What is the percent ionization of a 0.50 M HC2H3O, solution (Ka = 1.8 × 10-5 ) at 25°C? 0.42 % 0.15 % 0.60 % O 0.85 % 0.38 %

Q: The hydronium ion concentration of an aqueous solution of 0.402 M hypochlorous acid (Ka = 3.50×10-8)…

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Q: Which of the following salts would produce the most basic aqueous solution? NH4ClO4 NaCN K2SO4…

A: Acidity and basicity of salt -> Strong acid + strong base => Neutral Strong acid + weak base…

Q: What is the concentration of a solution of (a) KOH for whichthe pH is 11.89, (b) Ca(OH)2 for which…

A: We know that, the pH of the solution is equal to the negative log10 of the hydrogen ion…

Q: What is the pH when the [OH-] = 4.26 x 10-2 M at 25 oC?

A: 1- First we need to calculate the pOH of the solution :  We know that,  pOH = -log[OH-]  pOH = -log(…

Q: What is the pH of a solution with [OH-]=2.2 x 10^-7M?

A: In this question, we will determined the pH of the basic solution. So, first we need to determine…

Q: The value of K, at normal body temperature (37°C) is 2.8 × 10-14. Calculate the concentration of…

A: Given values : Kw = 2.8 x 10-14 [ H3O+ ] = 0.01 M

Q: What is the percent ionization of H2NNH2 in a solution with a concentration of a 0.630 M? (Kb = 1.3…

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Q: Calculate the volume of 0.230-M NaOH solution needed to completely neutralize 64.1 mL of a 0.850-M…

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Q: What is the percent ionization of H2NNH2 in a solution with a concentration of a 0.560 M? (Kb = 1.3…

A: Given information,  H2NNH2 in a solution with a concentration of a 0.560 M  Kb = 1.3 x 10-6

Q: If 0.100 mol of an unknown acid, HX, is dissolved in enough water to make 1.00 L of solution, find…

A: Provided moles of HX=0.100 moles Provided volume of solution=1Litre Molarity=(moles)/(volume in…

Q: At 25 degrees Celsius, what is the hydronium ion concentration in 0.100 M sodium chloroacetate? O a.…

A: Given,  Concentration of Sodium chloroacetate, ClCH2OONa is = 0.100 M

Q: Propanoic acid HC3H5O2, has a Ka of 1.3 x 10-5. What is the [H3O+] in a (1.51 x 10-1) M solution of…

A: The ionization of Propanoic acid HC3H5O2 takes place as,                             HC3H5O2 (aq)  +…

Q: What is the percent ionization of a 0.75 M solution of ammonia? Kb(NH,) = 1.8 × 10-5 [?] %

A: Given ,  Ammonia concentration = 0.75 M Kb=1.8×10-5

Q: The chemical formulae of some acids are listed in the first column of the table below, and in the…

A: Since, H3PO4 is a triprotic acid it dissociates with water a follows-

Q: Which of the following aqueous solutions is(are) considered basic? [H3O+]=5.4 x 10-8 M pOH = 9.0…

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Q: Which aqueous solution has the lowest pH? O a. 0.30 M HCI O b.0.30 M NH 3 Oc.0.30 M CH 3COOH O…

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Q: Which of the following indicates the most basic solution at 25oC? a. pOH = 6.7 b. pH = 4.2 c.…

A: To determine the most basic solution among the given solutions a. pOH = 6.7 b. pH = 4.2 c. [H⁺] = 1…

Q: Determine [OH–], pOH and pH of a 0.41 M  aqueous solution of LiC3H5O3 (K b = 7.1×10-11). [OH–] =…

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Q: 3. Calculate the percent ionization for a 0.20 M solution of Hydrazoic Acid, HN3 Ka = 2.5 x 105

A: We have to calculate the % ionization.

Q: A 0.16 M solution of NaF ( assume the Ka of HF is 8.6 x 10-4) has a higher pH than a 0.16 M solution…

A: The greater the Ka value, the greater is its acidity and lower will be its pH value. The conjugate…

Q: Chlorous acid, HC1O2, has a K. = 1.2 × 10-2.Calculate the pH when 0.15mol of HC1O2 is dissolved in 1…

A: The concentration of HClO2 is calculated as, Concentration = No. of molesVolume (L)Concentration =…

Q: Which of the following salt aqueous solution has a pH = 7 at 25 °C? %3D O NANO3 O LizSO3 O NH CI O…

A: Answer is NaNO3 NaNO3 salt is of neutral nature. By neutral nature we means, Salt is formed by…

Q: Hydroxylamine (NH2)H) is a weak base with a Kb=6.6x10^-9.  What is the pH of a 0.36 M solution of…

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Q: A 0.026 M solution of a weak acid (HA) has a hydronium-ion molarity [H3O'Jof 5.3 x 10- M. What is…

