You are a nurse, and the doctor asks you to administer a patient 55 milligrams (mg) of Codeine phosphate by subcutaneous injection. You have a 75 mg/mL liquid for injection. How many mL will you administer?

Question

You are a nurse, and the doctor asks you to administer a patient 55 milligrams (mg) of Codeine phosphate by subcutaneous injection.  You have a 75 mg/mL liquid for injection.  How many mL will you administer?

rock_mit182 · Answer

Rule of Three

rock_mit182 · Answer

hint:  you have to cancel out (mg) units, the answer must have units of ml

anonymous · Answer

Rule of Three?

rock_mit182 · Answer

We have : 1 mL per 75 mg of codeine phosphate,
                x ml  per 55 mg of  codeine .. .

rock_mit182 · Answer

is that make sense ?

rock_mit182 · Answer

$$1 mL /75 mg = x mL/55mg$$ solve for x

anonymous · Answer

Which compound, ethanol or DME has higher greater molecular polarity?