Pyridine has Kb = 1.7 x 10-9. What is the pH of a 0.10 M pyridine solution?

What is the pH of a 0.0100 M  solution of analine (C6H5NH2) , a weak base.     Kb= 4.0 x10-10

The pH of a 0.76M solution of pentanoic acid (HCH,O2) is measured to be 2.48. Calculate the acid dissociation constant K of pentanoic acid. Round your answer to 2 significant digits. K₁ = 0 x10 ㅁ X G

A solution is prepared at 25 °C that is initially 0.69M in dimethylamine ((CH3)2NH), a weak base with K = 5.4 × 10-4, and 2.4M in dimethylammonium ((CH3)2NH₂CI). Calculate the pH of the solution. Round your answer to 2 decimal places. chloride pH = ☐

Calculate the pH at 25 °C of a 0.54M solution of potassium butanoate (KC3H,CO₂). Note that butanoic acid (HC₂H,CO₂) is a weak acid with a pK of 4.82 a Round your answer to 1 decimal place. pH = X 3

What is the pH of 0.80 M methylamine (CH3NH2). Kb = 4.4x10-4.

What is the pH of a 0.300 M solution of aniline (C₆H₅NH₂, Kb = 4.3 × 10⁻¹⁰)?

نقطتان )2( The pH of a 1.00 M Solution -1 of Nitrous acid HNO2 (pKb =10.6) is

Given that methylamine, CH3NH2, has a Kb of 4.4 x 10-4, what is the pH of a 0.20 M aqueous solution of methylamine?

4 A solution is prepared at 25 °C that is initially 0.29M in nitrous acid (HNO₂), a weak acid with K₁=4.5 × 10 Calculate the pH of the solution. Round your answer to 2 decimal places. pH -0 = X Ś and 0.26M in sodium nitrite (NaNO₂) I