8_8_ConceptTests_Ch19

8_8_ConceptTests_Ch19 - E. Since sodium hydroxide is a...

Info iconThis preview shows pages 1–4. Sign up to view the full content.

View Full Document Right Arrow Icon
Concept Test A buffer is prepared by adding 100 mL of 0.50 M sodium hydroxide to 100 mL of 0.75 M propanoic acid. Is this a buffer solution, and if so, what is its pH? A. It is a buffer, pH > p K a of propanoic acid. B. It is a buffer, pH < p K a of propanoic acid. C. It is a buffer, pH = p K a of propanoic acid. D. It is a buffer, pH = p K b of sodium propanoate. E. Since sodium hydroxide is a strong base, this is not a buffer.
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Concept Test A buffer is prepared by adding 100 mL of 0.50 M sodium hydroxide to 100 mL of 0.75 M propanoic acid. Is this a buffer solution, and if so, what is its pH? (see Exam 2 solutions, problem 9) A. It is a buffer, pH > p K a of propanoic acid. B. It is a buffer, pH < p K a of propanoic acid. C. It is a buffer, pH = p K a of propanoic acid. D. It is a buffer, pH = p K b of sodium propanoate.
Background image of page 2
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Background image of page 4
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: E. Since sodium hydroxide is a strong base, this is not a buffer. Concept Test A 20.0-mL sample of 0.30 M HClO was titrated with 0.30 M NaOH. The following data were collected during the titration. What is the K a for HClO? mL NaOH added: 5.00 10.00 15.00 20.00 pH: 6.98 7.46 7.93 10.31 A. 1.1 10-7 B. 3.5 10-8 C. 1.2 10-8 D. 4.9 10-11 E. None of the above Concept Test A 20.0-mL sample of 0.30 M HClO was titrated with 0.30 M NaOH. The following data were collected during the titration. What is the K a for HClO? mL NaOH added: 5.00 10.00 15.00 20.00 pH: 6.98 7.46 7.93 10.31 A. 1.1 10-7 B. 3.5 10-8 (see Exam 2 solutions, problem 12) C. 1.2 10-8 D. 4.9 10-11 E. None of the above...
View Full Document

Page1 / 4

8_8_ConceptTests_Ch19 - E. Since sodium hydroxide is a...

This preview shows document pages 1 - 4. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online