Question

What mass of NaCl is needed to produce 500 mL of a 2.0 mol/L solution?

Answer 1

What mass of NaCl is needed to produce 500 mL of a 2.0 mol/L solution?

Using this data we can calculate quantity of NaCl solution (mol)

$$\nu = c * V$$ $$\nu = 2 * 0.5 = 1 \, \text{mol}$$

Mass (g) can be calculated using following equation :

$$m = \nu * M$$ $$m(\text{NaCl}) = 58.5 * 1 = 58.5 \, g$$ $$m(\text{NaCl}) = 58.5 \, g$$