Question

A saline solution has 1.9 grams of NaCI in 100 mL of solution. Calculate the molarity

Answer 1

Answer: Molality = concentration = 0,33 mol/l

Explanation: Concentration c = n/V and n = m/M

M = 55,44 g/mol and m = 1.9 g , V = 0.100 l

c = m/(MV)