Question

Complete the following table: H3O+ OH− pH Acidic, Basic, or Neutral? 10.0 Neutral 4×10−5M 1 ×10−2M...

Complete the following table:

H3O+ OH− pH Acidic, Basic, or Neutral?
10.0
Neutral
4×10−5M
1 ×10−2M
12.2

Part A

If the pH of the solution is 10.0, what is the [H3O+]?

Express your answer to one significant figure.

[H3O+] =   M  

Part B

If the pH of the solution is 10.0, what is the [OH−]?

Express your answer to one significant figure.

[OH−] =   M  

Part C

If the solution is neutral, what is the [H3O+]?

Express your answer to one significant figure.
[H3O+] =   M  

Part D

If the solution is neutral, what is the [OH−]?

Express your answer to one significant figure.
[OH−] =   M  

Part E

If the solution is neutral what is the value of pH?

Express your answer using one decimal place.
pH =

Part F

If the [OH−] in a solution is 4×10−5M, what is the [H3O+]?

Express your answer to one significant figure.
[H3O+] =   M  

Part G

If the [OH−] in a solution is 4×10−5M, what is the pH of the solution?

Express your answer using one decimal place.
pH =

Part H

If the [H3O+] in a solution is 1×10−2M, what is the [OH−]?

Express your answer to one significant figure.
[OH−] =   M  

Part I

If the [H3O+] in a solution is 1×10−2M, what is the pH?

Express your answer using one decimal place.
pH =

Part J

If the pH of the solution is 12.2, what is the [H3O+]?

Express your answer to one significant figure.
[H3O+] =   M

Part K

If the pH of the solution is 12.2, what is the [OH−]?

Express your answer to one significant figure.
[OH−] =   M  
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Homework Answers

Answer #1

Part A

If the pH of the solution is 10.0, what is the [H3O+]?

[H3O+] = 10^-pH = 10^-10   M  

Part B

If the pH of the solution is 10.0, what is the [OH−]?

Express your answer to one significant figure.

[OH−] = 10^-pOH = 10^-(14-10) = 0.0001 M  

Part C

If the solution is neutral, what is the [H3O+]?

Express your answer to one significant figure.
[H3O+] = 10^-7 by definition   M

Part D

If the solution is neutral, what is the [OH−]?

Express your answer to one significant figure.
[OH−] = 10^-7 by definiton M  

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