The pH of an aqueous solution of 6.50x10 M hydroselenic acid, H,Se (aq), is For H,Se Ka =1.30*10 and K, -1.00*10-11 %D !!

Q: . Calculation of approximate K, for HC,H,O2:

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Q: Calculate the pH of a 0.13 M solution of propanoic acid. K, of propanoic acid is 1.3 x 10-5.

A: pH is defined as negative logarithm of hydrogen ion concentration.

Q: What is the pH of a 0.30 M hypochlorite ion solution (CIO-)? The K, for hypochlorite ion is 3.3 x 10…

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Q: Consider the following solutions at 25C. dentity the major species present in each solution and…

A: Answer:- This question is answered by using the simple concept of calculation of pH of aqueous…

Q: A solution is prepared by diluting 0.55 mol HNO3 with water to a volume of 1.75L. What is the pH of…

A: Molarity = Number of moles of solute/Volume of solution in L pH = -log[H+]

Q: In the laboratory, a general chemistry student measured the pH of a 0.415 M aqueous solution of…

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Q: TRIS (also known during medical use as THAM) is an organic compound used extensively in biochemistry…

A: "pH" tends to exhibit the actual potential of H+ ions in specified solution. The solution exhibiting…

Q: What mass (in g) of potassium fluoride should be added to 0.50 Lof 0.255-M HF(aq) at 25 °C to give a…

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Q: calculate the pH of the solution eith an H+1 concentration of 2.90×10-12 and identify the solution…

A: Given,  The concentration of H+ = 2.90 × 10-12 M The pH of the solution is:

Q: Calculate the pH for the following weak acid. A solution of HCOOH has 0.21 M HCOOH at equilibrium.…

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Q: A 20-year-old student with coffee addiction had an episode of extreme hyperventilation due to…

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Q: If the ?bKb of a weak base is 1.5×10−6,1.5×10−6, what is the pH of a 0.34 M0.34 M solution of this…

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Q: A 0.137 M solution of a weak base has a pH of 11.36. What is the base hydrolysis constant, ?b, for…

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Q: The pH and Kh of 0.1N NH4CI solution, if Kb for NH4OH at 25°C is 1.8x10-5 :will be respectively…

A: Kh=kWkC pH + pOH = 14  From Ostwald's dilution law ,  pOH=-logkbxc Where c is the concentration of…

Q: A solution Is prepared at 25 °C that Is Initlally 0.21M In acetic acid (HCH,CO,), a weak acid with…

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Q: Due to the pandemic Covid-19, the uses of hand sanitizers are very important among us. Predict and…

A: Hand sanitizer is a neutral solution. When red cabage indicator was added to it becomes purple in…

Q: Calculate the pH at 25 °C of a 0.33M solution of lidocalne HCI (C4H,, NONH, CI). Note that lidocalne…

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Q: What is the pH at 25 °C of water saturated with CO2 at apartial pressure of 1.10 atm? The Henry’s…

A: Concentration of CO2 can be calculated as follows: Where C is the concentration, KH  is the Henry’s…

Q: The value of K, for benzoic acid is 6.30×10-5. What is the value ofKg, for its conjugate base,…

A: Given: For Benzoic acid  The value of Ka = 6.30 x 10-5  For Conjugate base, C6H5COO- The value of Kb…

Q: What is the pH of a 0.250 M HOCI solution? K, of HOCI at 25°C is 3.5 x 10-8. O 7.46 O 4.03 O 3.57 O…

A: ​Given - - - >   Ka = 3.5*10-8   pH = 0.25

Q: A solution is prepared at 25 °C that is initially 0.21 M in benzoic acid (HC H,CO,), a weak acid…

A: An acidic substance is the substance that can give H+ ions. They are corrosive and sour in nature.…

Q: In the laboratory, a general chemistry student measured the pH of a 0.354 M aqueous solution of…

A: Given that: pH = 0.354 [C8H10N4O2] = 12.063 To find: Kb

Q: calculate the concentration of H + in a solution of hypochlorous acid (I) of 1 mol / liter. In your…

A: Given is Solution of 1M hypochlorous acid. i.e. [HOCl] = 1 M We need to find concentration of [H+]…

Q: The pOH of an aqueous solution of 0.453 M acetic acid is

A: Dissociation of weak polyprotic acid and pH  calculation:

Q: N(aq), was determined to have a p its hase ionization constant

A: According to the question, solution containing 4.2 g/L of the weak base pyridine was determined to…

Q: If the pH of a 0.200 M solution of the CICH2O¯ ion is 12.05, then what is the value for the basicity…

