Chemistry

Calculate the number of moles of cacl2 that can be obtained from 25g of lime stone(caco3) in the presence of excess hydrogen chlorine

asked by Khelessat
  1. find moles of limestone ... divide mass (25g) by molar mass of CaCO3

    since CaCl2 and CaCO3 both contain one mole of Ca per mole of compound
    ... you have your answer

    posted by Scott
  2. molar mass of CaCl2=111g. To get the number of moles of CaCl2, divide the reacting mass by the molar mass that is, 25g/111g

    posted by Isaac

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