Question

Mix 2 grams of sugar and 5 grams of salt in a beaker. Add 43ml water and stir to disolve solids. What is the concentration of solution in terms of percent w/w(weight/weight) with respect to sugar and salt?

Answer 1

% = (m_solute / m_solution) x 100

Water has density of 1 g/ml. So that 43 ml equal to 43 g.

% = (2 + 5) / (43 + 2 + 5) x 100 = 14%