H2se ka value

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August undefined, 2024

WebThe Ka for H2Se is 1.3 x 10^-9, so we can substitute this value along with the concentration of H2Se (0.38) into the equation to get: [H3O+] = sqrt (1.3 x 10^-9 x 0.38) = 1.15 x 10^-5 Finally, we can use this value to calculate the pH: pH = -log [H3O+] = … Web33 rows · 1. Strong acids are listed at the top left hand corner of the table and have Ka …

Solved Like sulfuric acid, selenic acid (H2SeO4) is a - Chegg

WebCl,Br,I all, belong to the same group. As one goes down the group, the atomic size increases and electronegativity decreases. Electronegativity is the ability of an atom to pull electrons towards itself. Acid strength order : HClO 3>HBrO 3>HIO 3. Stability of their conjugates : ClO 3−>BrO 3−>IO 3−. WebApr 30, 2007 · H2SeO4 For oxyacids, the acidity increases with increasing number of oxygen atoms; therefore, H2SO3 and H2SeO3 will be weaker than either H2SO4 or H2SeO4. We have a problem determining which is the stronger of H2SO4 or H2SeO4. rabbit girl and cinnamon

Hydrosulfuric acid, H2S, is a weak acid whose Ka value is …

WebWhich of the following are correct trends for aqueous acid strength (increasing value of Ka)? (i) H2Se (aq) > H2S (aq) > H2O (l) (ii) HBrO3 (aq) > HBrO2 (aq) > HBrO (aq) (iii) HBr (aq) > H2Se (aq) > H3As (aq) Multiple Choice only iii is a correct This problem has been solved! WebDec 21, 2024 · H2CO3 → HCO− 3 +H+ Ka1 =4.5⋅10−7 HCO− 3 → CO−2 3 +H+ Ka2 =4.7⋅10−11 Ka1 > Ka2 → H2CO3 stronger than HCO− 3 Diprotic Acid Example A diprotic acid example discussed earlier was the carbonic acid... WebFor carbonic acid (H2CO3), Kal = 4.3 x… A: B.) CO32- is a second conjugate base of H2CO3. So to calculate it's pOH , we would need its Kb1 ,… Q: Determine the OH-] of a solution that is 0.135 M in CO,2-. Express your answer using two significant… A: Given: Concentration of CO3-2 = 0.135 M Kb of HCO3- = 2.1×10-4 shn 3013d 7a

Solved Which of the following acids has the weakest Chegg.com

Hydrogen selenide - Wikipedia

WebJan 30, 2024 · A large Ka value indicates a stronger acid (more of the acid dissociates) and small Ka value indicates a weaker acid (less of the acid dissociates). For a chemical equation of the form HA + H2O ⇋ H3O + + A − Ka is express as Ka = [H3O +][A −] [HA] where HA is the undissociated acid and A − is the conjugate base of the acid. WebMay 4, 2015 · Which acid is stronger, AsH3 or H2Se? Question. thumb_up 100%. Which acid is stronger, AsH 3 ... To know the lowest pH of the given acids in equilibrium, we need to know the Ka value of the acids. ... shn3527wWebHydrosulfuric acid, H 2 S, is a weak acid whose K a value is 9.5x10 -8. What is the pH of a 4.0 M solution of H 2 S? Weak Acids: Hydrosulfuric acid is a weak acid because it doesn't completely... rabbit gifts for rabbit lovers

"WebWhich element has the lowest electronegativity value in these molecules? _A_ Each oxygen atom is very electronegative and attracts electrons. In which acid will the 1--1+ be most likely ... 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 ... " - H2se ka value

H2se ka value

Table of Acid and Base Strength - University of Washington

WebWhich of the following substances has the largest value for Ka,1? (a) H2Se (b) H2S (c) AsH3 (d) SiH4 (e) CH4 (f) NH3 This problem has been solved! You'll get a detailed solution from a subject matter expert that helps you learn core concepts. See Answer Question: Which of the following substances has the largest value for Ka,1? WebH2Se e. H2Te e. H2Te Use a table of Ka or Kb values to determine whether Kc for the following reaction is less than, equal to, or greater than 1. CH₃CO₂⁻ + HSO₄⁻ ↔ CH₃CO₂H + SO₄²⁻ a. Kc<1 b. Kc=1 c. Kc>1` Kc>1 …

