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141 Mole Worksheet Key Grossmont College

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James Moore
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Mass and Moles Worksheet

1. How many moles in 34.2 g of sulfur?

34.2 𝑔 𝑆 Γ—
1 π‘šπ‘œπ‘™ 𝑆
32.07 𝑔 𝑆
=1.07 π‘šπ‘œπ‘™ 𝑆

2. How many grams in 1.20 moles of carbon?

1.20 π‘šπ‘œπ‘™ 𝐢 Γ—
12.01 𝑔 𝐢
1 π‘šπ‘œπ‘™ 𝐢
= 14.4 𝑔 𝐢

3. How many atoms in 3.91 moles of sodium?

3.91 π‘šπ‘œπ‘™ π‘π‘Ž Γ—
6.02 Γ— 10
23
π‘Žπ‘‘π‘œπ‘šπ‘  π‘π‘Ž
1 π‘šπ‘œπ‘™ π‘π‘Ž
= 2.35 Γ— 10
23
π‘Žπ‘‘π‘œπ‘šπ‘  π‘π‘Ž

4. How many atoms in 45.22 moles of strontium?

45.22 π‘šπ‘œπ‘™ π‘†π‘Ÿ Γ—
6.02 Γ— 10
23
π‘Žπ‘‘π‘œπ‘šπ‘  π‘†π‘Ÿ
1 π‘šπ‘œπ‘™ π‘†π‘Ÿ
= 2.72 Γ— 10
25
π‘Žπ‘‘π‘œπ‘šπ‘  π‘†π‘Ÿ

5. How many molecules in 31 g of chlorine gas?

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141 Mole Worksheet Key Grossmont College

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