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1(A) Sucrose, C 12 H 22 O 11 , is a nonelectrolyte; acetic acid, HC 2 H 3 O 2 ,

ID: 916688 • Letter: 1

Question

1(A) Sucrose, C12H22O11, is a nonelectrolyte; acetic acid, HC2H3O2, is a weak electrolyte; and ammonium chloride, NH4Cl, is a strong electrolyte. What are the solute particles present in aqueous solutions of each compound? (Select all that apply.)

Sucrose:

OH -

O2-

C12H20O112-

C12H22O11H+

C12H22O11

H+

Acetic acid:

HC2H3O2+

HC2H3O2

C2H3O2-

H+

O2-

OH -

Ammonium chloride:

NHOH+

Cl-

NH4Cl

NH4+

NH2

HCl

1 (B) If 0.1 mol of each compound is dissolved in solution, which one contains about 0.2 mol of solute particles, which contains 0.1 mol of solute particles, and which contains somewhere between 0.1 and 0.2 mol of solute particles?

(a) 0.2 mol solute particles (sucrose, acetic acid, or ammonium chloride?)

Sucrose:

OH -

O2-

C12H20O112-

C12H22O11H+

C12H22O11

H+

Acetic acid:

HC2H3O2+

HC2H3O2

C2H3O2-

H+

O2-

OH -

Ammonium chloride:

NHOH+

Cl-

NH4Cl

NH4+

NH2

HCl

Explanation / Answer

1) A

sucrose is added

solute is C12H22O11

Acetic acid:

C2H3O2-

H+

OH -

Ammonium chloride:

Cl-

NH4+

.........................................................................................................................................................

1) B

NH4Cl will contain 0.2 moles solute particles

Sucrose will contain 0.1 mole solute particles

Acetic acid will contain between 0.1 and 0.2 mol solute particles