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WebJan 30, 2024 · A large Ka value indicates a stronger acid (more of the acid dissociates) and small Ka value indicates a weaker acid (less of the acid dissociates). For a chemical … WebThe following data are from the Rubber Book (CRC Handbook of Chemistry and Physics), 89th edition, 2009, p 8-40. a c i d p K a 1 p K a 2 H X 2 S 7.05 19 H X 2 S e 3.89 11 H X …

WebUsing the following k values, label the k values for each reaction: (ka1 = 5 x 10-3, ka2 = 8 x 10-8, ka3 = 6 x 10-10) H3AsO4 (aq) H2AsO4-1 (aq) + H3O+1 (aq) ka1 = 5 x 10-3 H2AsO4-1 (aq) HAsO4-2 (aq) + H3O+1 (aq) ka2 = 8 x 10-8 HAsO4 (aq) AsO4 (aq) + H3O (aq) ka3 = 6 x 10-10 -2 -3 +1 9) Using the following Ka values, place the following acids in … WebApr 1, 2024 · HClO(aq) + H 2O(l) − ⇀ ↽ − ClO − (aq) + H 3O + (aq) with the following equilibrium constant Ka = aClO − · aH 3O + aHClO · aH 2O ≈ [ClO −][H 3O +] [HClO]{1} …

WebJun 26, 2024 · Well, a Ka value is a measure of the following equilibrium....... H A(aq) + H 2O(l) ⇌ H 3O+ + A− Explanation: H A(aq) + H 2O(l) ⇌ H 3O+ + A− Ka = [H 3O+][A−] [H A(aq)] Now pKa = − log10Ka ...... And thus Ka = 10−pKa And thus where pKa is small (negative), this specifies a strong acid where the given equilibrium lies to the … WebFeb 3, 2024 · The value of K a is used to calculate the pH of weak acids. The pK a value is used to choose a buffer when needed. Choosing an acid or base where pK a is close to …

WebThis problem has been solved! You'll get a detailed solution from a subject matter expert that helps you learn core concepts. Question: Which of the following acids has the weakest …

WebNov 24, 2024 · 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=x 2 /0.0620. From that x (which is equilibrium [H +]), we can calculate pH = -log[H +]. shn3525wk 代替品WebLike sulfuric acid, selenic acid (H2SeO4) is a diprotic acid that has a very large value of Ka1. Part A: Calculate the pH in 0.20 M H2SeO4 (Ka2=1.2×10−2). Answer found to be 0.68 Part B Calculate the concentration of H3O+. Part C Calculate the concentration of H2SeO4. Part D Calculate the concentration of HSeO−4. shn-3011d-7aWebAug 14, 2024 · The values of Ka for a number of common acids are given in Table 16.6.1. Weak bases react with water to produce the hydroxide ion, as shown in the following general equation, where B is the parent base and BH+ is its conjugate acid: B_ { (aq)}+H_2O_ { (l)} \rightleftharpoons BH^+_ { (aq)}+OH^−_ { (aq)} \label {16.5.4} shn3521wk 松下電工説明書Industrially, 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. rabbit girl mha from latest episodeWebH2Se H2O H2S NH3 NH3 Use a table of Ka or Kb values to determine whether K c for the following reaction is less than, equal to or greater than 1 OH- + CH3OH <=> H2O+ … shn3721wWeb1.7 x 10 -1. Oxalic. H 2 C 2 O 4. HC 2 O 4-. 5.9 x 10 -2. Sulfurous. H 2 SO 3. HSO 3-. 1.5 x 10 -2. rabbit gif pngWebOf the hydrides,H2O,H2Se,andH2Te, the one which has the smallest pKa value is 1. H2O 2. H2S 3. H2Se 4. H2Te The p-Block Elements (XII) Chemistry Questions Practice … shn3725w取替