Stoichiometry Assessment

Stoichiometry Assessment

10th - 12th Grade

15 Qs

quiz-placeholder

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Stoichiometry Assessment

Stoichiometry Assessment

Assessment

Quiz

Chemistry

10th - 12th Grade

Easy

Created by

Wayground Content

Used 1+ times

FREE Resource

15 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

What is a mole ratio?

A mole ratio is a measure of the mass of a substance in grams.

A mole ratio is a conversion factor derived from the coefficients of a balanced chemical equation, used to relate the amounts of reactants and products.

A mole ratio is the number of molecules in a mole of a substance.

A mole ratio is a method to calculate the temperature of a chemical reaction.

2.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

What is a gram to mole conversion factor?

A method to convert temperature from Celsius to Fahrenheit.

A factor used to convert the mass of a substance (in grams) to the amount of substance (in moles) using its molar mass.

A technique for measuring the volume of a gas at standard temperature and pressure.

A calculation used to determine the density of a substance.

3.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

What is the relationship between moles and mass?

mass (g) = moles × molar mass (g/mol)

mass (g) = moles ÷ molar mass (g/mol)

mass (g) = moles + molar mass (g/mol)

mass (g) = moles - molar mass (g/mol)

4.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

What is stoichiometry?

A branch of physics that studies motion and forces.

The study of the properties and behavior of matter.

The branch of chemistry that deals with the calculation of reactants and products in chemical reactions based on the conservation of mass.

A method for measuring the temperature of chemical reactions.

5.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

What is the significance of significant figures in stoichiometry calculations?

The number of significant figures in the answer is arbitrary and does not affect the result.

The number of significant figures in the answer is based on the number of significant figures in the given data.

Significant figures are only important in theoretical calculations, not in practical applications.

Significant figures are used to round the final answer to the nearest whole number.

6.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

What is the role of molar mass in stoichiometry?

Molar mass is used to determine the volume of a gas at standard temperature and pressure.

Molar mass is used as a conversion factor to relate the mass of a substance to the number of moles in stoichiometric calculations.

Molar mass is irrelevant in stoichiometric calculations and is only used in molecular biology.

Molar mass is used to calculate the energy released in a chemical reaction.

7.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

What is the purpose of balancing a chemical equation?

To increase the speed of a chemical reaction.

To ensure that the law of conservation of mass is obeyed, meaning the number of atoms for each element is the same on both sides of the equation.

To determine the temperature at which a reaction occurs.

To identify the products of a chemical reaction.

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