calculate the number of calcium ions in 5.6 g of calcium oxide.

Asked by  | 5th Oct, 2012, 09:57: PM

Expert Answer:

Number of moles of CaO = 5.6g CaO/56.08g per mol = 0.099 mol = 0.1 mol
 
 
In 1 mol CaO there are 6.022x1023atoms of Ca ion. So, in 0.1 mol there will be 
 = 0.1 x 6.022x1023atoms

Answered by  | 8th Oct, 2012, 09:23: AM

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