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Calculate the number of calcium ions in 5.6g of calcium oxide?

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asked Dec 7, 2012 in Measurements by anonymous
   

1 Answer

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5.6grams CaO x (1mol CaO/56.08gCaO) x (1mol O/1mol CaO0 x (6.022x10^23atoms of O/1mol of O) = 6.0x10^22 of Ca ions O.

Sig figs=2

All the units cancel out except for atoms of Ca.
answered Aug 20, 2013 by bbrown Inquisitive Expert (97,580 points)

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