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Mole Conversions Review

Authored by Nancy Rodriguez

Chemistry

10th - 12th Grade

Used 8+ times

Mole Conversions Review
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10 questions

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1.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

How many moles of magnesium are in 3.01x1022 atoms of magnesium?

5.00x1044 moles Mg
0.050 moles Mg
1.81x1046 moles Mg
5 moles Mg

2.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

How many grams of carbon are in 0.63 moles of carbon?

3.79x1023 g C
.0524 g C
7.57 g C
.800 g C

3.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

How many molecules of O2 are in 0.470 grams of oxygen gas?

8.00 molecules O2
8.84x1021 molecules O2
7.8 molecules O2
8.842x1021 molecules O2

4.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

What is the molar mass of NH3?

17.031 g/mol NH3
17 g/mol NH3
14.007 g/mol NH3
18.99 g/mol

5.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Molar mass is the number of moles of a substance that would have  mass of 1 gram.

True
False

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

How many molecules are in 3.6 grams of NaCl?

0.06
1.0x1021
1.3x1026
3.7x1022

7.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Which element has a molar mass of 30.974 g/mol?

Potassium
Phosphorus
Gallium
Palladium

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