The pH value of a solution indicates its acidity or alkalinity. A solution with a pH of 7 is ___. A. acidic B. basic C. neutral D. strongly acidic 相关知识点: 试题来源: 解析 C。pH 值表示溶液的酸碱性,pH 为 7 是中性(neutral),小于 7 为酸性,大于 7 为碱性。反馈...
The invention relates to a composition in the form of an injectable aqueous solution having a pH of between 6.0 and 8.0 and comprising at least: a basal insulin having an isoelectric point (pI) of between 5.8 and 8.5; b) and a co-polyaminoacid consisting of glutamic or aspartic units as...
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Struggling With Equilibrium? Get Allen’s Free Revision Notes Free ALLEN Notes | ShareSave Answer Step by step video & image solution for The pH of a solution is 5. to this solution acid was added so that its pH value bcomes 2.0. The increase in H^(+) concentration is : by Chemistry...
Answer to: Calculate the (H_3O^+) of a solution with pH of 4.20. By signing up, you'll get thousands of step-by-step solutions to your homework...
If the pOH of a solution is 11.3, then what is the pH? Aqueous Solution: In an aqueous solution where the solvent used to make the solution is water, it can be described by the concentration of the hydroxide ion and the hydronium ion. With the molar concentration of the said ions for...
百度试题 结果1 题目The solution of pH = 2 has a concentration ofH+ as () times as that in the solution with pH = 6A. 4 B. 12 C. 4000 D. 10000 相关知识点: 试题来源: 解析 D 反馈 收藏
We can see why benzene is stable: according to resonance theory, the more resonance forms a substance has, the more stable it is. Benzene, with two resonance forms of equal energy, is therefore more stable and less reactive than a typical alkene. 2. Membranes can be defined essentially as...
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...