Asked by britt

A sample of barium contains 3.20g of barium. How many atoms of barium are contained in the sample?

Answers

Answered by DrBob222
How many mols do you have? That's mols = grams/molar mass = approx 0.023 but you need to do it more accurately.
Then 1 mol contains 6.02E23 atoms. So 0.023 mols will contain ...... atoms.
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