JUST 2 CHEM Q !

1- A 230.-mL  sample of a 0.275-M  CaCl2  solution is left on a hot plate overnight; the following morning, the solution is 1.10   . What volume of water evaporated from the 0.275 M CaCl2  solution?

 

 

 

2-  A 500.0m L  sample of 0.200 M    sodium phosphate is mixed with 400.0 mL   of 0.289 M  barium chloride. What is the mass of the solid produced?