Question

Calculate the molarity of a 150 g NaCl in 250 ml solution.

Answer 1

Answer: 10.3 mol/l

Explanation: Molality = concentration c = n/V

Amount of substance n = m/M = 150 g / 58.44 g/mol  =

2,5667 mol . c = 2.5667 mol / 0.25 l = 10.2669 mol/l

c =