Molar Mass Calculations and Concepts

Molar Mass Calculations and Concepts

Assessment

Interactive Video

Chemistry

9th - 10th Grade

Hard

Created by

Olivia Brooks

FREE Resource

The video tutorial explains how to calculate the molar mass of calcium acetate. It begins by identifying the atomic mass of calcium from the periodic table. Then, it calculates the molar mass of the acetate ion, which is multiplied by two since there are two acetate ions in calcium acetate. The tutorial combines these values to find the total molar mass of calcium acetate, discussing potential differences due to rounding.

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the first step in calculating the molar mass of calcium acetate?

Determine the number of acetate ions.

Find the molar mass of oxygen.

Identify the formula for calcium acetate.

Calculate the molar mass of hydrogen.

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Where do you find the molar mass of calcium?

On a molecular model.

In a chemistry textbook.

On the periodic table.

In a scientific journal.

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How many carbon atoms are present in one acetate ion?

One

Two

Four

Three

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the molar mass of hydrogen used in the calculation?

1.01 grams per mole

40.08 grams per mole

16.00 grams per mole

12.01 grams per mole

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How many acetate ions are considered in the calculation for calcium acetate?

One

Two

Three

Four

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the total molar mass of the acetate ion before multiplying by two?

12.01 grams per mole

158.18 grams per mole

59.05 grams per mole

40.08 grams per mole

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the final molar mass of calcium acetate?

59.05 grams per mole

40.08 grams per mole

158.18 grams per mole

12.01 grams per mole

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