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24 January, 00:08

Titration of a 25.0 mL sample of barium hydroxide requires 34.45 mL of 0.100 M nitric acid. What is the molarity of the barium hydroxide?

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  1. 24 January, 00:15
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    The titration reaction is written as follows:

    Ba (OH) 2 + 2HNO3 = Ba (NO3) 2 + 2H2O

    The calculations are as done as follows:

    0.100 mol HNO3 / L (.03445 L solution) = 0.003445 mol HNO3

    0.003445 mol HNO3 (1 mol Ba (OH) 2 / 2 mol HNO3) = 0.001723 mol Ba (OH) 2

    0.001723 mol / 0.025 L = 0.07 M Ba (OH) 2
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