Arrange the following substances in order from weakest to strongest acid: HClO3, HOI, HBrO2, HClO2, HIO2.

Q: Which of the hydrides below will be hydrolysed in water to give a basic solution? А CH B SIH4 с Вн D…

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Q: What is the pH of a 0.0300 M solution of NaNO2? (K, for HNO2 = 4.00 x 104) %3D O 7.00 O 7.94 8.81…

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Q: Calculate the pH of a 0.30M solution of sodium acetate (NaCH3COOo) given that the Ka of acetic acid…

A: Formula for calculating pH of as solution of a salt made from a weak acid and a strong base: pH = 7…

Q: why HCHO behaves both as oxidising and reducing agent?

A: In formaldehyde the oxidation state of carbon is 0.

Q: Rank the following hydroxides in order of increasing aqueous basicity: Al(OH)3, B(OH)3, In(OH)3.

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Q: Calculate the pKa of hypochlorous acid. The pH of a 0.015 M  solution of hypochlorous acid has a pH…

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Q: Which of these two oxides, SO3 and P4O10 , when reacts with water will produce stronger acid?

A: P4O10 and SO3 are acidic oxides and when they combine with water forms acids.

Q: Which of the following oxides is acidic?  a. Na2O b. CaO c. Al2O3 d. N2O3 Basic?  a. Ga2O3 b.…

A: We are given oxides of different elements, we have to predict the acidity and basicity of the given…

Q: Which is the stronger acid, NaHSO3 or NaHSO4?

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Q: Calculate the pH of a 0.125 M solution of KN3 at 25°C. Ka for HN3 is 2.5 x 10*

A: KN3 is a salt of weak acid HN3 and strong base KOH  This salt undergo a anionic salt hydrolysis…

Q: Rank the following in order of decreasing acid strength: HClO, HCl, HCN, HNO₂.

A: The acid dissociation constant represents the relationship between the strengths of acids and bases.…

Q: A hypothetical element A has these properties: first ionization energy= 850 kJ/mol second…

A: In the question given, that third Ionisation energy of element A is exceptionally very high as…

Q: Rank the following oxides in order of increasing acidity inwater: Sb₂O₃, Bi₂O₃, P₄O₁₀, Sb₂O₅.

A: The acidic strength of an oxide increases with the increase in oxidation state of central atom in…

Q: Which of the following is an acidic salt? O a. Na2SO4 O b. NaCI С. КС O d. NH4CI O e. CH3COONa

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Q: Why can't both S2- and SO32- be present in the same solution? Explain, and write the equation

A: S2- sulphide ion:  Sulphide  is an inorganic anion of sulfur with the chemical formula S2− or a…

Q: Complete and balance equations for the following reaction

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Q: .Write a balanced equation for the dissociation of each of the following Bronsted- Lowry acids in…

A: Bronsted-Lowry acid-base theory: The Bronsted-Lowry acid-base theory states that the acid is a…

Q: What is the pH of a 0.193 M w. acid HA solution? Ka = 6.61 x 10−6?

A: The acid is weak so it weakly dissociates in the solution. That is it gives an H+ ions slowly in to…

Q: Which of the following is the structure of oxalic acid? HO, но. OH HO. HO. II II IV

A: First is acetic acid and fourth is succinic acid.

Q: Which of the following is strongest acid HA (pka = 1) HB (pka = 2) HD (pa = 3) НЕ (pка — 4)

A: Pka of acid is given by the negative logarithm of Ka i.e pKa = -log Ka where Ka is the acid…

Q: Which is more acidic, HF or HI? Explain

A: Bond strength of a general molecule AH is related to the length of the bond between the hydrogen…

Q: Calculate the hydrogen ion concentration in mol/L for solutions with the following pH values: (a)…

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Q: Write a balanced equation for the proton-transfer reaction between  phosphate ion (PO43-) and water,…

A: A polyprotic acid contains two or more ionizable hydrogens (protons) per molecule that it can donate…

Q: Would you expect technetium(II) oxide, TcO, to react more readily with HBr(aq) or NaOH(aq)

A: technetium(II) oxide, TcO being a metal oxide is basic in nature. Therefore, it will react more…

