chemistry help asp!!!!!!!! asassasasas?

falconsmakemesadfalconsmakemesad
in Science & Mathematics

If 4 Mol. calcium carbide (CaC2) reats wih an excess of water, how many moles of acetylene (C2H2) will be produced

CaC2 +2 H2O - Ca(OH)2+C2H2

Comments

  • anonymousanonymous

    MM CaC2 = 64.1 g/mol

    MM H2O = 18 g/mol

    MM C2H2 = 26.02 g/mol

    MM Ca(OH)2 = 74.04 g/mol

    68g CaC2 / 64.1g/mol = 1.06 moles CaC2

    68g H2O / 18g/mol = 3.78 moles H2O

    CaC2 is your limiting reactant (you will run out of this first, therefore you can only make as much of the product as you have the CaC2 for it)

    The molar ratio of the equation is 1:2->1:1

    meaning 1 mole of CaC2 plus 2 moles of H2O will make 1 mole of C2H2 and 1 mole of Ca(OH)2

    Since you have 1.06 moles of C2H2, you can make no more than 1.06 moles of C2H2 and Ca(OH)2 each.

    1.06 moles yield of C2H2 * 26.02g/mol = 27.6 g yield of C2H2

    1.06 moles yield of Ca(OH)2 * 74.04g/mol = 78.5 g yield of Ca(OH)2

  • maplewalnutrocketmailcommaplewalnutrocketmailcom

    4, because they have have 1:1 mole ratio

  • anonymousanonymous

    oh is thr were u convert it to the other size..grade 10 sciece>

  • infamousinfamous

    only one

  • anonymousanonymous

    sdfdsf

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