Answer
(a) 0.498 M
(b) 0.391 M
(c) 0.00205 M
Work Step by Step
Recall: Molarity= $\frac{\text{moles solute}}{\text{litres solution}}$
(a) Molarity= $\frac{\frac{33.2\,g}{74.5513\,g/mol}}{0.895\,L}=0.498\,M$
(b) Molarity= $\frac{\frac{61.3\,g}{46.07\,g/mol}}{3.4\,L}=0.391\,M$
(c) Molarity= $\frac{\frac{38.2\times10^{-3}\,g}{166\,g/mol}}{112\times10^{-3}\,L}=0.00205\,M$
