C. The solution was stirred too vigorously. D. The sample was E. xposed to air F. or too long. 相关知识点: 试题来源: 解析 A。本题考查溶液 pH 测定的误差。pH 计使用前未校准可能导致测量的 pH 值比实际更酸。B 选项,指示剂不合适可能影响判断,但不一定导致测量值更酸;C 选项,溶液搅拌剧烈...
百度试题 结果1 题目Determine the pH of the solution with hydronium ion concentration 10^(-9) 相关知识点: 试题来源: 解析 9反馈 收藏
Determine pH values of a solution problem asking «on:November 26, 2011, 10:54:18 AM » By dissolving 0.5050g NaHCO3 in enough water to make up a 100ml solution. The acidity constant, Ka, of carbonic acid, H2CO3 os 4.2 X 10-7, and that of bicarbonate ion, HCO-3, is 4.8 X...
a3. Determine each pH value by comparing color of the mixed solution with the colorimetric analysis chart provided. (Obtainable pH value can vary according to quality of the source water, water inflow pressure and water temperature) 3. 确定每个PH值通过混杂的解答的颜色与提供的比色分析图比较。 (...
Determine the pH of a 0.28 M {eq}CH_3NH_3I {/eq} solution. Acidic Ionic Compound: An amine is an uncharged organic compound that contains a functional group with the generic formula {eq}\rm NR_3 {/eq}. This functional group acts as a Bronsted-Lowry base to deprotonate water molecul...
Calculate the hydrogen ion (H_3O^+) concentration in Molarity for each of the following pH. a. pH = 5.2. b. pH = 9.6. A solution has a hydrogen ion concentration of 6.8 x 10^-3 M. What is the pH and pOH of the solution?
Determine the pH after the addition of 5.00 mL OH−. (a) 1.301 (b) 0.796 (c) 0.495 (d) 4.301 Neutralization Reaction: The usual reactants in a neutralization reaction are the hydronium and the hydroxide ions. These two are formed due to the dissolution in an aqu...
Device for measuring value of pH may contain: the first electrode and the second electrode, the first electrode and the second electrode shall be immersed in solution; power supply source to supply bipolar rectangular potential pulse signal to the first electrode and the second electrode; the ...
In the titration of25mLof0.100MN2H2(Kb=8.9×10−7) with0.100MHCl, determine the pH at the beginning of titration. Weak Base Solution Answer and Explanation:1 Learn more about this topic: Strong & Weak Acids & Bases | Definition & ...
A student makes a 0.444 M solution of a weak base that has a pH of 8.94. Determine the {eq}K_b {/eq} for this base. Calculating the {eq}K_a {/eq} or {eq}K_b {/eq} of a Solution When calculating the acid dissociation constant {eq}K_a...