Chemistry Homework Help

24/7 Chemistry Homework Help

Get step-by-step solutions from expert tutors.

How it works?

Ask a question

Type, take a picture, or paste your question with all necessary details to ensure high-quality responses.

Get an answer in less than 24hrs

Once our tutors receive the question, they'll begin. You'll get an email once the solution is ready.

Get Notified

We will send you email and text notification to let you know when your question is answered.

Browse Homework Solutions

85 solutions

Equivalence Point

Q. Predict whether the equivalence point of each of the following titrations is below, above, or at pH = 7. KOH titrated with HBr a) below pH = 7 b) above pH = 7 c) at pH = 7

Solved • Feb 27, 2020

Equivalence Point

Q. Predict whether the equivalence point of each of the following titrations is below, above, or at pH = 7. NH3 titrated with HCl a) below pH = 7 b) above pH = 7 c) at pH = 7

Solved • Feb 27, 2020

Equivalence Point

Q. Predict whether the equivalence point of each of the following titrations is below, above, or at pH = 7. NaHCO3 titrated with NaOH a) below pH = 7 b) above pH = 7 c) at pH = 7

Solved • Feb 27, 2020

Equivalence Point

Q. 50.0 mL of 0.0018 M aniline ( a weak base) is titrated with 0.0048 M HNO3. How many mL of the acid are required to reach the equivalence point? a) 4.21 mL b) This is bad titration as HNO3 is not a strong acid. c) 133 mL d) 18.8 mL

Solved • Mar 12, 2020

Equivalence Point

Q. Determine the volume in mL of 0.2 M NaOH(aq) needed to reach the half equivalence (stoichiometric) point in the titration of 22.2 mL of 0.22 M C6H5COOH(aq). Enter your answer with one decimal place. The Ka of benzoic acid is 6.5 x 10^-5.

Solved • Mar 9, 2020

Equivalence Point

Q. A volume of 60.0 mL of aqueous potassium hydroxide (KOH) was titrated against a standard solution of sulfuric acid (H2SO4). What was the molarity of the KOH solution if 23. 7 mL of 1.50 M H2SO4 was needed? The equation is 2KOH(aq) + H2SO4(aq) → K2SO4(aq) + 2H2O(I). Express your answer with the appropriate units.

Solved • Feb 27, 2020

Equivalence Point

Q. If a 56.19 mL sample of acetic acid (HC2H3O2) is titrated to the equivalence point with 94.32 mL of 0.113 M KOH, what is the pH of the titration mixture? (For HC2H3O2 , Ka = 1.82 x 10-5) (Hint: remember both consider both the dilution factor and the appropriate equilibrium.) Correct 8.80

Solved • Mar 2, 2020