The Ka of CH3COOH is 4.75x10-5 and the Kb of NH3 is 1.8x10-5 estimate the pH of an NH4CH3 COO solution.

Calculate the pH of 1.00M acetic acid, HC2H3O2(aq). (Ka = 1.8 x 10-5)

Enter your answer in the provided box. Determine the pH of (a) a 0.20 M NH3 solution. (b) a solution that is 0.20 M NH3 and 0.35 M NH,CI. K, for NH, is 1.8 x 10-5

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 is 1.0 x 10⎯10?

The pH of a solution of CH3CH₂NH2 is 12.25 at 25 °C. What was the initial concentration for this solution if the K for CH3CH₂NH₂ is 5.6 x 10-4 at this temperature? W You may assume that the value of Kw at this temperature has two significant figures.

The pKa of a weak acid, HA is 8.60, for a 0.100 M HA solution: (A) it is acidic (B) it is basic (C) pH = 8.60 (D) pH = 4.30

If 2.02 g of H2C2O4.2H20 requires 29.8 mL of NaOH(aq) in a titration to reach the end point, calculate the molarity of the basic solution.

An environmental technician collects a sample of rainwater.Back in the lab, her pH meter isn’t working, so she uses indicatorsolutions to estimate the pH. A piece of litmus paper turns red,indicating acidity, so she divides the sample into thirds and ob-tains the following results: thymol blue turns yellow; bromphe-nol blue turns green; and methyl red turns red. Estimate the pHof the rainwater.