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To find the number of atoms in 100 grams of lead, we first need to determine the molar mass of lead, which is approximately 207.2 g/mol. Using Avogadro's number (approximately (6.022 \times 10^{23}) atoms/mol), we can calculate the number of moles in 100 grams: (100 , \text{g} \div 207.2 , \text{g/mol} \approx 0.482 , \text{mol}). Multiplying the number of moles by Avogadro's number gives approximately (0.482 , \text{mol} \times 6.022 \times 10^{23} , \text{atoms/mol} \approx 2.90 \times 10^{23} , \text{atoms}) of lead in 100 grams.

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2mo ago

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