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Homework Help: Finding the precipitate of the reaction of KBr with AgNO3

  1. Sep 20, 2007 #1
    1. The problem statement, all variables and given/known data
    0.658 g of potassium bromate and 0.562 g of silver nitrate are added to 388 mL water. Solid silver bromate is formed, dried, and weighted. What is the mass, in g, of the precipitated silver bromate? Assume silver bromate is completely insoluble.

    2. Relevant equations

    3. The attempt at a solution
    The only actual problem I have with this question is whether or not the 388 mL water comes into play with the calculations. If it doesn't, then I pretty much just find the moles of each reagent and find the limiting reagent, which can then be used to find the mass of the precipitate based on the molar ratio. But if I somehow need to incorporate the water variable into the calculations, then I'm a bit confused.
  2. jcsd
  3. Sep 20, 2007 #2


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    Science Advisor
    Homework Helper

    I can't see how the amount of water comes in - other than that your method is fine.
    Sometimes the amount of water is there because this is/was part of a longer question where you had to work out something else as well.
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