What masses of NaCL and H2O are present in 160.0 g of 12 mass % solution of NaCL?

Answer 1

We know that the NaCl solution is 12% by mass of the total mass of solution. We also know that the total mass of the solution is 160.0 g. Thus, to find the mass of NaCl and H₂O, we simply multiply 160.0 g by 12% and 88%, respectively. Doing this, we get:

m_NaCl = 160.0 g * 0.12 = 19.2 g

m_H2O = 160.0 g * 0.88 = 140.8 g