The recommended maintenance dose of penicillin is 1mg/kg/hr by injection. If 10ml of a 25mg of penicillin is added to a 100ml bottle of saline, what

a) Is the total volume of the solution?
b) Is the concentration of penicillin in the solution?
c) Is the recommended maintenance dose for a 70kg patient?
d) Is the purpose of adding penicillin to saline?