:the concentration of hydrogen ions in a solution expressed usually in moles per liter or in pH units and used as a measure of the acidity of the solution indicator dyes for narrow ranges ofhydrogen-ion concentration Love words? You must — there are over 200,000 words in our free online...
题目【题目】A high concentration of hydrogen ions correspondsto an acidic solution. From your answer to part (a).decide if solutions with high pHs are more or lessacidic than solutions with low pHs. 相关知识点: 试题来源: 解析 【解析】Les ...
n (pH) The concentration of hydrogen ions in solution when the concentration is expressed as gram-ionic weights per liter. A convenient form of expressing hydrogen ion concentration is in terms of the negative logarithm of this concentration. The negative logarithm of the hydrogen ion concentration...
The PH of a solution declines as the concentration of hydrogen ions increases.(摘自原文)其中increase为什么要改成复数形式? 答案 这里是主谓一致的问题,increase在这里是动词,修饰concentration,浓度,是个度量名词,不可数的,所以谓语动词用单数,加s,变成increases.前面的动词decline也是用的单数,修饰Ph.整句话的意...
What is the concentration (in M) of hydronium ions in a solution at 25.0 °C with pH = 4.282? A. 4.28 B. 9.71 C. 1.66 × 104 D. 5.22 × 10-5 E. 1.92 × 10-10 如何将EXCEL生成题库手机刷题 相关题库:Basic Chemistry 基础化学-2020春夏 > 手机使用 分享 反馈 收藏 举报 ...
结果1 题目 A high concentration of hydrogen ions correspondsto an acidic solution. From your answer to part (a).decide if solutions with high pHs are more or lessacidic than solutions with low pHs. 相关知识点: 试题来源: 解析 Less 反馈 收藏 ...
The pH measurement, on the other hand, is expressed as theconcentrationofhydrogen ionsdissolved in the wine. 另一方面,pH值是用溶解在酒中的氢离子浓度表示。 ParaCrawl Corpus The enzymehydrogenpotassium ATPase (H+/K+ ATPase) is unique to the parietal cells and transports the H+ against aconcentr...
Noun1.hydrogen ion concentration- the number of moles of hydrogen ions per cubic decimeter concentration- the strength of a solution; number of molecules of a substance in a given volume pH,pH scale- (from potential of Hydrogen) the logarithm of the reciprocal of hydrogen-ion concentration in ...
(Chemistry) potential of hydrogen; a measure of the acidity or alkalinity of a solution equal to the common logarithm of the reciprocal of the concentration of hydrogen ions in moles per cubic decimetre of solution. Pure water has a pH of 7, acid solutions have a pH less than 7, and alk...
The hydroxide ion concentration in household ammonia is 3.2×10−3 M at 25o Celsius. What is the concentration of hydronium ions in the solution? Temperature: The physical property which determines the scale of hotness and cool...