3.011 x 1023 ions of ca+2 find mole of following
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we know that CaCo3 contains 1 mole of both Ca2+and Co3
_
2 ions that is 6.02*10 both of the ions.
molecules = Given mass
__________
molecular mass
therefore, 1 upon 2 required mass of CaCo3 upon 100
required mass of CaCo3=50g
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