To make a $1.50 \mathrm{M}$ solution of HCl, we need $1.50$ moles of HCl per liter of solution. Therefore, to make $2.00 \mathrm{L}$ of $1.50 \mathrm{M}$ solution, we need:
$$
1.50 \mathrm{~mol/L} \times 2.00 \mathrm{~L} = 3.00 \mathrm{~mol}
$$
So we need
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