# Molarity Calculation?

## To prepare 50.0mL of 4.0M Nac solution, how many grams of solute and mL of solvent do you need? (Hint: 1 mol NaCl= 58.44g) Could you explain how to get the answers and the equation i'm supposed to use?

volume of solution=50ml=$\frac{1}{20} = 0.05$ L
so, $M = {n}_{s o l u t e} / \text{volume of solution( in L)}$
$4 = \frac{\frac{W}{58.5}}{0.05}$
${W}_{s o l u t e} = 11.7$ gm