Question

A solution is prepared with 50.0 g of HNO3 and 130.0 g of H2O. It has a density of 1.21 g/mL. What is the mass/volume percent?

Answer 1

Convert 180 g soln (130 g H2O + 50 g HNO3) to mL using density.
Then (grams solute/mL soln)*100 = % w/v.