Question

Could you show me how to convert this problem?

A physician has ordered 5600 mg of penicillin V, intramuscularly. If penicillin V were available as 0.80 g/mL of solution, how many milliliters would you need to give?

Answer 1

The availability of pencillin V is 0.80 g/mL

                                            = 0.80 x10³ mg /mL                       since 1 g = 10³ mg

                                            = 800 mg/mL

So 800 mg contained in 1 mL of the solution

    5600 mg contained in M mL of the solution

                M = (5600x1) / 800

                    = 7 mL

Therefore the required volume of penicillin solution is 7 mL