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chemistry

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In the reaction Mg(s) + 2HCl(aq) d H¿(g) + MgCl¿(aq), how many moles of hydrogen gas will be produced from 250.0 milliliters of a 3.0 M HCl in an excess of Mg?

  • chemistry - ,

    I can't decipher the funny symbols. I assume you meant to write
    Mg + 2HCl ==> H2 + MgCl2.
    mols HCl = M x L = 3.0 x 0.250 = ?
    mols H2 = 1/2 that (from the coefficients)

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