1) what type of solution (saturated or unsaturated ) is present for Pb(NO3)2 if at approximately 25 degrees c ,65 grams of the substance are present in the 100 grams of H2O

2)40 grams of KCl are dissolve in 100 grams of H2O at 10 degrees c how many grams will not dissolve

3)how many grams of H2O are needed to dissolve 50 grams of KClO3 at 70 degrees C

4)how many grams of K2Cr2O7 will dissolve in 75 grams of H2O at 90 degrees C

5) 59 grams of CaCl2 are dissolve in 100 grams of water at approximately 25 degrees c how many more grams of CaCl2 must be added to saturate the solution