This is one of my test questions and want to know if i got it right. I'm too anxious?

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Does a 3.6g sample of lithium contain 3.1*10(exp 23) atoms?

2006-10-12 16:55:03 · 4 answers · asked by Anonymous in Science & Mathematics ➔ Chemistry

I multiplied 3.6 by one mole and divided it by the mass of lithium which is 6.941g. I got 0.52 rounded and then I mulitplied it by avogradro's.

2006-10-12 16:58:58 · update #1

the molar mass of lithium is about 6.94g/mol
so convert the mass to moles
then multiply by 6.022*10^23

2006-10-12 16:56:48 · answer #1 · answered by Greg G 5 · 0⤊ 0⤋

yea

2006-10-13 02:32:44 · answer #2 · answered by Anonymous · 0⤊ 0⤋

yup

2006-10-12 23:58:47 · answer #3 · answered by dreson k 4 · 0⤊ 0⤋

2006-10-13 00:17:45 · answer #4 · answered by mr.phattphatt 5 · 0⤊ 0⤋