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Acidic or Basic Products

  1. Dec 13, 2015 #1
    1. The problem statement, all variables and given/known data
    A student has 250ml of 1.5M HCl and 150ml solution of 2.0M Ba(OH)2. When he mixes the 2 together, is the combined solution acidic or basic?

    2. Relevant equations
    n=cv
    ph=-log[h]

    3. The attempt at a solution
    the limiting reactant is Ba(OH)2. it is .3 moles which means bacl2 will also be .3 moles
     
  2. jcsd
  3. Dec 13, 2015 #2

    symbolipoint

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    Which reactant is in excess?

    Change each quantity to moles. Write the reaction. Use ratios according to the written reaction and compare to the moles you started for each reactant.
     
  4. Dec 14, 2015 #3

    epenguin

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    H'm yes, but moles of what? When he writes the reaction as you suggest he may well see that it's not the moles of "Ba(OH)2 or of Ba that most matter. :oldwink:
     
  5. Dec 14, 2015 #4

    symbolipoint

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    BOTH of them
     
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