Q: The atomic mass of potassium is 39.1. What is the mass of 6.02 1023 atoms of potassium?

A: The mass of 6.02 ? 1023 atoms of potassium is 39.1 grams.6.02x10^23= 1 mol of an atom
1 mol of an atom = an atoms atomic mass in grams
therefore using this conversion factor:
[(6.02x 10^23) atoms K] x [1mol K / (6.02x 10^23) atoms] x (39.1g K/ 1 [ mol) = 39.1 g K
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