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3 years ago

Consider the equation below. N2 + 3H2 -> 2NH3 What is the mole ratio of hydrogen to ammonia?

Chemistry

2 answers:

kumpel [21]3 years ago

7 0

Answer:

3:2

Explanation:

Crank3 years ago

4 0

The answer is: C. 3 : 2.

Balanced chemical reaction: 3H₂ + N₂ → 2NH₃.

From chemical reaction: n(H₂) : n(NH₃) = 3 : 2.

Coefficients with the lowest ratio indicate the relative amounts of substances in a reaction.

Coefficient in fron of hydrogen is 3 and coefficient in fron ammonia is 2.

Coefficients are important to prove the law of conservation of mass.

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3 years ago

A solution is created by dissolving 13.0 grams of ammonium chloride in enough water to make 295 mL of solution. How many moles o

Masja [62]

Answer:

(a) Moles of ammonium chloride = 0.243 moles

(b) $Molarity_{ammonium\ chloride}=0.824\ M$

Explanation:

(a) Mass of ammonium chloride = 13.0 g

Molar mass of ammonium chloride = 53.491 g/mol

The formula for the calculation of moles is shown below:

$moles = \frac{Mass\ taken}{Molar\ mass}$

Thus,

$Moles= \frac{13.0\ g}{53.491\ g/mol}$

Moles of ammonium chloride = 0.243 moles

(b) Moles of ammonium chloride = 0.243 moles

Volume = 295 mL = 0.295 L ( 1 mL = 0.001 L)

$Molarity=\frac{Moles\ of\ solute}{Volume\ of\ the\ solution}$

$Molarity_{ammonium\ chloride}=\frac{0.243}{0.295}$

$Molarity_{ammonium\ chloride}=0.824\ M$

Volume = ?

Molarity = 0.824 M

$Molarity=\frac{Moles\ of\ solute}{Volume\ of\ the\ solution}$

$0.824\ M=\frac{0.0500}{Volume}$

Volume = 0.05 / 0.824 L = 0.06068 L = 60.68 mL

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3 years ago

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kap26 [50]

Answer:

A & B

Explanation:

4 0

4 years ago

Read 2 more answers