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Which of the following statements best describes the pH of a 0.010 M solution of

Which of the following statements best describes the pH of a 0.010 M solution of

Which of the following statements best describes the pH of a 0.010 M solution of acetic acid?

A)The pH is greater than 0 but less than 2.

B)The pH is exactly 2.

C)The pH is greater than 2 but less than 7.

D)The pH is exactly 7.

E)The pH is greater than 7 but less than 12.

 

72.              The Ka for formic acid is 1.8 ? 10?4.  Which of the following statements best describes the pH of a 0.0010 M solution of acetic acid?

A)The pH is greater than 0 but less than 3.

B)The pH is exactly 3.

C)The pH is greater than 3 but less than 7.

D)The pH is exactly 7.

E)The pH is greater than 7 but less than 11.

 

73.              List the species present in order of increasing concentration in a 0.1 M solution of H2Se.

A)H2Se ? 2?D)HSe? 2? 2Se

B)H2Se 2? ?E)Se2? 2Se ?

C)Se2? ? 2Se

 

74.              List the species present in order of increasing concentration in a 0.1 M solution of H2C2O4.

A)H2C2O2O4? 2O42?D)HC2O4?  2O42? 2C2O4

B)H2C2O2O42? 2O4?E)C2O42?  2C2O2O4?

C)C2O42? 2O4? 2C2O4

 

75.              List the species present in order of increasing concentration in a 0.1 M solution of H2S.

A)H2S ? 2?D)HS? 2? 2S

B)H22? ?E)S2? 2S ?

C)S2? ? 2S

 

76.              Select the solution below that is the most acidic.

A)[H3O+] = 1.0 ? 10?MD)[H3O+] = 1.0 ? 10?M

B)[H3O+] = 1.0 ? 10?ME)[H3O+] = 1.0 ? 10?10 M

C)[H3O+] = 1.0 ? 10?M

 

77.              Select the solution below that is the most basic.

A)[H3O+] = 1.0 ? 10?MD)[H3O+] = 1.0 ? 10?M

B)[H3O+] = 1.0 ? 10?ME)[H3O+] = 1.0 ? 10?10 M

C)[H3O+] = 1.0 ? 10?M

 

78.              Select the solution below that is the most acidic.

A)[OH?] = 1.0 ? 10?MD)[OH?] = 1.0 ? 10?M

B)[OH?] = 1.0 ? 10?ME)[OH?] = 1.0 ? 10?11 M

C)[OH?] = 1.0 ? 10?M

 

79.              Select the solution below that is the most basic.

A)[OH?] = 1.0 ? 10?MD)[OH?] = 1.0 ? 10?M

B)[OH?] = 1.0 ? 10?ME)[OH?] = 1.0 ? 10?11 M

C)[OH?] = 1.0 ? 10?M

 

80.              Select the solution below that is the most acidic.

A)[OH?] = 1.0 ? 10?MD)[H3O+] = 1.0 ? 10?M

B)[OH?] = 1.0 ? 10?ME)[H3O+] = 1.0 ? 10?10 M

C)[H3O+] = 1.0 ? 10?M

abhinav behal 15-Feb-2020

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