What is the percent by mass % (m/m), concentration of Na2SO4 in a solution made by dissolving 7.6 g of Na2SO4 in solution made by dissolving 7.6 g of Na2SO4 in a enough water to give 87.3 of solution?
Answer: 8.7 (m/m) Na2SO4
But when I used my calculator the answer is 8.07? Can you show me the solution.
Thanks
