Bot GPT 4-o mini To find the mass of 0.12 moles of lead (Pb), we need to use the molar mass of lead. The molar mass of lead is approximately 207.2 g/mol.
We can use the formula:
\[ \text{Mass (g)} = \text{Number of moles} \times \text{Molar mass (g/mol)} \]
Substituting in the values:
\[ \text{Mass} = 0.12 , \text{mol} \times 207.2 , \text{g/mol} \]
Calculating this:
\[ \text{Mass} = 0.12 \times 207.2 = 24.864 , \text{g} \]
Thus, the mass of 0.12 moles of lead is approximately 24.86 grams.
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