Molar Mass of Cobalt(II) Nitrate

Molar Mass of Cobalt(II) Nitrate

Assessment

Interactive Video

Chemistry

9th - 10th Grade

Hard

Created by

Lucas Foster

FREE Resource

The video tutorial explains how to calculate the molar mass of cobalt(II) nitrate using the periodic table. It details the process of identifying the atomic masses of cobalt, nitrogen, and oxygen, and then demonstrates the calculation step-by-step, including the use of parentheses and multiplication. The final molar mass of cobalt(II) nitrate is calculated to be 182.95 grams per mole.

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5 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the atomic mass of cobalt as used in the calculation of cobalt(II) nitrate's molar mass?

48.00 grams per mole

16.00 grams per mole

14.01 grams per mole

58.93 grams per mole

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which element's atomic mass is 14.01 grams per mole in the calculation?

Oxygen

Nitrogen

Hydrogen

Cobalt

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How many oxygen atoms are considered in the calculation of cobalt(II) nitrate's molar mass?

Two

Three

One

Four

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the result of multiplying the atomic mass of oxygen by three?

32.00 grams per mole

16.00 grams per mole

64.00 grams per mole

48.00 grams per mole

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the final molar mass of cobalt(II) nitrate?

100.00 grams per mole

58.93 grams per mole

182.95 grams per mole

200.00 grams per mole