The formula to find moles is:
\[
\text{Moles} = \text{Molarity} \times \text{Volume (L)}
\]
Given that the volume of HCl is 49.90 mL, we first convert this to liters:
\[
49.90 \, \text{mL} = 0.04990 \, \text{L}
\]
Now, we can calculate the moles of
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