Question

How many moles of phosphorus are in a sample of 40.4 grams of phosphorus I NEED HELP FAST

Answer 1

1.30 mol P

Step-by-step explanation:

take what is given to you (40.4g). now divide it by the molar mass of the asked element (phosphorus = 30.97g/mol)

40.4g P / 30.97g/mol P = 1.30 mol P

hope this helps :)