Ameasure of how constantly a result is determined by repeated evalations is called

Anurse practitioner prepares an injection of promethazine, an antihistamine used to treat allergic rhinitis. if the stock bottle is labeled 25 mg/ml and the order is a dose of 11.0 mg , how many milliliters will the nurse draw up in the syringe?

How many molecules are found in 1.32 mol of nacl?

How would the number of moles (n) of o2 change if the atmospheric pressure doubled but all other variables stayed the same