# How many moles of solute are contained in a 250.0 mL solution with a concentration of 2.5 M?

Approx. $0.63 \cdot m o l$
${n}_{\text{moles}}$ $=$ $\text{Concentration"xx"Volume}$
$2.5 \cdot m o l \cdot \cancel{{L}^{-} 1} \times 250.0 \times {10}^{-} 3 \cancel{L}$ $=$ ??mol