In: Chemistry
What volume of 0.20MNaCl(aq)0.20 M \mathrm{NaCl}(a q)0.20MNaCl(aq) contains 10.0 g10.0 \mathrm{~g}10.0 g of NaCl\mathrm{NaCl}NaCl (molar mass 58 g/mol58 \mathrm{~g} / \mathrm{mol}58 g/mol )?
Molarity =ωm×V=\frac{\omega}{m \times V}=m×Vω
W ⇒\Rightarrow⇒ mass of soluteren
m=m=m= molar mass solute
V = Volume of solution (L)(L)(L)
Molarity =0.20M/L=0.20 M / \mathrm{L}=0.20M/L
w=10⋅0 gw=10 \cdot 0 \mathrm{~g}w=10⋅0 g
m=58g/molm=58 g/molm=58g/mol
v=10.058×0.2=0.862L=\frac{10.0}{58 \times 0.2} = 0.862L=58×0.210.0=0.862L