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Thread: alka seltzer problem

  1. #1 alka seltzer problem 
    New Member
    Join Date
    Sep 2006
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    Hey guys, this problem i have is totally blowing me away, i honestly have no idea where to begin:

    The first question was: A beaker that contains 35.00 mL of water weighs 84.85 g, and the mass of an Alka Seltzer tablet weighs 2.95 g. Addition of the tablet into the beaker of water causes the Alka Seltzer tablet to produce carbon dioxide gas. After the reaction, the mass of the beaker, water, and the remains of the tablet weighs 87.38 g. What was the mass of the liberated carbon dioxide gas? It's .42g


    Then...

    The mass of carbon dioxide produced from run "A" is 1.52 g. Based on the balanced equation:

    HCO3–(aq) + H+(aq) -> H2O(l)+CO2(g)

    What is the number of moles of the reacted sodium bicarbonate from the single Alka Seltzer tablet?

    How do i go about doing this?


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