WebWhat is the pH of a 0.40 M H2Se solution that has the stepwise dissociation constants Ka1= 1.3 x 10^-4 and Ka2= 1.0 x 10^-11? please show all your work. Web33 rows · 1. Strong acids are listed at the top left hand corner of the table and have Ka values >1 2. Acid with values less than one are considered weak.
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WebJul 31, 2015 · HBrO2 is the stronger acid. Explanation: For oxyacids with the same central atom, the acidity increases as the number of atoms bonded to the central atom increases. Thus, we predict that HBrO2 should be a stronger acid than HBrO. This is confirmed by their Ka values . HBrO2 has Ka = 1.2 ×10−5, while HBrO has Ka = 2 ×10−9. Answer link WebThis acid is known to have a boiling point of 400 Kelvin or 127 degrees Celsius. 4. Sulphuric Acid (H 2 SO 4) Sulphuric acid (sometimes spelt as sulphuric acid and sometimes referred to as vitriol oil or oil of vitriol) is a mineral acid consisting of oxygen, sulphur and hydrogen. The molecular formula of this compound can be written as H2SO4.
WebDec 8, 2014 · You have to know what pK means, but it you haven't done it, it suffices that it is the pH at which the acid is half-dissociated. But then you have to know what pH means. So we'd class H 2 Se as a weakish acid a bit more acidic than acetic. H 2 Te is getting to be strongish. This may be the first and last time you meet it. And even H 2 Se not often. WebHydrogen selenide H2Se CID 533 - structure, chemical names, physical and chemical properties, classification, patents, literature, biological activities, safety ...
WebMolar Mass, Molecular Weight and Elemental Composition Calculator. Molar mass of H2Se is 80.9759 g/mol. Compound name is hydrogen selenide. Get control of 2024! Track your food intake, exercise, sleep and meditation for free. Convert between H2Se weight and moles. Compound. WebThis problem has been solved! You'll get a detailed solution from a subject matter expert that helps you learn core concepts. Question: The pH of an aqueous solution of 8.50×10-2 M hydroselenic acid, H2Se (aq), is ______ . For H2Se Ka1 = 1.30*10-4 and Ka2 = 1.00*10-11. The pH of an aqueous solution of 8.50×10-2 M hydroselenic acid, H2Se (aq ...
WebConsider the acids, H20, H2S, H2Se and H2Te. Rank these acids in order of increasing strength: Write notes to ourself about acid stren th: HOCI, HOBr, HOI HOCI, HC102, HC103, HC104 HF, HCI, HBr, HI or H20, H2S, Size = a
WebThe pH of an aqueous solution of 5.35×10-2 M hydroselenic acid , H2Se (aq), is ? For H 2 Se K a1 = 1.30*10 -4 and K a2 = 1.00*10 -11 Expert Solution Want to see the full answer? Check out a sample Q&A here See Solution star_border Students who’ve seen this question also like: Chemistry: Principles and Reactions how common is metastatic breast cancerWebAn aqueous solution of an equal concentration of acetic acid and sodium acetate has a pH of 4.74. pH of these solutions is below seven These solutions consist of a weak acid and a salt of a weak acid. An example of an acidic buffer solution is a mixture of sodium acetate and acetic acid (pH = 4.75). Alkaline Buffers how common is methemoglobinemiaWebHClO2 Calculate the pH of a 0.50 M solution of sodium benzoate (NaC6H5COO) given that the Ka of benzoic acid (C6H5COOH) is 6.50 x 10-5. a) 2.24 b) 9.81 c) 11.76 d) 8.94 e) 5.06 8.94 Calculate the pH of a 0.200 M solution of hypochlorous acid, for which the Ka value is 2.90 x 10-8. a) 9.88 b) 3.58 c) 7.62 x 10-5 d) 10.42 e) 4.12 4.12 how common is moldIndustrially, it is produced by treating elemental selenium at T > 300 °C with hydrogen gas. A number of routes to H2Se have been reported, which are suitable for both large and small scale preparations. In the laboratory, H2Se is usually prepared by the action of water on Al2Se3, concomitant with formation of hydrated alumina. A related reaction involves the acid hydrolysis of FeSe. how common is migraineWebCalculate the pH and concentration of species present in a polyprotic acid solution. For a 8.91×10-2 M solution of H2Se, calculate both the pH and the Se2- ion concentration. H2Se + H2O H3O+ + HSe- This problem has been solved! You'll get a detailed solution from a subject matter expert that helps you learn core concepts. See Answer how common is miscarriage in the usWebNov 24, 2024 · Ka = 4.9E-10 = x2/ (0.0620-x). Since the power of the Ka is -10, we can safely assume that the x is small enough to ignore compared to the 0.0620, so it becomes 4.9E-10=x2/0.0620. From that x (which is equilibrium [H+]), we can calculate pH = -log [H+]. how common is mononucleosisWebCHEM1102 2012-N-7 November 2012 • Order either one of the two following sets of oxides in terms of increasing acidity. Explain the reasons for your order. 1. HBrO 4, H 3AsO 4, H 2SeO 4 2. HClO 2, HClO, HClO 4, HClO 3. Marks 2 1. H 3AsO 4 < H 2SeO 4 < HBrO 4 The acidic protons are all bonded to an O atom that in turn is bonded to the As, how common is mold in homes