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julez
julez asked in Science & MathematicsChemistry · 4 years ago

please help find the ph of the solutions below??? ONLY 5 CHEM QUESTIONS?

6. 2.0 M HC2H3O2 (assume 5.0 percent dissociation)

7. 3.0 M HF (assume 10.0 percent dissociation)

8. 0.50 M HNO3

9. 2.50 M NH4OH (assume 5.00 percent dissociation)

10. 5.0 M HNO2 (assume 1.0 percent dissociation)

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  • Roger the Mole
    Lv 7
    4 years ago
    Favorite Answer

    6.

    - log (5.0% of 2.0) = 1.0

    7.

    - log (10.0% of 3.0) = 0.52

    8. HNO3 is a strong acid, so:

    - log 0.50 = 0.30

    9.

    pOH = - log (5.00% of 2.50) = 0.903

    pH = 14 - pOH = 13.1

    10.

    - log (1.0% of 5.0) = 1.3

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