Measurements of the pH of the Coke before and after the experiments showed that its acidity did not change, ruling out the idea that a simple acid-base reaction drives the fountains.
经过测量反应前和反应后实验前后的可乐pH值发现前后酸性没有发生变化，排除了简单的碳酸反应导致这喷泉影响的想法。
The chemical base for the bisulfite can be ionic calcium, magnesium, sodium or ammonium, Sulfite pulping can be carried out over a wide range of PH.
亚硫酸氢盐里的钙离子，镁离子，钠离子，铵根离子等化学基可以电离。
Buffer Solution usually containing a weak acid and its conjugate weak base, or a salt, of such a composition that the pH is held constant within a certain range.
通常指含有一种微酸和与之结合的一种微碱或盐，并能维持酸碱值基本恒定的溶液。
The variation of this pH range was dependent on the strength of the base, the volume of the conjugated acid cation, and whether this cation can increase the surface charge of the micelles or not, etc.
这一范围的大小（宽窄）受制于碱的强弱、共轭酸阳离子的体积以及共轭酸阳离子是否能增加胶束表面的电荷等几个方面。
The pH response to temperature varied in different pH ranges of the aqueous solutions, and colors changed when acid-base indicators were added to the aqueous solution.
在一定酸碱性的甘氨酸溶液中加入适当的酸碱指示剂，可以实现颜色随溶液温度的变化而变化。
The pH response to temperature varied in different pH ranges of the aqueous solutions, and colors changed when acid-base indicators were added to the aqueous solution.
在一定酸碱性的甘氨酸溶液中加入适当的酸碱指示剂，可以实现颜色随溶液温度的变化而变化。
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