Logo
Home Study Material Contact Search
AI Chat FREE
  1. sciences
  2. chemistry
  3. a buffer is prepared by adding 108 ml of 0.48 m nh

A buffer is prepared by adding 108 mL of 0.48 M NH3 to 143 mL...

Free

70.2K

Verified Solution

Question

Chemistry

A buffer is prepared by adding 108 mL of 0.48 M NH3 to 143 mL of0.30 M NH4NO3. What is the pH of the final solution?

Answer & Explanation Solved by verified expert
4.4 Ratings (833 Votes)

no of moles of NH3 = molarity * volume in L

                                = 0.48*0.108   = 0.05184 moles

no of moles of NH4Cl   = molarity * volume in L

                                    = 0.3*0.143   = 0.0429moles

Pkb of NH3 = 4.75

   POH = Pkb + log[NH4NO3]/[NH3]

           = 4.75 + log0.0429/0.05184

          = 4.75-0.0822   = 4.6678

PH   = 14-POH

        = 14-4.6678   = 9.3322 >>>>answer
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

Q

Which angle measure is equivalent to 144 A B C C 12 5 4 5...

Geometry
Q

(x+5y)^21 expand using Pascal's triangle

Basic Math
Q

Define what the scientific method is. Describe each step of the scientific method. Describe how you might...

Psychology
Q

?PART 1 1a.?Go to the website of these three companies; ExxonMobil, Walmart & Vista Equity Partners and...

Finance
Q

You and your friends decide to go to a scary Halloween haunted house, whereyou get...

Biology
Q

41 A block of mass 20 kg is acted upon by a force F 30...

Physics
Q

36 In 2000 tuition and fees for an undergrad resident to attend the University of...

Geometry
Q

A test of significance with a = 0.05 results in a p-value of 0.1. What...

Basic Math
Q

140000 $19000 363,200 121600 Assume that June's...

Accounting
Q

The Jackson Company has invested in a machine that cost $75,000, that has a useful...

Accounting
Q

Assume that Lucas's marginal tax rate is 32 percent and his tax rate on dividends...

Accounting
Q

An investor owns some stock in? Harry's Pottery Inc. The stock recently underwent a 55?-for-44...

Finance