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Write the conjugate acid for each of the following bases. (a) NH2- chemPad Help . (b) CO32- chemPad Help .HCO3- .

Write the conjugate acid for each of the following bases.
(a) NH2-
chemPad
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.




.
.....NH3 . .
...

(b) CO32-
chemPad
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.




.
.....HCO3- . .
...

(c) SO42-
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.




.
.....HSO4- . .
...

(d) S2-
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.




.
.....HS- . .
...


....

2. 6.66/6.66 points All Submissions Notes Question: ZumIntro6 16.P.013. .Question part Points Submissions 1 2 3 4
1.66 1.66 1.66 1.68
1/10 1/10 1/10 1/10
Total 6.66/6.66 ...Write the conjugate base for each of the following acids.
(a) HSO3-
chemPad
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.




.
.....SO 2-
3
. .
...

(b) H2S
chemPad
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.




.
.....HS- . .
...

(c) NH3
chemPad
Help
.




.
.....NH2- . .
...

(d) HS -
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Help
.




.
.....S2- . .
...


....

3. 3.34/6.66 points All Submissions Notes Question: ZumIntro6 16.P.031. .Question part Points Submissions 1 2 3 4 5 6 7 8
0/0.83 0.83 0/0.83 0.83 0/0.83 0.83 0/0.83 0.85
6/10 1/10 2/10 1/10 2/10 2/10 0/10 1/10
Total 3.34/6.66 ...Calculate the [H+] in each of the following solutions, and indicate whether the solution is acidic or basic.
(a) [OH - ] = 5.97 10-8 M
1 M

2
acidic
basic
neutral



(b) [OH - ] = 9.07 10-6 M
3 M

4
acidic
basic
neutral



(c) [OH - ] = 7.00 10-7 M
5 M

6
acidic
basic
neutral



(d) [OH - ] = 1.49 10-12 M
7 M

8
acidic
basic
neutral




....

4. 3.34/6.66 points All Submissions Notes Question: ZumIntro6 16.P.032. .Question part Points Submissions 1 2 3 4 5 6 7 8
0/0.83 0.83 0/0.83 0.83 0/0.83 0.83 0/0.83 0.85
2/10 2/10 2/10 1/10 0/10 2/10 0/10 2/10
Total 3.34/6.66 ...Calculate the [H+] in each of the following solutions, and indicate whether the solution is acidic, basic, or neutral.
(a) [OH - ] = 4.87 10-5 M
1 M

2
acidic
basic
neutral



(b) [OH - ] = 3.23 10-9 M
3 M

4
acidic
basic
neutral



(c) [OH - ] = 6.87 10-2 M
5 M

6
acidic
basic
neutral



(d) [OH - ] = 8.91 10-5 M
7 M

8
acidic
basic
neutral




....

5. 3.34/6.66 points All Submissions Notes Question: ZumIntro6 16.P.033. .Question part Points Submissions 1 2 3 4 5 6 7 8
0/0.83 0.83 0/0.83 0.83 0/0.83 0.83 0/0.83 0.85
0/10 1/10 0/10 1/10 0/10 1/10 0/10 1/10
Total 3.34/6.66 ...Calculate the [OH - ] in each of the following solutions, and indicate whether the solution is acidic, basic, or neutral.
(a) [H+] = 8.99 10-7 M
1 M

2
acidic
basic
neutral



(b) [H+] = 1.24 10-7 M
3 M

4
acidic
basic
neutral



(c) [H+] = 6.93 10-7 M
5 M

6
acidic
basic
neutral



(d) [H+] = 1.09 10-7 M
7 M

8
acidic
basic
neutral




....

6. 6.66/6.66 points All Submissions Notes Question: ZumIntro6 16.P.035. .Question part Points Submissions 1 2 3
2.22 2.22 2.22
2/10 2/10 2/10
Total 6.66/6.66 ...For each pair of concentrations, tell which represents the more acidic solution.
(a) [H+] = 1.2 10-3 M or [H+] = 4.5 10-4 M
1
4.5 10-4
1.2 10-3



(b) [H+] = 4.3 10-2 M or [H+] = 2.6 10-3 M
2
2.6 10-3
4.3 10-2



(c) [H+] = 0.00005 M or [H+] = 0.00002 M
3
0.00005
0.00002




....

7. 0/6.66 points All Submissions Notes Question: ZumIntro6 16.P.039. .Question part Points Submissions 1
0/6.66
6/10
Total 0/6.66 ...For a hydrogen ion concentration of 2.33 10-6 M, how many decimal places should we give when expressing the pH of the solution?
1


....

