Ph of 0.1 m hno2
Webb29 mars 2024 · If we get lower pH values of a solution, it means that the solution is more acidic and we know that the solution in which we get higher pH value will be more basic …
Ph of 0.1 m hno2
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Webb18 mars 2014 · The pH of 0.1 M sodium acetate is calculated as follows: Kb = 5.56x10−10 = [OH −][H A] [A−] = x2 0.1 − x ≈ x2 0.1 x = (0.1Kb)1 2 = 7.46x10−6 = [ OH −] pOH = … Webb用 pH 试纸测得：CH3COONa 溶液的 pH 约为 9，NaNO2 HNO2 电离出 H+的能力比 A．实验①中试管口有红棕色气体产生，说明稀硝酸被 Cu 还原为 NO2 B．实验③中滴加稀硫酸，铜片继续溶解，说明稀硫酸的氧化性比稀硝酸强 C．由上述实验可得出结论：Cu 在常温下既可以与稀硝酸反应，也可以与稀硫酸反应 D．
Webb19 jan. 2011 · What is the pH of 15 mL of 0.0045 M HNO3? The pH of 15 mL of 0.0045 M HNO3 is 2.35. The pOH is 11.7. When a solution has a pH under 7, it is said to be acidic. Webb30 mars 2024 · Kb for NO2^- = (Kw/Ka for HNO2) = (x) (x)/ (0.1-x) 4.5x10^-4 = (x) (x)/ (0.1-x) x = 6.75x10^-3 M x = [OH-] -log [OH-] pH= 14- (-log [OH-]) pH =11.8 For HNO2, that is a weak acid and ...............HNO2 ==> H^+ + NO2^- I..............0.05............0.........0 C.............-x................x.........x E..........0.05-x.............x.........x
Webb13 nov. 2024 · El pH de la disolución de en agua es de 2.4. ¿Qué es el pH? El pH es el índice de acidez de una solución acuosa.Se obtiene mediante la expresión:. pH= - log []Se … WebbLearn for free about math, art, computer programming, economics, physics, chemistry, biology, medicine, finance, history, and more. Khan Academy is a nonprofit with the …
WebbStep 4: Using the given pH, solve for the concentration of hydronium ions present with the formula: [H3O]+ =10−pH [ H 3 O] + = 10 − p H pH = 2.52 [H3O]+ = 10−2.52 [ H 3 O] + = 10 − 2.52...
Webb12 apr. 2024 · Science Chemistry Current Attempt in Progress Your answer is partially correct. Assume that you know the Ksp of the following compounds: Agl, AuCl3, Pbl2, Cul, Hg2l2, Fe3 (PO4)2, PbCrO4, ZnCO3, Ag3PO4. Al (OH)3, Zn (OH)2- Choose the best answer to characterize the relationship of Ksp values and the predicted relative solubility of … mw contingency\u0027sWebbTính toán kết quả Lượng cân m=0,4g Hiệu số ∆V = V2- V1= 12,9ml Số mol procaine hydrochloride: n = nHCl = nNaOH = ∆V . 0,1 /1000 = 12,9 . 0,1/1000 = 0,00129 (mol) Mp = n. M = 0,00129 . 272,80 = 0,351912 (g) Hàm lượng procaine hydrochloride: 0,351912 H = Mp . 100%/m = .100% = 87,978% 0,4 Câu 22: CHLORAMPHENICOL A. KIỂM ... how to order new sim card eeWebb31 mars 2014 · pH = - log10 [H+], where [H+] is the molar concentration of hydrogen ions. HNO3 is a strong acid and dissociates completely in water so a 5 M solution of HNO3 would have a concentration of... how to order new tags for carWebb14 maj 2011 · 2 answers. The easiest way is to work up an ICE chart as below. I like to work in millimoles. For the original buffer, if we have 1L of the original buffer, we will … how to order new medicare card onlineWebbA solution is prepared by adding 20.0 mL of 0.10 M HCl to 30.0 mL of 0.20 M HNO 3. Calculate the concentration of H + in this solution. Both HCl and HNO 3 are strong acids. … mw construction llcWebbbase or a weak base with a strong acid? What is the color of this indicator a pH 4.6? (10 pts) HIn ⇄ H+ + In-(Red) (Yellow) The indicator changes colors at pH = pK a = -log(7.9 x … how to order new ssn cardWebbCompute pH of the 0.1 M solution of acetic acid (pKa=4.76). Solve example 1. Example 2 What is the pH of the 10-7 M HCl? Solve example 2. Example 3 Calculate pH and pOH of … mw consulting bonn