Two part question In the laboratory, one general chemistry student measured the pH of a 0.590 M aqueous solution of quinoline, C9H7N to be 9.299. Use the information she obtained to determine the Kb for this studentʻs base. Kb(experiment) =__________ While in the laboratory, another chemistry student measured the pH of a 0.590 M aqueous solution of triethylamine, (C2H5)3N to be 12.229. Kb(experiment) =_________

Determine the [H3O*] in a solution with a pH of 4.193. Your answer should contain 3 significant figures as this corresponds to 3 decimal places in a pH. [H30*]= N× 10 (Click to select) ♥ x 10 (Click to select) v M

The pKa of NH3 is estimated to be 35. Its conjugate base, the amide ion (NH2−), can be isolated as an alkali metal salt, such as sodium amide (NaNH2). Calculate the pH of a solution prepared by adding 0.100 mol of sodium amide to 1.00 L of water. Round to two decimal places. pH =   Please explain step by step answer

A 0.100 M weak base has a pH of 8.77. What is the Kb value of this base?

Solutions lons pH meter Water + 7.00 но", он 3 Strong acid А , н + 2.00 Weak acid + 4.50 A , H 0 3 Strong base M *, + OH 12 Weak base 9.50 ВН OH Formula: pH = - log[H*] a. Using the formula given, calculate the hydronium ion concentration of all the solutions in Table 1. Comment higher and explain which solution has a concentration value why?

#8 - thumbs up if you do it correctly! Be sure your answer has the correct number of significant digits as it states in the directions.

A typical vitamin C tablet (containing pure ascorbic acid, H₂C6H606) weighs 500 mg. One vitamin C tablet is dissolved in enough water to make 240.0 mL of solution. Calculate the pH of this solution. Ascorbic acid is a diprotic acid. For H₂C6H606, Ka1 = 7.9×10-5 and Ka2 = 1.6x10-12. pH = Submit Answer [References] Try Another Version 1 item attempt remaining

Consider the following data on some weak acids and weak bases: acid Ka formula name name 8 hypochlorous acid HCIO 3.0 × 10 hydrofluoric acid HF 6.8 x 10 base Kb formula -10 aniline C&H NH 4.3x 107 methylamine CH3NH2 4.4 × 10 Use this data to rank the following solutions in order of increasing pH. In other words, select a '1' next to the solution that will have the lowest pH, a '2' next to the solution that will have the next lowest pH, and so on. solution PH 0.1 M C6H5NH3Br choose one ✓ choose one 0.1 M KCI choose one ◇ 1 (lowest) 0.1 M KCIO choose one 2 0.1 M NaF choose one 3 × 4 (highest)

For H3PO3, which is actually a diprotic acid, K1-2.04 x 102 and Ka2-4.56 x 10. Calculate the pH of a 0.428 molar solution of H-PO Report your answer with 2 places past the decimal point. Type your answer..

U16V1 Question 2 Homework • Unanswered Fill in the Blanks Type your answers in all of the blanks and submit What is the pH of an aqueous solution with [H+] = 3.50x10-M? pH = Type your answer here What is the pH of an aqueous solution with (H*) = 5.20x10-M? pH = Type your answer here Unanswered A Submir [ Fullscreen 10:55 PM 5/8/2021 Cop 74 40 elete home num - backspace lock liome enter pause Tshift end