8. 3.34/6.66 points All Submissions Notes Question: ZumIntro6 16.P.043. .Question part Points Submissions 1 2 3 4 5 6 7 8
0/0.83 0.83 0/0.83 0.83 0/0.83 0.83 0/0.83 0.85
3/10 2/10 0/10 2/10 0/10 1/10 0/10 2/10
Total 3.34/6.66 ...Calculate the pH corresponding to each of the hydroxide ion concentrations given below. Tell whether each solution is acidic, basic, or neutral.
(a) [OH - ] = 7.97 10-5 M
1

2
acidic
basic
neutral



(b) [OH - ] = 0.00129 M
3

4
acidic
basic
neutral



(c) [OH - ] = 2.96 10-2 M
5

6
acidic
basic
neutral



(d) [OH - ] = 8.52 10-9 M
7

8
acidic
basic
neutral




....

9. 6.66/6.66 points All Submissions Notes Question: ZumIntro6 16.P.045. .Question part Points Submissions 1 2 3 4 5 6 7 8
0.83 0.83 0.83 0.83 0.83 0.83 0.83 0.85
1/10 2/10 4/10 1/10 1/10 2/10 1/10 3/10
Total 6.66/6.66 ...Calculate the pH corresponding to each of the pOH values listed, and indicate whether each solution is acidic, basic, or neutral.
(a) pOH = 4.21
1

2
acidic
basic
neutral



(b) pOH = 9.00
3

4
acidic
basic
neutral



(c) pOH = 1.93
5

6
acidic
basic
neutral



(d) pOH = 12.3
7

8
acidic
basic
neutral




....

10. 3.34/6.66 points All Submissions Notes Question: ZumIntro6 16.P.047. .Question part Points Submissions 1 2 3 4 5 6 7 8
0/0.83 0.83 0/0.83 0.83 0/0.83 0.83 0/0.83 0.85
2/10 2/10 2/10 1/10 0/10 3/10 0/10 2/10
Total 3.34/6.66 ...For each hydrogen ion concentration listed, calculate the solution as the concentration of hydroxide ion in the solution. Indicate whether each solution is acidic or basic.
(a) [H+] = 4.72 10-8 M
1 M

2
acidic
basic
neutral



(b) [H+] = 8.84 10-3 M
3 M

4
acidic
basic
neutral



(c) [H+] = 6.94 10-5 M
5 M

6
acidic
basic
neutral



(d) [H+] = 1.35 10-12 M
7 M

8
acidic
basic
neutral




....

11. 0/6.66 points All Submissions Notes Question: ZumIntro6 16.P.049. .Question part Points Submissions 1 2 3 4
0/1.66 0/1.66 0/1.66 0/1.68
2/10 0/10 0/10 0/10
Total 0/6.66 ...Calculate the hydrogen ion concentration, in moles per liter, for solutions with each of the following pH values.
(a) pH = 8.96
1 M

(b) pH = 6.75
2 M

(c) pH = 1.12
3 M

(d) pH = 6.89
4 M



....

12. 0/6.66 points All Submissions Notes Question: ZumIntro6 16.P.050. .Question part Points Submissions 1 2 3 4
0/1.66 0/1.66 0/1.66 0/1.68
1/10 0/10 0/10 0/10
Total 0/6.66 ...Calculate the hydrogen ion concentration, in moles per liter, for solutions with each of the following pH or pOH values.
(a) pOH = 4.88
1 M

(b) pH = 5.31
2 M

(c) pH = 9.16
3 M

(d) pOH = 3.35
4 M



....

13. –/6.66 points Notes Question: ZumIntro6 16.P.051. .Question part Points Submissions 1 2 3 4
0/1.66 0/1.66 0/1.66 0/1.68
0/10 0/10 0/10 0/10
Total 0/6.66 ...Calculate the hydrogen ion concentration, in moles per liter, for solutions with each of the following pOH values.
(a) pOH = 4.88
1 M

(b) pOH = 6.73
2 M

(c) pOH = 12.55
3 M

(d) pOH = 1.28
4 M



....

14. 0/6.66 points All Submissions Notes Question: ZumIntro6 16.P.052. .Question part Points Submissions 1 2 3 4
0/1.66 0/1.66 0/1.66 0/1.68
6/10 0/10 0/10 0/10
Total 0/6.66 ...Calculate the hydroxide ion concentration, in moles per liter, for solutions with each of the following pH or pOH values.
(a) pH = 1.29
1 M

(b) pOH = 1.29
2 M

(c) pOH = 11.11
3 M

(d) pH = 12.50
4 M



....

15. 5.07/6.76 points All Submissions Notes Question: ZumIntro6 16.P.053. .Question part Points Submissions 1 2 3 4
1.69 1.69 0/1.69 1.69
4/10 1/10 8/10 3/10
Total 5.07/6.76 ...Calculate the pH of each of the following solutions from the information given.
(a) [H+] = 4.83 10-2 M
1

(b) pOH = 4.47
2

(c) [OH - ] = 9.87 10-3 M
3

(d) [H+] = 1.14 10-8 M
4



.... .

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