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Multiple choice, please explain why you chose that answer 1) The binary acid, HC

ID: 867198 • Letter: M

Question

Multiple choice, please explain why you chose that answer

1) The binary acid, HCl, is a stronger acid than the binary acid, HF, because?

a) an H--Cl bond is weaker than an H--F bond

b) Chlorine (Cl) is less electronegative

2) A Solution containing which one of the following pairs of substances will be a buffer solution?

a) NaI, HI

b) KNO3, HNO2

c) C6H5COOH, NaC6H5COO

d) None of these

3) If a small amount of HCl is added to an acetic acid (CH3COOH)/ acetate (Ch3COO-) buffer with pH= 4.5, which of the following is true?

a) The pH of the buffer will increase

b) The [CH3COOH] will increase

Explanation / Answer

1) an H--Cl bond is weaker than an H--F bond.

2) c) C6H5COOH, NaC6H5COO

3) b) The [CH3COOH] will increase