Stoichiometry Molecules

Stoichiometry Molecules

10th Grade

15 Qs

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Stoichiometry Molecules

Stoichiometry Molecules

Assessment

Quiz

Science

10th Grade

Practice Problem

Hard

NGSS.HS-PS1-7, 2, NGSS.MS-PS1-5

Standards-aligned

Created by

Lisa Thompson

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15 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

A sample of Sodium chloride (NaCl) has 5.7 x 1024 formula units. How many moles of Sodium chloride are in the sample?

3.43 x 1024 mol NaCl

34.3 x 1023 mol NaCl

9.47 mol NaCl

333.1 mol NaCl

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

How many molecules of Carbon tetrachloride (CCl4) are in 300 grams of CCl4?

2.78 x 1028 molecules CCl4

3.24 x 1022 molecules CCl4

1.174 x 1024 molecules CCl4

1.95 molecules CCl4

Tags

NGSS.HS-PS1-7

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

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Tags

NGSS.HS-PS1-7

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

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Tags

NGSS.HS-PS1-7

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

Media Image
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Media Image
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Tags

NGSS.HS-PS1-7

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

6.02 x1023 molecules

1.2 x 1024 molecules

3.01 x 1023 molecules

1.8 x 1024 molecules

none of the above

Answer explanation

1 mole of H2 produces 1 mole of H2SO4, and 1 mole = 6.02 x1023 molecules

Tags

NGSS.HS-PS1-7

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

6.02 x1023 atoms

1.2 x 1024 atoms

3.01 x 1023 atoms

1.8 x 1024 atoms

none of the above

Answer explanation

1 mole of H2, 1 mole = 6.02 x1023 atoms but Hydrogen packs two atoms per molecule because it is diatomic. 2 atoms per molecule

Tags

2

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