Stoichiometry and Molar Relationships

Stoichiometry and Molar Relationships

Assessment

Interactive Video

Chemistry, Mathematics, Science

9th - 12th Grade

Hard

Created by

Patricia Brown

FREE Resource

The video tutorial explains the industrial production of nitric acid, focusing on the catalytic oxidation of ammonia. It provides a balanced chemical equation and guides through stoichiometry and dimensional analysis to calculate the moles of NO and H2O formed from a given mass of ammonia. The tutorial emphasizes the importance of mole-to-mole relationships in chemical equations and ensures the correct use of significant figures.

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the first step in the industrial manufacture of nitric acid?

Synthesis of sulfuric acid

Electrolysis of water

Combustion of hydrogen

Catalytic oxidation of ammonia

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Why is it important to use a balanced chemical equation in stoichiometry problems?

To predict the temperature change

To accurately calculate the mole ratios

To ensure the reaction is safe

To determine the color of the reactants

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the first step in converting grams of ammonia to moles?

Multiply by the molar mass

Subtract the atomic masses

Add the atomic masses

Divide by the molar mass

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How many moles of NO are formed from 852 grams of ammonia?

25 moles

50 moles

75 moles

100 moles

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the relationship between moles of NH3 and moles of NO in the balanced equation?

2:1

4:4

4:2

1:1

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the next step after determining the moles of NH3?

Find the volume of NH3

Calculate the moles of H2O

Calculate the moles of NO

Determine the mass of NH3

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How many moles of H2O are formed from 852 grams of ammonia?

50 moles

25 moles

75 moles

100 moles

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