100% satisfaction guarantee Immediately available after payment Both online and in PDF No strings attached
logo-home
Acid-Base Titration Brief Lesson, Questions and Answers with explanations $5.99   Add to cart

Other

Acid-Base Titration Brief Lesson, Questions and Answers with explanations

 5 views  0 purchase

This a brief lesson about acid-base titration and types of titrations. I also included 10 questions and answers with explanations for your practice. If you are only interested in the questions then please check out my flashcards set named "Acid-Based Titration Questions & Answers with Explanations"

Last document update: 2 year ago

Preview 1 out of 6  pages

  • March 30, 2022
  • April 10, 2022
  • 6
  • 2021/2022
  • Other
  • Unknown
All documents for this subject (3)
avatar-seller
Nalia

Available practice questions

Flashcards 10 Flashcards
$5.49 0 sales

Some examples from this set of practice questions

1.

Which of following will raise the pH of a weak acid HA in aqueous solution? (Check all possible answers) A. Addition of water B. Addition of NaCl C. Making a buffered solution by adding NaA(s) D. Addition of HNO3 E. Titrating with KOH

Answer: E. Titrating with KOH Explanation: The addition of a strong base like KOH will raise the pH and cause it to be more basic

2.

Which indicator would be best for the titration of a weak acid (Ka=6.4 x 10^-5) with a strong base, whose pH at the equivalence point is 8.17? A. thymolphthalein (9.5-10.5) B. methyl orange (3.2-4.4) C. crystal violet (0.2-1.8) D. thymol blue (7.7-9.3)

Answer: D. thymol blue (7.7-9.3) Explanation: the pH of 8.17 will fall in that range and thus the color of the solution will turn thymol blue at the equivalence point (when number of moles of acid and base are equal)

3.

What is the pH at the half equivalence point of the titration in the previous question? A. 5.87 B.8.13 C.10.93 D.4.19

Answer: D. 4.19 Explanation: Equivalence point is when number of moles of acid and base are equal At the half-equivalence point, pH = pKa when titrating a weak acid pKa=-log Ka =- log (6.4x10^-5) =4.19

4.

A 75.0-ml sample of 0.065 M HCN (Ka=6.2x10^-10) is titrated with 0.65M NaOH. What volume of 0.65M NaOH is required to reach the stoichiometric point? A. 750 mL B. 7.50mL C. 3.75 mL D. 75.0 mL

Answer: B. 7.5mL The stoichiometric point is the equivalence point. This is a weak acid and a strong base titration. M1V1=M1V1 (0.0650M x 75ml) = 0.65M x Vol 7.5mL of NaOH

5.

Which of the following is the net ionic equation for the reaction that occurs during the titration of nitric acid with potassium hydroxide? A. H+ + OH- -> H2O B. HNO3 + H2O -> NO3- + H3O+ C. HNO3 + KOH -> K+ +NO3- + H2O D. HNO3 + OH- -> NO3- + H2O

Answer: A. H+ + OH- -> H2O Explanation: Nitric acid (HNO3) is a strong acid and potassium hydroxide (KOH) is a strong base. Thus, they will both dissociate completely or in other words separate into ions. HNO3 + KOH -> K+ + NO3- + H2O Cross out same ions on both sides so the NO3- and K+ leaving the following H+ + OH- -> H2O

The benefits of buying summaries with Stuvia:

Guaranteed quality through customer reviews

Guaranteed quality through customer reviews

Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.

Quick and easy check-out

Quick and easy check-out

You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.

Focus on what matters

Focus on what matters

Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!

Frequently asked questions

What do I get when I buy this document?

You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.

Satisfaction guarantee: how does it work?

Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.

Who am I buying these notes from?

Stuvia is a marketplace, so you are not buying this document from us, but from seller Nalia. Stuvia facilitates payment to the seller.

Will I be stuck with a subscription?

No, you only buy these notes for $5.99. You're not tied to anything after your purchase.

Can Stuvia be trusted?

4.6 stars on Google & Trustpilot (+1000 reviews)

62555 documents were sold in the last 30 days

Founded in 2010, the go-to place to buy study notes for 14 years now

Start selling
$5.99
  • (0)
  Add to cart