids. When your kidneys fail, your body may struggle to clean your blood and keep your system chemically balanced. Dialysis can replace some kidney function and, when combined with medication and proper care, can help you live longer.
Line C represents the bag that held a solution isotonic to the 0.6 M solution at the start of the experiment.
Line A in the graph depicts the bag with the highest initial sucrose concentration.
Line B in the graph represents bags containing a hypertonic solution at 60 minutes since there is still a rapid increase in mass during this time period.
Line D in the graph represents bags containing a hypotonic solution at 60 minutes because there is still a rapid loss in mass throughout this time period.
Line E in the graph depicts the bag with the lowest starting sucrose concentration.
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by titration, it is found that 12.7 ml of 0.185 m naoh(aq) is needed to neutralize 25.0 ml of hcl(aq). calculate the concentration of the hcl solution.
The concentration of HCl is 0.093 M
What is titration?
Titration is a typical quantitative chemical analysis method used in laboratories to ascertain the concentration of an identified analyte. It is also referred to as titrimetry and volumetric analysis (a substance to be analyzed). A reagent, also known as a titrant or titrator, is created as a standard solution with a specified volume and concentration.
The concentration of the analyte is determined by the titrant's reaction with an analyte solution (also known as the titrand). Titration volume refers to the volume of titrant that interacted with the analyte.
Given,
Volume of NaOH = 12.7 ml
Concentration of NaOH( MNaOH) = 0.185 M
Volume of NaOH= 25.0 ml
HCl + NaOH → NaCl + H2
In this chemical reaction the ratio between the number of moles of HCl and NaOH is 1:1 .
moles of HCl = moles of NaOH
MHCl * Volume of HCl = MNaOH × Volume of NaOH
MHCl = (MNaOH ×volume of NaOH)/ volume of HCl
MHCl = ( 0.185 * 12.7)/ 25
MHCl = 0.093 M
Hence, the concentration of HCl is 0.093 M
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if atmospheric co2 concentration increases from 390 ppm to 800 ppm, what is the estimated percentage change in dry mass for corn? for velvetleaf?
Corn's dry mass would drop by around 8%, whereas velvetleaf's dry mass would rise by nearly 32%.
What occurs to transpiration as CO2 levels rise?An rise in atmospheric CO2 means that stomata, or the pores on leaves that exchange gases between the leaf and the atmosphere, do not need to open as much, which reduces transpiration, or plant water use. This indicates that there is less water loss and less transpiration at the scale of a leaf.
What occurs in plant cells as CO2 concentration rises?Understanding how plants react to e[CO2] is crucial because of these detrimental impacts when CO2 levels grow. Increased production of carbohydrates is a result of the increased photosynthesis that e[CO2] causes.
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Arrange the following ions in order of increasing ionic radius: F- , Na+ , O2-, Mg2+, N-3
Answer:
think in your question the nitrogen is in -3 state.Only then the given ions become iso-electronic species.
The ionic radii of isoelectronic species increases with a decrease in the magnitudes of nuclear charge.
The arrangement of the given species in order of their increasing nuclear charge is as follows:
N3– < O2– < F– < Na+ < Mg2+ < Al3+
Nuclear charge = +7 +8 +9 +11 +12 +13
Therefore, the arrangement of the given species in order of their increasing ionic radii is as follows:
Al3+ < Mg2+ < Na+ < F– < O2– < N3–
Explanation:
What volume of water would you add to 15. 0 ml of 12 m hcl to make it to 6. 0 m solution?.
The concentration terms are molality, normality and mole fraction. Molarity can be used to find out the ionic strength of any solution. Therefore, volume of 12 M diluted solution of HCl is 30ml.
What is molarity?Molarity can be calculated by dividing number of moles of solute by volume of solution in litre. Molarity is affected by temperature. Its unit is mole/liter. It measure the concentration of any solute in a solution.
Mathematically,
According to the neutralization law,
M₁V₁=M₂V₂
where,
M₁ = molarity of stock solution = 12 M
V₁ = volume of stock solution = 15ml
M₂ = molarity of dilute solution = 6M
V₂ = volume of dilute solution = ?
substituting all the given values we get
M₁V₁=M₂V₂
12 M×15ml=6M×V₂
V₂=30ml
Therefore, volume of 12 M diluted solution of HCl is 30ml.
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If the heat of a reaction is measured at constant pressure, it is equal to a change in?.
A chemical reaction that takes place at constant pressure, the amount of heat absorbed or released by the system will be equal to the enthalpy change. The tool used to determine the change in heat is called a calorimeter, so the calculation is done by calorimetry.
EnthalpyEnthalpy is a state function. Therefore, the value of the enthalpy change depends only on the initial and final states, and does not depend on how the process of change occurs or the course of the reaction. Enthalpy is a physical quantity whose value is influenced by the amount and form of matter, and is influenced by the environment (temperature and pressure). Measurement of enthalpy at different temperatures and pressures will produce different enthalpy values. Therefore, it is agreed that a standard state is at a temperature of 298 K and a pressure of 1 atm.
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what is the concept behind common ion effect and how is this being tested in part i of the experiment? what is the concept behind part ii of the experiment?
The concept behind the common ion effect is ionization.
When another electrolyte (which includes an ion that is also present in the first electrolyte, i.e., a common ion) is added, the common ion effect suppresses the ionization of the first electrolyte. It is thought to follow from Le Chatlier's principle (or the Equilibrium Law).
