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Posted by on Tuesday, October 19, 2010 at 7:51pm.

When hydrochloric acid reacts with magnesium metal, hydrogen gas and aqueous magnesium chloride are produced. What volume of 9.0 M HCl is required to react completely with 5.00 g of magnesium?

  • Chemistry - , Tuesday, October 19, 2010 at 8:28pm

    Mg + 2HCl ==> H2 + MgCl2

    Convert 5.00 g Mg to moles. moles = grams/molar mass

    Using the coefficients in the balanced equation, convert moles Mg to moles HCl.

    You know moles HCl = M x L.
    You moles and M, solve for L.

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