QUESTION 4 Ko (NH3) 1.8 x 10-5 If we mix 20.0 m of 0.40 M NH3 with 40.0 ml of 0.20 M HCL the solution pH will be equal to notations) QUESTIONS at equilibrium (type your answer, do not use scientific Ka (HF) 72x 10. Now we mix 15.0 ml, of 0.24 M HF and 15.0 ml of 0.24 M NaOH. At equilibrium, the pH of the mixture will be equal to (type your answer; do not use scientific notations)

Chemistry: Principles and Practice
3rd Edition
ISBN:9780534420123
Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer
Publisher:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer
Chapter16: Reactions Between Acids And Bases
Section: Chapter Questions
Problem 16.87QE
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**Question 4**

\( K_b (\text{NH}_3) = 1.8 \times 10^{-5} \)

If we mix 20.0 ml of 0.40 M NH\(_3\) with 40.0 ml of 0.20 M HCl, the solution pH will be equal to _______ at equilibrium. (Type your answer; do not use scientific notations.)

[Text box for answer]

**Question 5**

\( K_a (\text{HF}) = 7.2 \times 10^{-4} \) Now we mix 15.0 ml of 0.24 M HF and 15.0 ml of 0.24 M NaOH. At equilibrium, the pH of the mixture will be equal to _______.

[Text box for answer]

There are no graphs or diagrams associated with these questions, just the numerical and equation-based information provided.
Transcribed Image Text:**Question 4** \( K_b (\text{NH}_3) = 1.8 \times 10^{-5} \) If we mix 20.0 ml of 0.40 M NH\(_3\) with 40.0 ml of 0.20 M HCl, the solution pH will be equal to _______ at equilibrium. (Type your answer; do not use scientific notations.) [Text box for answer] **Question 5** \( K_a (\text{HF}) = 7.2 \times 10^{-4} \) Now we mix 15.0 ml of 0.24 M HF and 15.0 ml of 0.24 M NaOH. At equilibrium, the pH of the mixture will be equal to _______. [Text box for answer] There are no graphs or diagrams associated with these questions, just the numerical and equation-based information provided.
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