In: Chemistry
What volume of \(0.20 M \mathrm{NaCl}(a q)\) contains \(10.0 \mathrm{~g}\) of \(\mathrm{NaCl}\) (molar mass \(58 \mathrm{~g} / \mathrm{mol}\) )?
Molarity \(=\frac{\omega}{m \times V}\)
W \(\Rightarrow\) mass of soluteren
\(m=\) molar mass solute
V = Volume of solution \((L)\)
Molarity \(=0.20 M / \mathrm{L}\)
\(w=10 \cdot 0 \mathrm{~g}\)
\(m=58 g/mol\)
v\(=\frac{10.0}{58 \times 0.2} = 0.862L\)