chemhelp5 You are asked to prepare a 200.0 mL buffer solution of pH 8.52 from the following hypohalous acids:Hypobromous acid, HBrOHypochlorous acid, HCIOHypoiodous acid, HIO(Ka = 2.0 × 10-⁹)(Ka = 3.0 × 10-8)(Ka = 2.0 x 10-11)The available reagents are 5.0 M each of the acids and solids NaCIO (74.44 g/mol), NaBrO (118.9g/mol) and NalO (165.9 g/mol). 1.What should be the concentration of the salt if the required concentration of the acid component is 1.00 M?a.0.66 Mb.1.5 MC.6.6 Md.9.9 M2. How much of the acid will you use?a.25 mLb.40 mLC.10 mLd.5.0 mLHow much of the salt is needed?a.40 gb.24 gC.22 gd.16 g4.How many grams of sodium acetate (82.03 g/mol) must be added to 1.00 L of 0.50 M solution of acetic acid to produce abuffer solution at pH 4.00? (Ka = 1.75 × 10-5)a.7.2 gb.230 gC.24 gd.0.0011 g5.After preparing the buffer solution above, 20.0 mL of 0.85 M NaOH was added. What will be the new pH of the buffersolution?a. 5.42b. 4.09C. 4.01d.3.993.

Answered: Image /qna-images/answer/1f1c3bb0-0591-440b-b3f2-d25b7cc5f932.jpg

1. What should be the concentration of the salt if the required concentration of the acid component is 1.00 M? a. 0.66 M b. 1.5 M C. 6.6 M d. 9.9 M How much of the acid will you use? a. 25 mL b. 40 mL C. 10 mL d. 5.0 mL 3. How much of the salt is needed? a. 40 g b. 24 g C. 22 g d. 16 g 2.

1. What should be the concentration of the salt if the required concentration of the acid component is 1.00 M? a. 0.66 M b. 1.5 M C. 6.6 M d. 9.9 M How much of the acid will you use? a. 25 mL b. 40 mL C. 10 mL d. 5.0 mL 3. How much of the salt is needed? a. 40 g b. 24 g C. 22 g d. 16 g 2.

Chemistry

9th Edition

ISBN:9781133611097

Author:Steven S. Zumdahl

Publisher:Steven S. Zumdahl

Chapter15: Acid-base Equilibria

Section: Chapter Questions

Problem 10Q

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Question

chemhelp5

You are asked to prepare a 200.0 mL buffer solution of pH 8.52 from the following hypohalous acids:
Hypobromous acid, HBrO
Hypochlorous acid, HCIO
Hypoiodous acid, HIO
(Ka = 2.0 × 10-⁹)
(Ka = 3.0 × 10-8)
(Ka = 2.0 x 10-11)
The available reagents are 5.0 M each of the acids and solids NaCIO (74.44 g/mol), NaBrO (118.9
g/mol) and NalO (165.9 g/mol).

1.
What should be the concentration of the salt if the required concentration of the acid component is 1.00 M?
a.
0.66 M
b.
1.5 M
C.
6.6 M
d.
9.9 M
2. How much of the acid will you use?
a.
25 mL
b.
40 mL
C.
10 mL
d.
5.0 mL
How much of the salt is needed?
a.
40 g
b.
24 g
C.
22 g
d.
16 g
4.
How many grams of sodium acetate (82.03 g/mol) must be added to 1.00 L of 0.50 M solution of acetic acid to produce a
buffer solution at pH 4.00? (Ka = 1.75 × 10-5)
a.
7.2 g
b.
230 g
C.
24 g
d.
0.0011 g
5.
After preparing the buffer solution above, 20.0 mL of 0.85 M NaOH was added. What will be the new pH of the buffer
solution?
a. 5.42
b. 4.09
C. 4.01
d.
3.99
3.

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