单词 | hydroxide ion |
例句 | When precipitating a metal from solution, it is necessary to avoid an excess of hydroxide ion, as this may lead to complex ion formation as discussed later in this chapter. Chemistry 2019-02-14T00:00:00Z One water molecule can split apart to form one positive hydrogen ion, H+, and one negative hydroxide ion, OH–. Miller & Levine Biology 2018-01-01T00:00:00Z As defined in the ICE table, x is equal to the equilibrium concentration of hydroxide ion: Chemistry 2019-02-14T00:00:00Z In this reaction, a proton is transferred from one of the aluminum-bound H2O molecules to a hydroxide ion in solution. Chemistry 2019-02-14T00:00:00Z Calculate the hydronium ion concentration and the hydroxide ion concentration in lime juice from its pH. Chemistry 2019-02-14T00:00:00Z If it were produced, it would instantly react with the excess hydroxide ion to produce water. Chemistry 2019-02-14T00:00:00Z The hydroxide ion concentration in household ammonia is 3.2 10−3 M at 25 °C. What is the concentration of hydronium ions in the solution? Chemistry 2019-02-14T00:00:00Z Since it lacks a hydroxide ion, fluorapatite is more resistant to attacks by acids in our mouths and is thus less soluble, protecting our teeth. Chemistry 2019-02-14T00:00:00Z The nitride ion is a much stronger base than the hydroxide ion: Chemistry 2019-02-14T00:00:00Z The net ionic reaction involves hydroxide ion and carbon dioxide: Chemistry 2019-02-14T00:00:00Z In the reverse direction, a hydroxide ion acts as a base in accepting a proton from ammonium ion, which acts as an acid. Chemistry 2019-02-14T00:00:00Z An added hydroxide ion is removed by the reaction: Chemistry 2019-02-14T00:00:00Z The solution pH is then calculated using the concentration of hydroxide ion: Chemistry 2019-02-14T00:00:00Z Calculate the hydrogen ion concentration and the hydroxide ion concentration in wine from its pH. Chemistry 2019-02-14T00:00:00Z Are the concentrations of hydronium ion and hydroxide ion in a solution of an acid or a base in water directly proportional or inversely proportional? Chemistry 2019-02-14T00:00:00Z The process is endothermic, and so the extent of ionization and the resulting concentrations of hydronium ion and hydroxide ion increase with temperature. Chemistry 2019-02-14T00:00:00Z Adding a common ion, Mg2+, will increase the concentration of this ion and shift the solubility equilibrium to the left, decreasing the concentration of hydroxide ion and increasing the amount of undissolved magnesium hydroxide. Chemistry 2019-02-14T00:00:00Z Using this information, calculate the standard free energy change for the aqueous reaction of hydrogen ion with hydroxide ion to produce water. Chemistry 2019-02-14T00:00:00Z In the forward direction, water acts as an acid by donating a proton to ammonia and subsequently becoming a hydroxide ion, OH−, the conjugate base of water. Chemistry 2019-02-14T00:00:00Z Species listed between water and its conjugate base, hydroxide ion, are weak bases that partially ionize. Chemistry 2019-02-14T00:00:00Z In solutions of the same concentration, stronger bases ionize to a greater extent, and so yield higher hydroxide ion concentrations than do weaker bases. Chemistry 2019-02-14T00:00:00Z The commercial preparation involves the electrolysis of cold, dilute, aqueous sodium chloride solutions under conditions where the resulting chlorine and hydroxide ion can react. Chemistry 2019-02-14T00:00:00Z |
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