An increase in the concentration of one of the ions dissociated in the solution by the addition of another species containing the same ion will result in an increase in the degree of association of ions in a solution where there are several species associating with each other via a chemical equilibrium process.
In the compounds of transition metals, this effect cannot be seen. This occurs as a result of the d-block elements' propensity to produce complex ions. The substance cuprous chloride, which is insoluble in water, is a good example of this. When chloride ions are added, the molecule forms the water-soluble CuCl2 complex ion, which can then be dissolved in water.
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_____ reactions occur when a more reactive metal reacts to displaces a ___ reactive metal in a compound.
What are the missing words?
Answer:
Displacement reactions occur when a more reactive metal reacts to displace a less reactive metal in a compound.
Explanation:
step 3: determine the conditions that will hydrolyze the nitrile to the carboxylic acid. select the conditions.
The conditions that will hydrolyze the nitrile to the carboxylic acid is the both acid or base in water and the heat.
Nitrile to carboxylic acid :
nitrile get hydrolysis with water and form carboxylic acid:
CH₃CN + H₂O -----> CH₃CONH₂ ----> CH₃COONH₄ + H⁺ ----> CH₃COOH
Nitrile hydrolysis by acid catalyst :
CH₃CN + H₂O + HCl ----> CH₃COOH + NH₄Cl
Nitrile hydrolysis by base catalyst :
CH₃CN + H₂O + NaOH ---> CH₃COONa⁻ + NH₃ + HCl --> CH₃COOH
Thus, The conditions that will hydrolyze the nitrile to the carboxylic acid is the both acid or base in water and the heat.
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What’s the total amount of atoms?
Answer:
45
Explanation:
Twelve plus Twenty two plus eleven equals forty five. Basically just add all the numbers to find the total number of atoms
(I could be wrong I guessed
would you have determined an identical rate law for the reaction of crystal violet and oh, if you had used [oh] of 0.030m and 0.040m instead of the concentrations you did use in the procedure? briefly explain.
Two systems with identical Rate Laws but dissimilar initial concentrations are incompatible.
What is Rate Law?
A rate law demonstrates how the concentration of the reactant affects the rate of a chemical reaction. The rate law typically takes the form rate = k[A]n for a reaction like aA products, where k is the proportionality constant referred to as the rate constant and n is the order of a reaction with respect to A. The amount of n must be determined experimentally because it is unrelated to the reaction stoichiometry.
Rate Law= K × Cvc × Coh
Vc+OH
We use the abbreviation Vc for Voilet crystals.
Here, limiting reactant is (Vc) which is the violet crystals.
Cvc = initial Cvc × (1 - x)
Coh = initial Cvc × (1 - x)
Using these values in the 1st equation
Rate Law = K × Cvc × Coh
we get,
Rate Law = K × (Cvc 1)² × (1-x)²
This new equation demonstrates that the rate law depends on the initial concentration of the reagents.
As a result, we can state that the rate law is not the same when the values of two systems differ.
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briefly describe the following modes of reproduction, in terms of: (a) number of parents; (b) genotypes of the offspring q8.1.1 asexual reproduction q8.1.2 sexual reproduction
The modes of reproduction are sexual and asexual reproduction. The number of parent involved in asexual reproduction is one and two in case of sexual reproduction.
Modes of reproduction:-
Sexual reproduction: It is a kind of reproduction when two male and female organisms' gamete cells unite to create a single zygote. This zygote divides its genetic material in half and gives the other half to the mother and father. There are many diverse methods of sexual reproduction in both plants and animals, however the fundamentals are the same. The freshly developed individual created through sexual reproduction is genetically and physically distinct from the parents.
Fertilization is the process through which sperm and egg (ovum) combine to form a zygote, which is how humans reproduce sexually. The critical phase of sexual reproduction is fertilization. Sexual reproduction will not be complete without fertilization.
Sexual reproduction: It is a reproductive method in which a single organism participates. The resultant child has nearly always the same number of chromosomes as the mother and is genetically similar to her. Thus, they are referred to as clones. They are also identical replicas of their parent cell. Different entities choose to reproduce asexually. Budding (e.g., Hydra), binary fission (e.g., Amoeba, bacteria), spore production (e.g., ferns), fragmentation (e.g., Planaria), and vegetative propagation are a few examples of asexual processes (e.g. Onion).
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Be sure to answer all parts. How many electrons in an atom can have each of the following quantum number or sublevel designations? (a) n = 2, l = 1, ml = 0 (b) 5p (c) n = 4, l = 3.
(a) The maximum number of electrons an atom can have with the sublevel designation is 2 electrons.
(b) The maximum number of electrons for p-orbital is 6 electrons.
(c) The maximum number of electrons for f-orbital is 14 electrons.
(a) For n = 2, I = 1, ml = 0,
The energy level will be:
Energy level = 2(1) + 1 = 3 sub-orbitals
= -1 0 1 : ( 2 electrons each)
Thus, the maximum number of electrons an atom can have with the sublevel designation is 2 electrons.
(b) 5p
p-orbital has 3 sub-orbitals and a maximum of 6 electrons
(c) n= 4, I = 3
energy level = 2(3) + 1 = 7 sub-orbitals
7 sub-orbitals correspond to the f-orbital and it has a maximum of 14 electrons.
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