QuestionMay 19, 2026

3. How many moles is 2.80times 10^24 atoms of silicon?

3. How many moles is 2.80times 10^24 atoms of silicon?
3. How many moles is 2.80times 10^24 atoms of silicon?

Solution
4.2(256 votes)

Answer

4.65 \ \text{mol} Explanation 1. Use Avogadro's number Formula: 1 \ \text{mol} = 6.022 \times 10^{23} atoms. 2. Calculate moles \text{moles} = \frac{2.80 \times 10^{24}}{6.022 \times 10^{23}} = 4.65

Explanation

1. Use Avogadro's number <br /> Formula: $1 \ \text{mol} = 6.022 \times 10^{23}$ atoms. <br />2. Calculate moles <br /> $ \text{moles} = \frac{2.80 \times 10^{24}}{6.022 \times 10^{23}} = 4.65$
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