a sample of tin (atomic mass 118.69) contains 3.01x10 to the power of 23 atoms has a mass of...?

0 ⤊

a sample of tin (atomic mass 118.69) contains 3.01x10 to the power of 23 atoms has a mass of...?

is it...
3.01g,
11g,
72.6g, or
59.3

2006-11-19 12:41:11 · 1 answers · asked by Anonymous in Science & Mathematics ➔ Chemistry

1 answers

3.01E23 atoms of tin is about one-half mole (one mole is Avogadro's number -- 6.023E23 -- of anything). So, which of the numbers you give is roughly one-half of the atomic weight of tin -- 118.69 grams/mole?

2006-11-19 12:46:33 · answer #1 · answered by Dave_Stark 7 · 0⤊ 0⤋