Molar Mass Practice

Molar Mass Practice

Assessment

Interactive Video

Chemistry, Science, Mathematics

9th - 10th Grade

Hard

Created by

Patricia Brown

FREE Resource

The video tutorial introduces the concept of molecular mass, explaining its definition and how it is calculated. The instructor provides examples of calculating molecular mass for various compounds, including complex ones with water of crystallization. The video aims to make chemistry engaging and encourages viewers to practice more problems for better understanding.

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the definition of molecular mass?

The volume of a molecule in liters

The weight of a molecule in kilograms

The mass of all atoms in a molecule measured in AMU

The mass of a single atom in grams

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How is an atomic mass unit (AMU) defined?

1/16 the mass of an oxygen atom

1/14 the mass of a nitrogen atom

1/12 the mass of a carbon-12 isotope

1/12 the mass of a hydrogen atom

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following terms are calculated in the same manner?

Molecular mass and atomic number

Molar mass and molecular weight

Formula mass and atomic radius

Molecular weight and electron affinity

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the molecular mass of carbon dioxide (CO2)?

16 AMU

32 AMU

44 AMU

28 AMU

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How many atoms of oxygen are present in sulfuric acid (H2SO4)?

3

2

5

4

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the molecular mass of glucose (C6H12O6)?

160 AMU

200 AMU

150 AMU

180 AMU

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the term for water molecules associated with a compound?

Hydration

Water of crystallization

Hydrolysis

Dehydration

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