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Posted by on Wednesday, May 27, 2009 at 6:48pm.

Calculate the mass of sodium chloride (NaCl) produced when 5.50 moles of solid sodium reacts in excess chlorine gas. (Hint: Start by writing a balanced chemical equation)

Please help me understand HOW to solve this problem.

  • Chemistry - , Wednesday, May 27, 2009 at 7:21pm

    start with a balanced equation. Then, notice the ratio of moles Na to moles of NaCl.


    then finally, convert the moles of NaCl to mass

    where formula mass of NaCl is the atomic mass of Na plus the atomic mass of chlorine atom.

    In my head, I get about 320grams of sodium chloride.

  • Chemistry - , Wednesday, May 27, 2009 at 7:28pm

    Thanks, after seeing this, I see how easy the problem actually was.

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