Question

1.) You have 100 ml each of 400 mg/ml sodium phosphate, 250 mg/mlsodium chloride, and 100 mg/ml potassium nitrate. You want to makeone liter of a solution containing 10 mg/ml sodium phosphate, 10mg/ml sodium chloride, and 10 mg/ml potassium nitrate. How much ofeach starting solution do you need to use, and how much water doyou need to add?

2.) You have 100 ml each of 50 mg/ml human chorionic gonadotropin,25x HCG buffer, and 400 mM potassium chloride. You want to make oneliter of a solution that is 1 mg/ml human chorionic gonadotropin,1x HCG buffer, and 40 mM potassium chloride How much of eachstarting solution do you need to use, and how much water do youneed to add?