Logo
Home Study Material Contact Search
AI Chat FREE
  1. sciences
  2. chemistry
  3. consider the titration of 60.0 ml of 0.100 m nh3 k

Consider the titration of 60.0 mL of 0.100 M NH3 Kb= 1.8 x 10^-5 with 0.150...

Free

60.1K

Verified Solution

Question

Chemistry

Consider the titration of 60.0 mL of 0.100 M NH3 Kb= 1.8 x 10^-5with 0.150 M HCl. Calculate the pH after the following volumes oftitrant have been added: 40.5 mL & 60.0 mL

Answer & Explanation Solved by verified expert
4.5 Ratings (865 Votes)

mmoles of NH3 = 60.0 x 0.100 = 6.00

Kb = 1.8 x 10^-5

pKb = 4.74 , pKa = 9.26

a)

mmoles of HCl = 40.5 x 0.150 = 6.075

NH3 +   HCl    ------------>   NH4+Cl-

6.00       6.075                         0

0           0.075                       6.00

here strong acid remains. so

concentration of H+ = 0.075 / 60 + 40.5

                               = 7.46 x 10^-4 M

pH = - log (7.46 x 10^-4)

pH = 3.13

b)

mmoles of HCl = 60 x 0.150 = 9

NH3 +   HCl    ------------>   NH4+Cl-

6.00       9.00                         0

0          3.00                       6.00

here strong acid remains. so

[H+] = 3 / 120 = 0.025 M

pH = 1.60
Get Answers to Unlimited Questions

Join us to gain access to millions of questions and expert answers. Enjoy exclusive benefits tailored just for you!

Membership Benefits:
  • Unlimited Question Access with detailed Answers
  • Zin AI - 3 Million Words
  • 10 Dall-E 3 Images
  • 20 Plot Generations
  • Conversation with Dialogue Memory
  • No Ads, Ever!
  • Access to Our Best AI Platform: Flex AI - Your personal assistant for all your inquiries!
Become a Member

Other questions asked by students

Accounting
1.2K views

At the beginning of 2018, the Redd Company had the following balances in its accounts:    Cash $ 8,300 Inventory 2,300 Common stock 7,800 Retained...

Physics
1.2K views

Q 37 O When a point source of light is placed at a depth h...

Basic Math
1.2K views

In a thunderstorm the formula M t 5 1 gives the approximate distance M in...

Statistics
1.2K views

Determine the correct graph for the following equation x 3 4 y 2 9 De...

Statistics
1.2K views

responses of 10 students who were asked how many chapters of their Perception textbook they...

Algebra
1.2K views

Consider the initial value problem t C a Find the eigenvalue X an eigenvector 1...

Accounting
1.2K views

E23-7 Compute materials and labor variances ...

Accounting
1.2K views

Question 3 of 5 0.21 On January 1,2025. Riverbed Company contracts to lease...

Accounting
1.2K views

Please fully complete question 4: 1 The balance of Prepaid Rent, $5,880, represents...

Accounting
1.2K views

A manufacturer uses activity-based costing to assign overhead cost to products. Budgeted cost information for...

Accounting
1.2K views

Under Risk-premium Analysis, if the borrower increases its loan amount from 10 million to 100...

Finance
1.2K views

11. Suppose that a fund that tracks the S&P has mean E(Rm) = 16% and...