A: Given: pH = 12.05 Thus, pOH = 14 - 12.05 = 1.95 As pOH = -log[OH-] Thus, [OH-] = 10-pOH = 10-1.95 =…

Q: What mass (in g) of potassium fluoride should be added to 0.50 Lof 0.255-M HF(aq) at 25 °C to give a…

A: Given: Concentration of HF = 0.255 M Volume of solution = 0.50 L pH of buffer solution = 3.85  And…

Q: Dindicates concentrat on che pH of a solution, ha

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Q: you nave an oxalic acia concentration oT 0-2 M, wnat is the pH of the system? IT you nave a sodiu…

A: Solution-  Oxalic acid is (COOH)2  its means Oxalic acid of form H2A.   Therefore, in the chart, we…

Q: An aqueous salution at 25C is 13-97. HNO3 by mass and has a density of +-048 g/m² what is the PH of…

A: Given data: Mass of HNO3 13.9% Density of solution is 1.048 g/ml To find: pH of solution

Q: A solution is prepared at 25 °C that is initially 0.16 M in benzoic acid (HC,H,CO,), a weak acid…

A: Since the solution is having benzoic acid i.e HC6H5CO2 and its salt NaC6H5CO2  Hence the solution is…

Q: Ignore the further ionization of HSO3- ,  and calculate the pH of a solution whose initial…

A: When a chemical compound breaks into its component ions then this type of reaction is known as…

Q: The pH of a 0.224 M solution of a weak acid, НВ, is 2.63. What is Ka for the weak acid?

A: Given:  A solution of weak, HB with concentration = 0.224 M pH = 2.63    Weak acid dissociates in…

Q: The PH of a Oil M agueas sólutiom of Naz( the sodium salt of 2s 10,70: what is thie ha for Hz?

A: Given: Concentration of NaZ solution = 0.15 M pH of NaZ solution                   = 10.70

Q: Calculate the pH, pOH, and the fraction of protonated acid for the 0.1 M solution of lactic acid…

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Q: Kb for NH3 is 1.8 × 10-5. What is the pH of a 0.45 M aqueous solution of NH4Cl at 25.0 °C? Show

A: This question is related to salt hydrolysis of salt. By applying certain formula for that, required…

Q: The pH of a 0.209 M aqueous solution of chlorous acid is found to be 4.101. Calculate K, for…

A: Given : [HClO2] = 0.209 M pH = 4.101

Q: A solution is prepared at 25 °C that is initially 0.34M in acetic acid (HCH,CO,), a weak acid with…

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Q: Calculate the pH of a 0.5 Litre solution wich prepared by adding (50ml NH3) to a sufficient amount…

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Q: Q6) 200 ml , o.0ol M NAOH is udded to 30oml, o.0005 M HCL. what is the PH of the Soluution ? Ans. :…

A: The balanced Chemical Reaction between HCl and NaOH is - HCl + NaOH ----> NaCl + H2O Here, one…

Q: Which one of the following 1.0 M solutions would have the highest pH?

A: A large Kb value indicates the high level of dissociation of a strong base. A lower pKb value…

Q: What is the pH of a 0.420 M solution of C5H,NHB (Kb of C5H,N is 1.7 × 10-9)?

A: Given:: [C5H5NHBr]=0.420 M =concentration of salt=c Kb of C5H5N = 1.7×10-9 pH=?

Q: A certain aquecus lQade monoprotic acid has a PH Of 3.0el for a 036z m solution.calaulate the acid…

A: Given :  pH of solution = 3.61  concentration of acid solution = 0.362 M  To calculate :-  acid…

Q: What is the pH of an aqueous solution of 0.005 M C6H5O- at 298 K of the Ka for phenol at the given T…

A: Given: Concentration of C6H5O- = 0.005 M And Ka of C6H5OH = 1.0 × 10-10

Q: The pH for a solution with an [OH] of 1.0 x 10^-6 is?

A: We have Concentration of OH- as 10-6 , we have to predict the pH of Solution.

Q: The pH and Kh of O.1N NH4CI solution, if Kb for NH4OH at 25°C is 1.8x10-5 will be respectively equal…

A: Value of pH is used to measure extent of acidity or basicity of a solution. At room temperature,…

Q: at 25 degrees celcous, the Ka of HCO2H is 1.77 x 10^-4. What is the Delta G naught in kj/mol for…

A: Given : Ka of HCO2H = 1.77 X 10-4  And temperature = 25 oC

Q: - If the concentration of the hydroxyl ion (1-OH) in the solution is (0.0001) molar, then the value…

A: given, the concentration of hydroxyl ion, [OH-] = 0.0001M