How many moles are contained in 15.01 grams of argon?

Answer 1

Moles = mass in grams / atomic weight

So moles in 15.01 g of Ar = 15.01 / 39.948 = 0.38 moles

Answer 2

To find the number of moles in 15.01 grams of argon, you need to divide the given mass by the molar mass of argon. The molar mass of argon is approximately 39.95 g/mol. So, the number of moles of argon in 15.01 grams would be 15.01 g / 39.95 g/mol = 0.376 moles.