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How many moles of atoms are present in 5 moles of Ca(HCO3)2 ?

2007-01-26 07:34:42 · 2 answers · asked by beachbum 2 in Science & Mathematics ➔ Chemistry

I counted them up and got it wrong!

2007-01-26 07:40:42 · update #1

Count 'em up!

Ca(HCO3)2 has:

1 mole Ca
2 moles H
2 moles C
6 moles O

1+2+2+6 = 11 moles of atoms in one mole

11 * 5 = 55

Done!

2007-01-26 07:39:33 · answer #1 · answered by Jerry P 6 · 0⤊ 0⤋

About 3*10^25atoms. If you need the exact number it's

5 moles (6.023*10^23molecules/mole) * 11 atoms/molecule = atoms

2007-01-26 15:41:39 · answer #2 · answered by Dr Dave P 7 · 0⤊ 0⤋