How many liters of 1.0 M NaCl solution are needed to react with 5 M of the solute

a. For the given combination of reactants, the limiting reagents is F₂

b. The mass of HF that would be made is 106.65 g

From the question, we are to identify the limiting reagent and calculate the mass of HF made

First, we will write the balanced chemical equation for the reaction

3F₂ + NH₃ → 3HF + NF₃

This means 3 moles of F₂ reacts with 1 mole of NH₃ to produce 3 moles of HF and 1 mole of NF₃

From the given information,

We have 5.33 moles of F₂ and 2.22 moles of NH₃

Since,

3 moles of F₂ reacts with 1 mole of NH₃

Then,

5.33 moles of F₂ will react with 1.78 moles of NH₃

Therefore, NH₃ is in excess and F₂ is the limiting reagent

Hence, for the given combination of reactants, the limiting reagents is F₂

b. For the mass of HF that would be made

From the balanced chemical equation,

3 moles of F₂ reacts with 1 mole of NH₃ to produce 3 moles of HF

Then,

5.33 moles of F₂ will react with 1.78 moles of NH₃ to produce 5.33 moles of HF

Number of moles of HF produced = 5.33 moles

Using the formula,

Mass = Number of moles × Molar mass

Molar mass of HF = 20.01 g/mol

∴ Mass of HF produced = 5.33 × 20.01

Mass of HF produced = 106.65 g

Hence, the mass of HF that would be made is 106.65 g

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Answer:

a new scientific discovery that benefits the environment

Answer:

5.55moles

Explanation:

[tex]2moles \: of \: aluminium = 3 \: moles \: of \: h2 \\ 3.7moles \: aluminium = x \\ 2x = 3.7 \times 3 \\ 2x = 11.1 \\ x = \frac{11.1}{2 } \\ x = 5.55moles[/tex]

Answer:

Yes, because they have strong wings..

Answer:

C) Solar Energy, i,e, Energy that comes from the sun

Answer:

Temperature is the average kinetic energy of particles of an object. Warmer objects have faster particles and higher temperatures. If two objects have the same mass, the object with the higher temperature has greater thermal energy. Temperature is measured with a thermometer.

Answer:

.03483 moles

Explanation:

.45 * 77.4/1000 =

Answer:

0.271J/g°C

Explanation:

mass of iron=93.3g

∆°C=65.58

mass of water=75g

C of water=4.184

∆°C=22.4-16.95=5.29°C

mc∆°C of iron = mc∆°C of water

93.3×C×5.29=75×4.184×5.29

C=75×4.185×5.29/93.3×65.58

C=0.271J/g°C

The boundary of a watershed is defined by the highest elevations surrounding a lake or river segment. A drop of water falling outside of the boundary will drain to another watershed.

Answer:

The boundary of a watershed is defined by the highest elevations surrounding a lake or river segment. A drop of water falling outside of the boundary will drain to another watershed.

Explanation:

Answer: The correct answer is 188.03K.

Explanation:

As a result, the gas sample will have a volume of 551mL at a temperature of 188.03K.

Answer:

Nonmetals are located on the upper right side of the Periodic table (see above image). Exception: Hydrogen is a nonmetal which is located on the left top corner of the Periodic table. Well, you have got the answer of “Where are Nonmetals located on the Periodic Table?”

Explanation:

A.2-octene  is the name of the molecule shown below.

The oct part of the name indicates the parent chain. In this case, oct- is an abbreviation for octane, which means that there are 8 carbons in the parent chain. The first part of the name, cis-2. 2 is used to indicate the first atom that forms the double bond above.

Alkenes are classified into higher olefins and alpha olefins. This means that the double bond is in the alpha (primary) position, which makes the compound more reactive and provides useful chemistry.

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Answer:

A decompositon reaction is a reaction that takes place when one reactant breaks down into two or more simpler substances. The decomposition reaction can be represented by the general equation: AB → A + B. Most of the decomposition reactions require an input of energy in the form of heat, light or electricity

Explanation:

Answer:

The pH of pure water is 7, the negative logarithm of 1 X 10-7. A neutral solution is one that is neither acidic nor basic. The hydrogen ion concentration equals the hydroxide ion concentration, and both equal 1 X 10-7 M. In a neutral solution, then, pH = pOH = 7.

Explanation:

The hydrogen ion concentration equals the hydroxide ion concentration, and both equal  to [tex]1 X 10^{-7}[/tex] M. Hence, in a neutral solution, then, pH = pOH = 7.

pH is a quantitative measure of the acidity or basicity of aqueous or other liquid solutions.

pOH is calculated by taking negative logarithm of hydroxide ion concentration.

The pH of pure water is 7, the negative logarithm of [tex]1 X 10^{-7}.[/tex]

A neutral solution is one that is neither acidic nor basic.

The hydrogen ion concentration equals the hydroxide ion concentration, and both are equal to [tex]1 X 10^{-7}[/tex] M.

Hence, in a neutral solution, then, pH = pOH = 7.

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Answer:

90.35 × 10²³ atoms

Solution:

1 molecules of H20 contains 3 atoms,.

And we know that one mole of any molecule contains 6.023 × 10²³ atoms from Avogadro's number,

hence 5 moles of H20 will contain = 5× 6.023 × 10²³ × 3 atoms = 90.35 × 10²³ atoms!

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Answer:

True

Explanation:

Differences in water density affect vertical ocean currents (movement of surface ocean water to the bottom of the ocean and movement of deep ocean water to the surface). … Denser water tends to sink, while less dense water tends to rise.

