Avogadro's Number and Zinc Conversions

Avogadro's Number and Zinc Conversions

Assessment

Interactive Video

Chemistry

9th - 10th Grade

Hard

Created by

Liam Anderson

FREE Resource

This video tutorial explains how to convert grams of zinc to moles and then to atoms. It begins with dividing the given grams by the molar mass of zinc to find moles. Then, it uses Avogadro's number to convert moles to atoms. The video concludes with a recap of the conversion process.

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9 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the first step in converting grams of zinc to atoms?

Multiply by Avogadro's number

Divide by the atomic mass

Add the atomic mass

Subtract the atomic mass

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the atomic mass of zinc used for in the conversion process?

To find the number of atoms

To determine the density

To convert grams to moles

To calculate the volume

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the purpose of dividing by the atomic mass in the conversion process?

To calculate the density

To convert grams to moles

To determine the volume

To find the number of atoms

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How many moles of zinc are obtained from 61.33 grams?

1.02 moles

0.61 moles

1.33 moles

0.94 moles

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is Avogadro's number used for in this context?

To convert grams to liters

To convert moles to atoms

To convert atoms to moles

To convert moles to grams

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How many atoms are in 0.94 moles of zinc?

5.65 x 10^23 atoms

7.65 x 10^23 atoms

6.02 x 10^23 atoms

4.02 x 10^23 atoms

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following is a correct statement about Avogadro's number?

It is used to convert moles to grams

It is used to convert grams to moles

It is used to convert moles to atoms

It is used to convert atoms to grams

8.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the significance of Avogadro's number in chemistry?

It represents the number of atoms in one mole

It represents the number of grams in one mole

It represents the number of ions in one liter

It represents the number of molecules in one gram

9.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the final result of converting 61.33 grams of zinc to atoms?

7.65 x 10^23 atoms

5.65 x 10^23 atoms

6.02 x 10^23 atoms

4.02 x 10^23 atoms