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alysha-winona.96

  • 3 years ago

what massof calcium oxide CaO,forms when 25g calcium carbonate CaCO3 decomposes on heating?

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  1. aaronq
    • 3 years ago
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    Moles of CaCO3 = m/MW= (25g)/(100g/mol) = 0.25 moles CaCO3 -> CaO + CO2 Coefficients 1 1 1 Moles 0.25 x x Ratio: CaCO3:CaO 1:1 0.25 moles of CaO formed Mass CaO = (MW)(moles)= (56g/mol)(0.25)= 14g

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