What is the mass in grams of 1.02X10^24 molecules of NaCl?

Answer 1

1 mole contains 1.02 x 10^23 molecules.

Hence you can calculate the number of moles 1.02 x 10^24 molecules represents.

If you calculate the mass in grams of one mole of NaCl from the atomic masses, you can find the answer.

Answer 2

DrRuss made a typo above; he intended, I'm sure, to write 1 mol contains 6.02 x 10^23 molecules.

Answer 3

Ooops thank you DrBob!