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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Chemistry

Emery Crosby

20 May, 03:00

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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Answers (1)

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Christian Yu · Answer 1

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