ion product

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Lusitania sinking, illustration from The War of the Nations (New York), December 31, 1919. World War I, WWI. This image is one of three on the page. (See source file for the other two.)

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July, 2006, Launch of Space Shuttle Discovery STS-121. See attached for full caption information.

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Easter Procession of Maria Santisima del Sacromonte in Granada, Spain. This statue is known as Virgen de los Gitanos or The Virgin of the Gypsies.

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illustration of the walking titanosaurus, Patagotitan mayorum

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Titanic infographic. The 30th anniversary of its discovery is September 1, 2015. SPOTLIGHT VERSION.

Timeline of the Titanic’s Final Hours

ion product

chemical equation

Also known as: autoprotolysis constant

Learn about this topic in these articles:

acid-base equilibrium calculations

In acid–base reaction: Acid–base equilibria
…equation, K_s is termed the ion product or the autoprotolysis constant of the solvent. (For reactions involving dibasic and polybasic acids and diacidic and polyacidic bases, ionization reactions proceed in more than one step, with each step having its own equilibrium constant.)
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aqueous solutions

In acid–base reaction: Aqueous solutions
The ion product of water, K_w = [H₃O⁺] [OH⁻], has the value 1.0 × 10⁻¹⁴ mole²litre⁻² at 25 °C, but it is strongly temperature-dependent, becoming 1.0 × 10⁻¹⁵ at 0 °C and 7 × 10⁻¹³ at 100 °C. In principle the value of K_w can be…
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