# In 1L of a 3M solution of sodium chloride, how many grams of sodium chloride are in the solution?

Apr 5, 2017

$\text{175.35 g}$

#### Explanation:

A $\text{3 M}$ solution has $3$ moles of solute per litre.

The mass of one mole of $\text{NaCl}$ equals the MW of $\text{NaCl}$

$\text{MW" = 35.45 + 23 = "58.45 g/mol}$

The mass of $3$ moles is

$\text{58.45 g/mol" xx "3 mol" = "175.35 g NaCl}$

or $\text{200 g}$ rounded to one sigfig.