1) A solution is prepared by dissolving 5.02 g of KNO3 in 95.0 g of water. Calculate the following:
a) Mole fraction of the solute and the solvent
b) % mass of the solute
c) Concentration of solution in ppm
2) What is the mass in grams of KCl present in 23.0 g KCl of 12.50 KCl solution?
1)0.01 and 0.99
2)5.02%
3)5.02 ×104=5020ppm
4)2.875g
Comments
Leave a comment