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Which of the following is the strongest acid

Which of the following is the strongest acid

Which of the following is the strongest acid?

A)HNO2Ka = 5.6 ? 10?4D)CH3CO2H, Ka = 1.8 ? 10?5

B)HCN, Ka = 6.2 ? 10?10E)HCO2H, Ka = 1.8 ? 10?4

C)NH4+Ka = 5.6 ? 10?10

 

62.              Which of the following is the strongest acid?

A)HOCl, Ka = 4.0 ? 10?8D)CH3CO2H, Ka = 1.8 ? 10?5

B)HCN, Ka = 6.2 ? 10?10E)HCO2H, Ka = 1.8 ? 10?4

C)NH4+Ka = 5.6 ? 10?10

 

63.              Given 0.10 M solutions of the following acids, which contains the highest concentration of H3O+?

A)HF, Ka = 6.3 ? 10?4D)CH3CO2H, Ka = 1.8 ? 10?5

B)HCN, Ka = 6.2 ? 10?10E)HCO2H, Ka = 1.8 ? 10?4

C)HOCl, Ka = 4.0 ? 10?8

 

64.              Given 0.10 M solutions of the following acids, which contains the highest concentration of H3O+?

A)HNO2Ka = 5.6 ? 10?4D)CH3CO2H, Ka = 1.8 ? 10?5

B)HCN, Ka = 6.2 ? 10?10E)HCO2H, Ka = 1.8 ? 10?4

C)NH4+Ka = 5.6 ? 10?10

 

65.              Given 0.10 M solutions of the following acids, which contains the lowest concentration of H3O+?

A)HF, Ka = 6.3 ? 10?4D)CH3CO2H, Ka = 1.8 ? 10?5

B)HCN, Ka = 6.2 ? 10?10E)HCO2H, Ka = 1.8 ? 10?4

C)HOCl, Ka = 4.0 ? 10?8

 

66.              Which of the following ionizes to the greatest extent?

A)HF, Ka = 6.3 ? 10?4D)CH3CO2H, Ka = 1.8 ? 10?5

B)HCN, Ka = 6.2 ? 10?10E)HCO2H, Ka = 1.8 ? 10?4

C)HOCl, Ka = 4.0 ? 10?8

 

67.              Which of the following ionizes to the greatest extent?

A)HNO2Ka = 5.6 ? 10?4D)CH3CO2H, Ka = 1.8 ? 10?5

B)HCN, Ka = 6.2 ? 10?10E)HCO2H, Ka = 1.8 ? 10?4

C)NH4+Ka = 5.6 ? 10?10

 

68.              Rank the following 0.100 M solutions in order of increasing H3O+ concentration:

HOCl, Ka = 4.0 ? 10?8; HCN, Ka = 6.2 ? 10?10; NH4+Ka = 5.6 ? 10?10

A)HOCl 4+D)HCN 4+

B)HOCl 4E)NH4+

C)HCN 4+

 

69.              Rank the following 0.100 M solutions in order of increasing H3O+ concentration:

HF, Ka = 6.3 ? 10?4; HCN, Ka = 6.2 ? 10?10; HOCl, Ka = 4.0 ? 10?8

A)HF D)HOCl

B)HF E)HCN

C)HOCl

 

70.              Rank the following 0.100 solutions in order of increasing H3O+ concentration:

HCN, Ka = 6.2 ? 10?10; NH4+Ka = 5.6 ? 10?10; CH3CO2H, Ka = 1.8 ? 10?5

A)HCN 43CO2HD)CH3CO24+

B)NH43CO2HE)CH3CO24+

C)HCN 3CO24+

abhinav behal 15-Feb-2020

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