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Unit 3.1-3.3 Test practice

Authored by MICHELLE TOMBA

Science

11th Grade

NGSS covered

Used 2+ times

Unit 3.1-3.3 Test practice
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32 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Calculate the molar mass of H3PO4

97.994 g/mol

94.970 g/mol

101.018 g/mol

95.978 g.mol

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Calculate the molar mass of carbon tetrachloride

153.823 g/mol

47.464 g/mol

82.917 g/mol

118.370 g.mol

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Determine the number of moles present in 54.3 grams of CO2

1.23 mol

0.810 mol

1.23 g

0.810 g

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Determine the number of atoms present in 4.00 mol of Al.

2.41 x 1024 atoms

108 atoms

2.41 atoms

6.02 x 1023 atoms

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Convert 3.01 x 1023 atoms Al  to grams

13.5 g

1.23 g

27.0 g

0.456 g

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How many grams are in 2.20 mols of iron (II) nitride?

  1. 430. g

9.33 g

196 g

43.3 g

Tags

NGSS.HS-PS1-7

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How many atoms of hydrogen are in 1.55 moles?

9.33 x 1023 atoms

4.76 x 1024 atoms

6.02 x 10 23 atoms

2.57 x 1024 atoms

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