A 130.0 −mL buffer solution is 0.105 M in NH3 and 0.135 M in NH4Br. A) What...

90.2K

Verified Solution

Question

Chemistry

A 130.0 −mL buffer solution is 0.105 M in NH3 and 0.135 M inNH4Br.

A) What mass of HCl could this buffer neutralize before thepH fell below 9.00? ​answer to this was0.088g

B) If the same volume of the buffer were 0.265 M in NH3 and0.395 M in NH4Br, what mass of HCl could be handled before the pHfell below 9.00?

Answer & Explanation Solved by verified expert
3.7 Ratings (367 Votes)
We know that pOH pKb log NH4NH3 474log01350105485 pH 14485 915 When the pH at pH 9 is pOH 1495 pOH pKb log NH4NH3 5 474log NH4NH3 NH4NH3 182 It is also equal to moles of NH4 moles of NH3 182 1 When HCl is added NH3 reacts with HCl NHaqHClaqNHClaq NH3 is consumed and NH4 is added    See 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