Ph of hcook
WebDec 21, 2024 · Hydrolysis of potassium acetate (a salt of a weak acid and a strong alkali) gives a weakly alkaline solution, since the acetate ion acts as a weak base. The pH of this solution ≈ 8.8. Hydrolysis of sodium carbonate (a salt of strong alkali and a weak acid) gives an alkaline solution The pH of this solution is > 10 ← Prev Question Next Question → WebMay 4, 2015 · The pH of a 0.10-M solution of caffeine is 11.16. Determine Kb for caffeine from these data: C8H10N4O2 (aq)+H2O (l)C8H10N4O2H+ (aq)+OH (aq) arrow_forward Recommended textbooks for you arrow_back_ios arrow_forward_ios Chemistry by OpenStax (2015-05-04) Chemistry ISBN: 9781938168390
Ph of hcook
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WebDec 21, 2024 · answered Dec 21, 2024 by pinky (74.5k points) selected Dec 22, 2024 by Vikash Kumar. Best answer. The correct option is: (b) Na2CO3. WebSo the negative log of 5.6 times 10 to the negative 10. Is going to give us a pKa value of 9.25 when we round. So pKa is equal to 9.25. So we're gonna plug that into our Henderson-Hasselbalch equation right here. So the pH of our buffer solution is equal to 9.25 plus the log of the concentration of A minus, our base.
Web【题目】下列有关电解质溶液中微粒的物质的量浓度关系正确的是()A.pH相同的① CH_3COONa②NaHCO_3 ③NaClO三份溶液中的c(Na+):②③①B.将0. 百度试题 结果1
WebA.在相同的条件下测得①CH 3 COONa②NaHCO 3 ③NaClO三种溶液pH相同,已知酸性:CH 3 COOH>H 2 CO 3 >HClO,所以水解程度:NaClO>NaHCO 3 >CH 3 COONa,pH相同时,溶液的浓度:NaClO②>③,故A错误; B.在NaHCO 3 溶液中存在物料守恒c(Na + )=c(CO 3 2-)+c(HCO 3-)+c(H … on the devil\u0027s court themeWebAs a highly educated, innovative, and analytical professional with 18 years of industry experience working with utility companies, I am passionate and find purpose in driving … on the devils wingWebJan 22, 2024 · . . . . .. . . . x Ka for acetic acid = 1.8 x 10^-5 Kb for acetate = Kw/Ka = 5.6 x 10^-10 =x^2/0.1-x x = [OH-]=7.4 x 10^-6 M pOH =5.1 pH = 14 - 5.1 =8.9 hope this help you thanks ️ ️ Advertisement warwix51 PH of Sodium ethanoate is low, it is around 4 to 6. Advertisement Advertisement on the developmentWebMar 16, 2024 · Here are the steps to calculate the pH of a solution: Let's assume that the concentration of hydrogen ions is equal to 0.0001 mol/L. Calculate pH by using the pH to … onthedexWebAug 30, 2015 · The concentration of the hydronium ions will thus be x = [H3O+] = 5.97 ⋅ 10−3M This means that the solution's pH will be pH sol = − log([H3O+]) pH sol = − log(5.97 ⋅ 10−3) = 2.22 Answer link on the devil\\u0027s tailWebQuestion (a) What is the pH of 0.65 M potassium formate, HCOOK? (b) What is the pH of 0.85 M NH4Br? Solution Verified Create an account to view solutions Recommended … onthedh.cafe24.comWeb试题分析:a、碳酸氢钠溶液中碳酸氢根离子的水解大于电离,所以水解出的碳酸分子浓度大于电离出的碳酸根离子浓度,错误,不选a;b、根据质子守恒,正确,选b;c、没有说明溶液的温度是否为常温,则ph=7不一定是中性,所以氢离子浓度和氢氧根离子浓度,不能比较,错误,不选c;d、已知酸性:hcooh>ch 3 cooh,所以甲酸 ... on the devil\u0027s tail