Differences in the density of seawater cause it to move. Therefore, the given statement is true.

The substance's mass per unit of volume is known as its density (volumetric mass density or specific mass). Although the Roman letter D may also be used, the sign most frequently used for density is (the lower case Greek letter rho). Density is calculated mathematically by dividing mass by volume.

Where m represents the mass, V is the volume, and is the density. Density is sometimes roughly characterized as weight every unit volume, while this is incorrect technically; this quantity is much more precisely known as specific weight. One example of this is in the US oil and gas business. Differences in the density of seawater cause it to move.

Therefore, the given statement is true.

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The most metallic element must have the most negative reduction potental therefore, the most metallic element here is calcium.

A metal belongs to the groups that appear at the left hand corner o the periodic table. These elements are often sonorous when struck and possess a characteristic lustre.

We must know that the most metallic element must have the most negative reduction potental. Hence, the most metallic element here is calcium.

Missing parts: Select the element with the greatest metallic character. Li, Al, Cs, Ca​

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Answer:

20÷4=5g/ml, bcz it is in mL but in other situations you will need to convert it to L by dividing it by 1000

Mass= 20.0g

Volume= 4.0mL

Density of substance

[tex]\text{Density} = \frac {\text{Mass}}{ \text{Volume}}[/tex]

[tex] \text{Density} = \frac{20.0 \text{ \: g}}{4.0 \: \text{mL}} \\ \\ \text{Density} = \frac{ \cancel{20.0}\text{ \: g}}{ \cancel{4.0} \: \text{mL}} \\ \\ \text{Density} = 5.0 \: \text{g/mL}[/tex]

[tex]\therefore \text{Option B}= 5.0 \: \text{g/mL is the correct answer}[/tex]

Answer:

It plays the role of a catalyst.

The molarity of a solution that has 26 moles of NaCl in 2.7L of water is 9.63M.

The molarity of a solution can be calculated by dividing the number of moles of the solute by the volume of the solution as follows:

Molarity = no of moles ÷ volume

According to this question, a solution has 26 moles of NaCl in 2. 7 l of water. The molarity is as follows:

Molarity = 26mol ÷ 2.7L

Molarity = 9.6M.

Therefore, the molarity of a solution that has 26 moles of NaCl in 2.7L of water is 9.63M.

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Answer:

12000m & 12km

Explanation:

covert 20mins into seconds.

20 x 60= 1200seconds

distance = speed x time

distance = 10 x 1200

distance = 12000m

1km=1000m

12000/1000= 12km

hope that helps :)

Answer:

b. CA(OH)2 - Calcium hydroxide

Answer: Zn2+

Explanation:

The standard reduction potential of the given species is as follows:-

[tex]\begin{aligned}&Z_{(aq)}^{2+}+2 e^{-} \longrightarrow {Zn}(\mathrm{s}) \quad E^{\circ}=-0.76 \mathrm{~V}\\&\mathrm{Mn}_{(\text {aq) }}^{2+}+2 e^{-} \longrightarrow \mathrm{Mn}(\mathrm{s}) \quad E^{\circ} = -1.03 \mathrm{~V}\\&\mathrm{Na}^{+}_{(\text {aq) }} + e^{-} \longrightarrow \mathrm{Na}\text{(s)} \quad E^{\circ}=-2.71 \mathrm{~V}\end{aligned}[/tex]

[tex]\begin{aligned}&\mathrm{Al}_{(\text {aq) }}^{3+}+3 e^{-} \longrightarrow \text {Al}\text{(s)}\quad E^{0}=-1.66 \mathrm{~V}\\&\mathrm{Li}^{+}(aq)+{e}^{-} \longrightarrow \mathrm{Li}\text{(s)} \quad E^{0}=-3.05 \mathrm{~V}\end{aligned}[/tex]

In the electrochemical series, the species having the lowest electromotive force—the lowest negative value—will be reduced first and the species having the highest negative value will be reduced last

Therefore, Zn2+ will be reduced first and Li+ will be reduced last

The reduction has been defined as the loss of electrons. The species of molten salt that reduces first has been zinc ion in electrolysis.

The electrolysis has been defined as the process of the ionization of the salt under the influence of the electric field.

The species with the lowest reduction potential will reduce first. The reduction potential of the following is:

Zinc has the lowest reduction potential and thus is the reduced first among the others.

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Answer:

the chemical formula of benzaldehyde is C₇H₆O

In the illustration A would be the reactants and E would be the products. B would be the activation energy (Ea), C would be the potential energy of reactants, F would be the potential energy of products, and D would be the potential energy change.

The energy diagram shows the energy states of the components of reactions.

From the diagram, A being the reactant becomes E, the product. The minimum energy that A needs to overcome to arrive at the product (activation energy) is B.

The energy state of the reactant A before becoming the product is C while that of the product E is F. The difference in the energy state of A and E is D.

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Answer:

Formula/Molecular Mass = 147.77415g/mol = 148g/mol (to 3 significant figures)

Explanation:

Given the Law of the Conservation of Mass, the amount of H2O produced will be equal to 10.00g-4.40g = 5.6g

Given equation n=m/M ,

n(H2O)= 5.6/ (1.008×2)+(15.999) = 0.318520677 moles

∴ x=0.318520677 moles

∴ Molecular mass (hydrated sodium sulfate) =

= (22.990×2)+(32.06)+(15.999×4)+[0.318...((1.008×2)+(15.999))]

= 147.77415g/mol

Answer:

Answer is in the attachment:

x=10

Explanation:

Answer:

Because it went through a chemical change which changes its atomic form