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    makoli3's Avatar
    makoli3 Posts: 1, Reputation: 1
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    #1

    Nov 25, 2008, 07:41 AM
    how to solve this equation
    How many moles of Na2Co3 would be needed to react with 500 mL of 0.350 M H2SO4 solution?
    Na2Co3 + H2SO4-- Na2SO4 + CO2 + H2O
    harum's Avatar
    harum Posts: 339, Reputation: 27
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    #2

    Nov 25, 2008, 01:20 PM
    To solve this problem answer these questions:

    1. How many moles of Na2Co3 are needed to react with 1 mole of H2SO4 according to THIS equation? Hint: according to your equation one molecule of Na2Co3 would react with one molecule H2SO4.

    2. How many moles of pure H2SO4 are contained in 500 mL of 0.350 M solution of H2SO4?

    After you answer these simple questions, you solve the problem.
    beierle's Avatar
    beierle Posts: 1, Reputation: 1
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    #3

    Dec 21, 2008, 07:32 PM

    Determine how many grams of KCl must be weighed to prepare 500 mL of a 2.5 molar KCl solution
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