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The mole concept

Authored by Neslihan Batmaz

Chemistry

10th Grade

NGSS covered

The mole concept
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12 questions

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1.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

What is the mass of 6.02 x 1023 platinum atoms? Round to the nearest hundredths place.

30.97 g

106.42 g

140.91 g

195.09 g

2.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

What is the mass of 6.02 x 1023 platinum atoms? Round to the nearest hundredths place.

30.97 g

106.42 g

140.91 g

195.09 g

3.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

What is the mass of 6.02 x 1023 platinum atoms? Round to the nearest hundredths place.

30.97 g

106.42 g

140.91 g

195.09 g

4.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

What is the mass of 6.02 x 1023 platinum atoms? Round to the nearest hundredths place.

30.97 g

106.42 g

140.91 g

195.09 g

5.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Chalk is mostly made of calcium carbonate, CaCO3. If it took 48.6 g of chalk to write your name on the sidewalk, how many moles of calcium carbonate does your name contain?

0.486 mol

0.714 mol

1.40 mol

2.06 mol

Tags

NGSS.HS-PS1-7

6.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

A scientists analyzed an unknown sample and determined that it contained 5 moles of oxygen and 2 moles of nitrogen? Which of the following would be its molecular formula?

N2O5

N4O

NO

O2N5

7.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

What is the molar mass of carbon?

6.0 g/mol
12.0 g/mol
22.4 g/mol
6.02 x 1023 g/mol

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