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ChemistryChemistry
22 November, 17:55

PH of Substances in Chemistry: In chemistry, the of a substance, a measure of acidity of a substance, is defined as PH-log[H0 ], where H30+] is the hydrogen ion concentration (which characterizes an acid solution), in moles per liter. a. Find the PH of each substance: [H30 + 3.2 10-5 b. Find the hydrogen ion concentration of each substance, given the PH-

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  1. 22 November, 19:36
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    Answer: A. PH=4.50

    Explanation:

    As we know that pH=-log (H3O+)

    pH=-log (3.2x10^-5)

    PH = - log (3.2) + log (10^-5)

    = - (0.50 + (-5))

    PH = - (0.5-5) = - (-4.5)

    pH=4.50

    B. If we know pH, then [H3O+] = 10^-pH
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Home » Chemistry » PH of Substances in Chemistry: In chemistry, the of a substance, a measure of acidity of a substance, is defined as PH-log[H0 ], where H30+] is the hydrogen ion concentration (which characterizes an acid solution), in moles per liter. a.
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