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10F - CHEM 126101 - GEN CHEMISTRY II
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NJIT
/ ► 2010F - CHEM 126101
/ ► Quizzes
/ ► Chapter 16 Regular Homework: Acids I
/ ► Review of attempt 7
Chapter 16 Regular Homework: Acids I
Review of attempt 7
Finish review
Started on
Sunday, 17 October 2010, 11:51 PM
Completed on Sunday, 17 October 2010, 11:53 PM
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mL of solution
...
The Ka for CH3COOH is 1
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As usual, report pH to 2 decimal places
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It is a buffer solution!
Correct
Marks for this submission: 1/1
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mL of solution
...
Question 3
Marks: 1
Calculate the pH of a solution made by adding 44
...
mL of 0
...
Hint what kind of solution is made?
The Ka for HCOOH is 1
...
As usual, report pH to 2 decimal places
...
Question 4
Marks: 1
Calculate the pH of a solution made by adding 35
...
mL of 0
...
Answer:
Buffer solution!
Correct
Marks for this submission: 1/1
...
Question 6
Marks: 1
When
small
amount
of acid is added
to a non-buffered
solution,
there
is a large change in pH
...
com
on 05-23-2022
04:54:23 GMT
-05:00
https://www
...
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Calculate the pH when 23
...
0019 M HCl is added to 100
...
Comment and hint in
the general feedback
...
Yet, you will see
that the pH change in the buffered solution is smaller
...
)
Correct
Marks for this submission: 1/1
...
10 M sodium acetate and 0
...
Calculate the initial pH of
this solution
...
8 x 10-5 M
...
Answer:
Correct
Marks for this submission: 1/1
...
Calculate the pH when 20
...
022 MHCl is added to 100
...
Answer:
Correct
Marks for this submission: 1/1
...
100 M NaOH are needed to neutralize completely 55
...
0800 M HCl
...
Question 10
Marks: 1
Calculate how many mL of 0
...
0 mL of 0
...
Answer:
Correct
Marks for this submission: 1/1
...
100 M NaOH are needed to neutralize completely 43
...
0200 M acetic
acid
...
Question 12
Marks: 1
Titration of Strong Acid
This study source was downloaded by 100000843596393 from CourseHero
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0 mL of 0
...
400 M NaOH
...
Question 13
Marks: 1
What is the pH after 22
...
Question 14
Marks: 1
What is the pH after 50 mL of NaOH are added?
Answer:
Correct
Marks for this submission: 1/1
...
9 mL of NaOH are added?
Answer:
Correct
Marks for this submission: 1/1
...
189 M phosphoric acid (H3PO4, a triprotic acid)
...
5 x 10-3, Ka2 = 6
...
8 x 10-13
...
Answer:
Correct
Marks for this submission: 1/1
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5 x 10-3
H2PO4-(aq) +H2O(l) ↔ H3O+(aq) + HPO42-(aq) Ka2 = 6
...
8 x 10-13
Determine whether sodium monohydrogen phosphate (Na2HPO4) is neutral, basic, or acidic
...
Question 18
Marks:
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Question 19
Marks: 1
Finally, indicate whether the HPO42- ion is neutral, basic, or acidic in solution
...
a
...
neutral
c
...
Question 20
Marks: 1
Determine whether potassium hydrogen tartrate (KHC4H4O6) is neutral, basic, or acidic
...
0 x 10-3 and Ka2 = 4
...
Answer:
Correct
Marks for this submission: 1/1
...
Question 22
Marks: 1
Finally, indicate whether the HC4H4O6- ion is neutral, basic, or acidic in solution
...
a
...
neutral
c
...
Finish review
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