Q: Salts of hypoiodite ion behave as a weak base, undergoing hydrolysis in water according to the…

A: Given Reaction:-  IO-  + H2O  <----------> HIO + OH-  Kh = 0.00044  Kh = [HIO ] [ OH- ] / […

Q: Choose the answer in which the oxides are arranged in order of increasing acidity (least acidic…

A: Different type of oxides when dissolved in water , they give acidic ,basic , amphoteric or neutral…

Q: 7.9 Which of the following oxides are likely to be acidic, basic or amphoteric in aqueous solution:…

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Q: Which of the hydrides below will be hydrolysed in water to give a basic solution? A CH4 B SiH4 с вн…

A: CH4  do not hydrolysed because of absence of vacant orbital. SiH4 undergo hydrolysis because of…

Q: When solid CrO3is dissolved in water, the solution is or-ange rather than the yellow of H2CrO4. How…

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Q: What is the pH of a solution that is 0.03M in picric acid and 0.1M in sodium picrate. pka=0.38 O a.…

A: The solution is mixed by adding picric acid to sodium picrate. Sodium picrate is made by adding…

Q: Find the pH of a 0.145 M HCIO2(aq) solution. For HCIO2, Ka = 0.011. O 0.84 O 1.46 O 1.34 O 1.40

A: Given: Concentration of HClO2 = 0.145 M And Ka of HClO2 = 0.011

Q: Part II. Arrange the following compounds in order of increasing basicity. 7. NazO, Rb2O, K2O 8.…

A: Ans. Part II Arrangement of the given compounds in order of increasing basicity: (7)  Na2O <…

Q: Which is a stronger acid? Boron trifluoride or sulfuric acid?

A: Substance which easily gives H+ ion in aqueous solution, is stronger acid.

Q: Which is more acidic and why?  [Fe(H2O)6]2+ or [Fe(NH3)(H2O)5]2+

A: Acidity: It basically describes the how much amount of acid present in given compound. Acid: Species…

Q: What is the pH of a 0.40 M solution of K₂SO3?

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Q: Rank the following hydroxides in order of increasing aque-ous basicity:Al(OH)₃, B(OH)₃, In(OH)₃.

A: The metallic character of thegroup 13 elements first increases from Boron to Aluminium, then…

Q: Which of the following oxides does not produce an acidic solution when dissolved in water? A) SO3 B)…

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Q: Which is the stronger acid, HClO3 or HBrO3? Why?

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Q: Based on the pH measured for the solution of (NH4)2CO3, is NH4+ is a stronger acid or is CO2−3…

A: Given: To determine whether (NH4)2CO3  is strong acid or strong base.   Definition: (NH4)2CO3 is…

Q: Predict whether each of the following oxides is acidic, basic,amphoteric, or neutral: (a) NO2, (b)…

A: Acidic oxides : oxides of non - metal are generally acidic in nature as they react with water to…

Q: Indicate the type of oxide (acidic, basic or amphoteric) that best describes each of the following…

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Q: Calculate the pH of a 0.20 M solution of NaC2H302. HC2H3O2 has a Ka-1.8 O a. 8.56 O b. 7.00 Oc. 9.02…

A: The question is based on the concept of salt hydrolysis. We have to calculate pH of the Sodium…

Q: The acid strength decreases in the series HBr > HSO, > CH3COOH > HCN > HCO, Which of the following…

A: The order of acidity of conjugate bases are same as the acidity of acids. But a strong acid has weak…

Q: Some metal oxides, such as Sc2O3, do not react with purewater, but they do react when the solution…

A: Sc2O3 reacts when the solution is acidic. The balanced chemical reaction is:

Q: Which of these oxides would produce a basic solution in water? A) Na2O  b)  SiO2   c)  SO2   d)…

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Q: uestion 23 Arrange the following compounds in order of increasing acidity, putting the least acidic…

A: The lower is th PKa of acid, higher is its acidic strength. So, check for pKa.

Q: A solution of 1.5 M chlorous acid has a pH of 0.91.  What is the percent ionization of the chlorous…

A: Given, A solution of 1.5 M chlorous acid has a pH of 0.91.  KA = 1.1 x 10−2.