What is the pH of 0.015 M aqueous benzoic acid (C 5H 6CO 2H)? (pKa = 4.20)   a. 4.20   b. 3.03   c. 6.02   d. 12.18   e. 1.82

Q: Bleach and milk of magnesia are both bases. Their [H'] values are 2.0 x 10 mol/L and 4.1 x 10 0…

A: pH is the negative logarithm of [H+]. Higher the proton concentration in a solution, lower will be…

Q: . Vinegar and lemon juice are both acids. Their (H*] values are 5.0 x 10 mol/L and IX 102 mol/L,…

A: Given that  [H+] of lemon is 5×10-3mol/L [H+] of vinegar is 1×10-2mol/L Formula used pH=-logH+ Both…

Q: What is the hydrogen ion concentration in a solution having a pOH of 3.62? a. 2.6' 10-¹¹ M b. 4.2…

A: Given,pOH = 3.62 we know,=> pH + pOH = 14=> pH = 14 - pOH = 14 - 3.62 = 10.38 we know, =>…

Q: 7. A 0.10 M solution of a weak monoprotic acid, HA, nas a pH of 3.14. What is the acid-ionization…

A: Note : Since you have posted multiple questions, we are entitled to answer the first only. Please…

Q: The pH of an aqueous solution of weak monoprotic acid is 3.15. What is the initial…

A: All the details are explained in handwritten solution.

Q: A 0.303 M solution of hydrogen sulfide has a pH of 3.80. What is the Ka of hydrogen sulfide? a. 1.6…

A:

Q: The pH of a solution of 0.1 M sodium octanoate (CH3(CH2)3COONa; pKa of octanoic acid = 4.89) is: a.…

A:

Q: solution? oints) A 2.0-liter solution contains 0.15 M NH3 (Kb = 1.8 x 10-5) and 0.55 M NH4F. What is…

A: Given:Concentration of NH3 = 0.15 M                       ( 2 sig fig)Concentration of NH4F = 0.55 M…

Q: Sodium benzoate, NaC,H,COO, is used as preservatives in vinegar, soy sauce, etc. The pH of a 0.10 M…

A:

Q: Lactic acid, HC3H5O3, is found in sour milk. What is the pH of 0.30 Mlactic acid? (Ka = 1.4 ××…

A:

Q: 4. The H+ ion concentration in a bottle of wine is 4.1 X 10-4 M. What is the pH of the wine? A.…

A: The pH is a method that helps in the determination of the acidity and the basicity of the solution.…

Q: Calculate the pH of a 0.30 M solution of NH 4Cl (Kb for NH 3 = 1.8 x 10 -5). a. 11.67 b.…

A: NH4Cl is the salt weak base NH4OH and a strong acid HCl therefore hydrolysis constant Kh will be…

Q: Using the equation to calculate the quotient [AT]/[HA] at three different pH values. pH = 4.164 pH =…

A: We know, PH  = -log[H+]

Q: 3. What is the pH of an aqueous solution when the concentration of hydrogen ion is 6.5 x 10-5 M?…

A: pH :-  The negative logarithm to the base 10 of hydrogen ion concentration expressed in mol/L of a…

Q: Which of the following has the highest pH?   a. 1 M NaCl       b.   1 M HI            (strong…

A: acids has pH less than 7   base has pH more than 7

Q: What is the hydronium-ion concentration of a 0.30 M solution of HCN (K=4.9 × 10-10) at 25°C? a. 1.7…

A: The concentration of HCN is 0.30M The acid dissociation constant Ka is 4.9 × 10-10 Using the data we…

Q: 7. Find the pH of a 0.40 M ammonium chloride (NH4C) solution? (K₁(NH3) 5) A. 11.42 B.9.18 C. 4.82…

A:

Q: A solution of HCIO4 was found to have a pH of 0.14. What is the concentration of HCIO4? a. 7.2 x…

A: HClO4 solution has a pH of 0.14 .We have to calculate the concentration of HClO4 solution .

Q: The pH of a certain red wine is 3.60. What is its hydronium ion concentration?

A: Since the pH of solution is given by  pH = -log[H+]  where [H+]  = hydronium ion concentration

Q: 5.796

A: Kb = 10-pKb  Kb = 10-5.796 Kb = 1.6 • 10^-6

Q: The pH of 0.20 M HNO3 is O a. 0.63 O b. 1.58 O C. 0.70 O d. 0.20

A: pH  =  - log [H+ ]  Strong acids undergo complete ionisation in solution.  Thus, [H+] =…

Q: What is the pH of 0.80 M KHCO3? a. 3.2 b. 5.2 C. 8.3 d. 8.8 e. 10.8 K= 5/

A: Here, we have to calculate the pH of 0.80 M KHCO3.

