14-8.55=5.45 6. A 0.15M solution of a weak acid has a pH of 1.25. What is...
Calculate the pH for the following weak acid. A solution of HCOOH has 0.15M HCOOH at equilibrium. The K a for HCOOH is 1.8× 10 −4 . What is the pH of this solution at equilibrium? Express the pH numerically.
Question 4 Calculate the [+] of a solution with pH = 5.45 O 8.55 M 2.45 10-6 M O 3.55 x 10-6 M O 3.6 x 10-5M 2.82 x 105 M
Terephthalic (C8H6O4) is a diprotic acid with pka's 3.51 and 4.82. a. What is the pH of a 0.15M solution of this acid? (write answer to hundredths place) b. What is the concentration of C8H4O4-2 in a 0.15 M solution of this acid? (write answer to three significant figures and use "E" to write exponent) Terephthalic C3H604) is a diprotic acid with pka's 3.51 and 4.82. a. What is the pH of a 0.15M solution of this acid? ( write...
A 0.048 M solution of an unknown weak acid, HA, has a pH = 2.75. What is the hydrogen ion concentration of this solution? Answer in scientific notation and be sure to include your units. (Scientific notation: Ex. 2.4 x 103 = 2.4E3) HA(aq) + H+ (aq) + A (aq) Answer: A 0.048 M solution of an unknown weak acid, HA, has a pH = 2.75. What is the value of the acid dissociation constant, K ? Answer in scientific...
A 0.200M solution of a weak acid has a pH of 3.15. What is the value of Ka for the acid?
Please answer these question: _ An aqueous solution of a weak acid, HWk (pKa=5.25), has a pH of 4.53 . calculate the molarity of the weak acid. _ A 0.15M solution of a weak base was found to have a pH =9.26 . calculate the Kb for this base.
14.) A 0.175 M solution of a weak monoprotic acid has a pH of 3.25. Calculate the Ka and pKa for the acid.
Calculate the pH for each of the following conditions: a. 0.15M acetic acid b. What is the pH of the resulting solution if 30.00 mL of 0.15M acetic acid is added to 10.00 mL of 0.15 M NaOH? Assume that the volumes of solutions are additive, Ka = 1.8*10^-5 for CH3CO2H c. What is the pH of a solution made by mixing 30.00 mL of 0.15M acetic acid with 30.00 mL oof 0.15M KOH? Assume that the volumes of the...
Terephthalic (C8H6O4) is a diprotic acid with pka's 3.51 and 4.82. a. What is the pH of a 0.15M solution of this acid? [x1] ( write answer to hundredths place) b. What is the concentration of C8H4O4-2 in a 0.15M solution f this acid? [x2] ( write answer to three significant figures and use "E" to write exponent) I think (a) pH is 2.18 but I need concentration.
A 0.013 M solution of a weak acid (HA) has a pH of 4.38. What is the K, of the acid? Ka = 10 (Enter your answer in scientific notation.)