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3 years ago

Balance equation N2Cl4 + CH4

Chemistry

1 answer:

labwork [276]3 years ago

3 0

Answer:

CH₄ + N₂Cl₄ → CCl₄ + N₂ + 2H₂

Explanation:

Chemical equation:

CH₄ + N₂Cl₄ → CCl₄ + N₂ + H₂

Balance chemical equation:

CH₄ + N₂Cl₄ → CCl₄ + N₂ + 2H₂

Step one:

CH₄ + N₂Cl₄ → CCl₄ + N₂ + H₂

Left hand side Right hand side

C = 1 C = 1

H = 4 H = 2

Cl = 4 Cl = 4

N = 2 N = 2

Step 2:

CH₄ + N₂Cl₄ → CCl₄ + N₂ + 2H₂

Left hand side Right hand side

C = 1 C = 1

H = 4 H = 4

Cl = 4 Cl = 4

N = 2 N = 2

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Answer:

The molar concentration of this solution is 0.0463 mol/L

Explanation:

Step 1 : Data given

Mass of a nonelectrolyte solute = 2.69 grams

Volume of water = 345 mL = 0.345 L

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The osmotic pressure = 863 torr

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Step 2: Calculate the molar concentration of this solution

Π = i*M*R*T

⇒with Π = the osmotic pressure = 1.13553 atm

⇒with i = the van't Hoff factor of the nonelectrolyte solute = 1

⇒with M = the molar concentration = TO BE DETERMINED

⇒with R = the gas constant = 0.08206 L*atm/mol*K

⇒with T = the temperature = 299 K

1.13553 atm = 1 * M * 0.08206 L*atm/mol*K * 299 K

M = 1.13553 / (0.08206*299)

M = 0.0463 mol/L

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3 years ago

If you have 0.50 mol of ca, how many atoms are present?

Evgen [1.6K]

Answer is: there are 3.011·10²³ atoms of calcium.

n(Ca) = 0.50 mol; amount of substance(calcium).
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N(Ca) = n(Ca) · Na.
N(Ca) = 0.50 mol · 6.022·10²³ 1/mol.
N(Ca) = 3.011·10²³; number of calcium atoms.
The mole is an SI unit which measures the number of particles in substance. One mole is equal to 6.022·10²³ atoms.

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Answer: Option (E) is the correct answer.

Explanation:

A spontaneous reaction is defined as the process which tends to occur on its own. And, a non-spontaneous reaction is defined as a process for the completion of which we have to provide certain conditions.

For example, ice melting at $25^{o}C$ is spontaneous primarily due to the increase in molecular disorder (dispersal of matter). Also, melting of ice is taking place on its own without any external force.

It is not necessary that all exothermic reactions will be exothermic in nature.

Thus, we can conclude that the statement all exothermic reactions are spontaneous, is false.

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