Q: A 0.408 M solution of benzoic acid has a pH of 2.30. What is the Ka of benzoic acid?   a. 4.21 b.…

A: Answer:- this question is answered by using the simple concept of calculation of Ka value using the…

Q: 211. What is the a. 0.0016 M b. 0.0032 M c. 0.032 M d. 0.016 M e. 0.16 M concentration of NaOH in a…

A: Given,pH of the solution = 11.5Volume of the solution = 2.0 L

Q: The ionization constant, Ka, for benzoic acid is 6.28 x 105. What is the pK, of this acid? a. 1.59 x…

A: Benzoic acid [C6H5COOH] is a monoprotic weak acid, in solution it partially ionizes and gives an…

Q: What is the pH of a 0.250 M sulfurous acid solution? H₂SO3 + H₂O H3O+ + HSO3 K₁₁ A. 1.21 B. 0.054 C.…

A: We have to calculate the pH of  0.250 M sulfurous acid solution

Q: 9. Calculate the pH of a 0.10 M aqueous solution of acetic acid. (CH3COOH, 60.02 g/mol, K₂ = 1.8 x…

A: à

Q: What is the pH of a 0.2M monoprotic acid whose Ka is 5.7 x 10-4? a. 2.5 b. 0.83 c. 2.0 d. 1.8

A: Given data,Molarity of acid=0.20MKa=5.7×10-4

Q: A 0.355 M solution of bisulfide has a pH of 10.00. What is the Kb of bisulfide?   a. 2.8 × 10-8…

A:

Q: Butyric acid is responsible for the odor in rancid butter. A solution of 0.25 M butyric acid has a…

A: Given that,The concentration of butyric acid,The pH of the solution = Ka for the acid = ?

Q: What is the pH of 0.1M Na2HPO4. if,  pk1=4,   pK2=7,  pK3=11?

A: What is the pH of 0.1M Na2HPO4. if,  pk1=4,   pK2=7,  pK3=11?

Q: A 0.100 M solution of nitrous acid (HNO2) had a pH of 2.07. What is the Ka value for nitrous acid.…

A: We are given Nitrous acid and its pH. We have to find Ka. Concentration of nitrous acid = 0.1 M

Q: What is the pH of 0.025 M aqueous acetate ion? (Kb of CH3CO2– = 5.6 ×× 10–10)

A: In this question, we have to find out the correct answer of given problem by the help of the…

Q: Calculate the pH of a 0.50 M aqueous solution of HF. (K₂ 7.2 x 104) A. 3.6 x 10-4 B. 0.019 C. 1.7 D.…

A: Given: The Ka for HF = 7.2 × 10-4 We have to calculate the pH of a 0.50 M aqueous solution of HF.

Q: What is the pH of .00055 M soln of NaOH?   A. 3.3 B. 1.3 E-3 C. 10.7 D. 1.55 E-7

A: Given  [ OH - ]   = 0.00055 M   PH         = ?

Q: If the pka of HCHO2 is 3.74 and the pH of an HCHO2/NaCHO2 solution is 3.74, which of the following…

A: Buffer is a solution prepared by mixing a weak acid with its conjugate base or a weak base with its…

Q: 0.215 M solution of acetate has a pH of 9.00. What is the Kb of acetate?

A:

Q: The pH of 0.125 M Na2X is 11.15 and the pH of 0.125 M H₂X is 2.55. Calculate pKai and pKaz for H₂X.

A: The pH of a solution is used to determine the acidity or alkalinity of a solution. The pH is simply…

Q: The pH of a detergent is 8.51. What is the H+ concentration of the detergent? a. 5.1 x 10-8 mole/L…

A: ⊙we know that,       ⊗PH=-log[H+]       ⊗[H+]=10-PH

Q: What is the pH of a solution made of 0.IM acetic acid (pka = 4.8)? %3D О а. 2.9

A: We have given that  what is pH of a solution made of 0.1M acetic acid (pKa = 4.8 )    pH of solution…

Q: Calculate the pH of a 1000 mL solution prepared by dissolving in water 0.600 mol of a weak acid HA…

A: Interpretation -  To determine the pH of a 1000 mL solution prepared by dissolving in water 0.600…

Q: What is the pH of 0.010 M aqueous hypochlorous acid? (K, of HOCI=3.5 x 10-8) a. 4.73 b. 7.45 c. 4.50…

A: The concentration of the hypochlorous acid is [HOCl]=0.010M Ka=3.5×10-8 pH=?

Q: concentration of CO3-

A: 1. Here H2CO2 and Na2CO3 To produce CO32-. 2. We are given with the two PKa values and we have to…

Q: What is the pH of a 0.379 M solutiôn of roxyla a. 0.42 b. 5.96 с. 3.19 O d. 6.38 O e. 4.2 x 10-7

A: Given, Molarity = 0.379 M Ka = 1.1 x 10-6  PH= ?