교과서 질문
How is K_w defined, and what is its numerical value at 25 °C?
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14. Acids and Bases
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뒤로14. Acids and Bases
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- 교과서 질문The dissociation of water into H₃O⁺ and OH⁻ ions depends on temperature. At 0 °C the [H₃O⁺] = 3.38 x 10⁻⁸ M, at 25 °C the [H₃O⁺] = 1.00 x 10⁻⁷ M, and at 50 °C the [H₃O⁺] = 2.34 x 10⁻⁷ M. What is the value of K_w at 0 °C and 50 °C.2276views
- 객관식
Calculate the Kw of pure water given the pH = 6.34.
- 객관식
Chemistry student prepared an aqueous solution at 30ºC. If the solutions contains 7.42 × 10−9 M of hydroxide ions, calculate the pH.
- 교과서 질문The dissociation of water into H₃O⁺ and OH⁻ ions depends on temperature. At 0 °C the [H₃O⁺] = 3.38 x 10⁻⁸ M, at 25 °C the [H₃O⁺] = 1.00 x 10⁻⁷ M, and at 50 °C the [H₃O⁺] = 2.34 x 10⁻⁷ M. Is the dissociation of water endothermic or exothermic?2768views