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Chemistry 12

In s 0.30 mol/L HNO3(aq) solution.
a) what is the concentration of nitric acid molecules.
b)what is the hydroxide ion concentration?

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  1. (a) In aqueous solution there are no HNO3 molecules. Only ions are present.
    (b) (H^+)(OH^-) = 1E-14
    (H^+) = 0.30. Solve for (OH^-)

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  2. Thank you! I am still confused about b)

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  3. NVM, i got it! thanks!

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  4. is it true that at 20ºC, 100g = 100mL (for water)

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  5. How do we determine the specific gravity of a solution? and what unit is it in?

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  6. How did you know that (H^+)(OH^-) = 1E-14?
    And how did you know that (H^+) = 0.30 (Other than knowing that it was given from the questions, how would you know if that was the concentration of the hydrogen ion?)

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