A: The percent ionization of a weak acid depicts its extent of dissociation. The percent ionization of…

Q: percent ionization

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Q: What is the hydronium ion concentration in an aqueous solution with a hydroxide ion concentration of…

A: We know that,pH+pOH=14.........1Also,pOH=-log[OH-]pOH=-log(0.001)pOH=-(-3)pOH=3.........2Put…

Q: From the choices below, select the statements that correctly describe acidic aqueous solutions. A.…

A: A neutral solution is one in which the concentrations of H+ and OH- are equal. [H+] = [OH-] An…

Q: What is the percent ionization of a 0.0075 M solution of ammonia? K₂(NH3) = 1.8 x 10-5 [?] % %…

A: In a solution of ammonia, ammonia is present as NH4OH due to presence of water. NH4OH acts like a…

Q: What is the percent ionization of H¿NNH2 in a solution with a concentration of a 0.530 M? (Kb = 1.3…

A: Weak base dissociate partially in solution. The degree of ionization is not complete in such…

Q: What is the concentration of sodium ions in 0.105M Na2HPO4?

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Q: What is the pH of a 0.780 M solution at 25 oC?   (  Ka = 4.9 x 10−10, at 25 oC)

A: Given, concentration of a solution (c) = 0.780M dissociation constant of acid (Ka) = 4.9×10-10

Q: The hydronium ion concentration of an aqueous solution of 0.371 M isoquinoline (a weak base with the…

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Q: What is the percent ionization of H₂NNH₂ in a solution with a concentration of a 0.660 M? (Kb = 1.3…

A: % ionization = 0.140%

Q: Aniline, C6H5NH2 is a weak base important in the dye industry.  It has a Kb= 4.0 x 10-10. What is…

A: Step : 1           What is the pH of a solution containing 0.45 M aniline?

Q: Choose the CORRECT statement(s) regarding 0.0010M NH: solution. [Kb NH3= 1.8 x 10-] * The…

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Q: In a 2.31 M HCOOH aqueous solution, determine the percentage of ionised HCOOH molecules. Ka 1.8 x…

A: Given,  Molar concentration of HCOOH = [HCOOH] = 2.31 M  Acid dissociation constant of HCOOH = Ka =…

Q: The hydronium ion concentration of an aqueous solution of 0.428 M hypochlorous acid (Ka = 3.50×10-8)…

A: In given question acid is weak like as CH3COOH that's why Ka is given  So use formula for Weak acid…

Q: 5. What is the approximate ratio of [A]/[HA]ions in a 0.10 M aqueous solution of H2A? Assume that…

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Q: What concentration of NH4NO3 is required to make [OH−] = 1.0 × 10−5 in a 0.200-M solution of NH3?

A: It is given that the [OH-] in a 0.200 M solution of NH3 is 1.0 ×10-5 and the concentration of NH4NO3…

Q: What is the pH of a solution of 0.25 M NACN? Ka for HCN = 4.9 x 10 10 %3D

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Q: The [H3O+] of a solution with pH = 2.7 is O 5 × 10-5 M O 9.7 × 10-1 M 9.7 M O 2 × 10-3 M 1 × 109.7 M

A: Given pH = 2.7

Q: A 0.80 M solution of Carbonic acid is prepared and is in equilibrium with its ions. The chemical…

A: Given data Initial concentration : 0.8 M Ionization constant : Ka=4.3×10-7 Equilibrium reaction…

Q: 4. Calculate the [OH-], [H3O+], pOH and pH of a 0.0750 M NH3 Ka  NH4+  = 5.70 x 10 -10

A: The [OH-], [H3O+], pOH and pH of a 0.0750 M NH3 are to be calculated. Given: [NH3] = 0.0750 M Ka…

Q: Calculate the percent ionization of propionic acid (HC3H5O2) in solutions of each of the following…

A: Given: The value of the acid dissociation constant (Ka) is 1.3 x 10-5. The concentrations of…

Q: Calculate the pH of the following aqueous solutions at 25°C: (a) 9.5 × 10-8 M NaOH, (b) 6.1 × 10-2 M…

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Q: A solution at 25°C has a hydrogen ion concentration of 2.6 x 10 M. Which of the following is TRUE? O…

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Q: The hydronium ion concentration of an aqueous solution of 0.468 M acetylsalicylic acid (aspirin),…

A: Aspirin is weak acid so it will not break into ions upto 95%. We have to use concept of ph of weak…

Q: What is [Al(H2O)5(OH)2+] in a 0.15-M solution of Al(NO3)3 that contains enough of the strong acid…

A: Al(NO3)3 give Al3+ (aq) ions Now Al3+ ions combine with H2O to form complex [Al(H2O)6]3+ We have…

Q: A 0.10 M solution of an acid has a pH of 3.0. The percent lonization is O 1.0 O 3.0 O 0.010 O 0.30

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