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172 solutions

Weak Acids

Q. A weak acid type indicator was found to be 60% dissociated at pH = 9. What will be the percent dissociation at pH = 8

Solved • Feb 10, 2020

Weak Acids

Q. Is the following statement true? All weak acids have the same strength: they are simply weak. a) yes b) no

Solved • Jan 30, 2020

Weak Acids

Q. What is the pH of 12.34 mL of a 0.1315 M solution of a weak monoprotic acid (HA, Ka = 1.47 x 10-6) prior to its titration with 0.1641 M Sr(OH)2?

Solved • Dec 11, 2019

Weak Acids

Q. What is the Ph of 0.010M aqueous hypoclorous acid? (Ka of HOCL =3.5x10^-8)

Solved • Dec 10, 2019

Weak Acids

Q. What is the pH of a 0.010 M solution of NR3H+Cl- solution? (Kb for NR3 = 5.9 x 10-7). a. 7.00 b. 9.11 c. 2.75 d. 11.25 e. 4.89 I think I can manipulate the formulas to find pH, I'm just not entirely sure how to write out the reaction to make an ICE table.

Solved • Dec 7, 2019

Weak Acids

Q. A solution is made that is 0.400 M H3BO3 (ka=5.4x10^-10) and 0.125 M HCNO (ka=2x10^-4). which answer approximates the pH of the solution? a. 0.28 b. 0.90 c. 2.05 d. 2.30 e. 4.38

Solved • Dec 6, 2019

Weak Acids

Q. Consider the titration of 100.0 mL of 0.220 M benzoic acid (Ka = 6.4 ✕ 10−5) with 0.110 M NaOH. Calculate the pH of the resulting solution after each of the following volumes of NaOH has been added. (Assume that all solutions are at 25°C.) 0.0mL

Solved • Nov 26, 2019