Tuesday
March 31, 2015

Homework Help: Chemistry

Posted by Jake on Monday, June 3, 2013 at 10:07pm.

A) Determine the pH of a 0.98 x 10^-2 mol L solution of hydrocyanic acid (HCN) Ka = 4.0 x 10^-10

B) What is the pH of a 0.243mol L solution of methylamine? (pKb for CH3NH2 = 3.30)

C) determine the pH of a buffer solution of Na2CO3 (pkb = 3.68, 0.125 M) and NaHco3 (0.35M)

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

chemistry - Hydrocyanic acid (HCN) is a much weaker acid than nitrous acid (HNO2...
Chemistry Kb question need to clarify something - the pKb for methylamine is 3....
Chemistry - i. Which of the following solutions has the lowest pH (more acidic...
Chemistry - i. Which of the following solutions has the lowest pH (more acidic...
Chemistry - i. Which of the following solutions has the lowest pH (more acidic...
chem - Calculate the pH of 0.20 M NaCN solution. NaCN ---> Na+ + CN- CN- + ...
Chemistry - How many moles of HCl must be added to 100mL of a 0.100 M solution ...
Chemistry - The pH of 0.15 mol/L of hydrocyanic acid is 5.07. Calculate Ka of ...
chemistry - 2- A 0.310 M solution of a weak acid, HX, has a pH of 2.53 a. Find ...
Chemistry - a 25.0mL sample of a 0.100M solution of aqueous trimethylamine is ...

Members