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    bridog123's Avatar
    bridog123 Posts: 1, Reputation: 1
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    #1

    Jan 24, 2014, 10:43 AM
    If 127g of CuO r allowed to react many with 7.50g of h2 how g of copper are produced?
    I need help with chemistry
    neodarwinian's Avatar
    neodarwinian Posts: 74, Reputation: 1
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    #2

    Jan 27, 2014, 02:35 PM
    CuO + H2 ---> Cu + H2O

    Simple stoichiometry here as all is one to one. Find moles of reactants, the H2 should be limiting ( but check----found moles less than coefficient moles, but H2 really light ) and then just drive the reactant against the product with that one to one mole ratio followed by the mass of the product you desire to find.
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