1.) C6H12O6 (aq) is a (an) ?

A. Ion in solution

B. Dilute solution

C. Ion in a crystal

D. Dissolved Molecule

2.) 2.60 moles of LiCl is dissolved in 230. mL of water. What is the resulting molarity? (Hint: Change unit mL to L before you divide.)

A. 2.6 M

B. 11.3 M

C. 2.30 M

D. 11 M

1) D. Dissolved Molecule

2) C. 11.30 M

Explanation:

Q1:

Glucose (C₆H₁₂O₆) is a non-polar molecule. When it is dissolved in water, it will be a dissolved molecule. It can not be ionized in water. So, the right choice is: D. Dissolved molecule.

Q2:

The molarity is the no. of moles of dissolved solute in a 1.0 L of the solution.

M = (n) solute (1000/V (mL) of the solution)

n of LiCl = 2.60 mol, V = 230.0 mL.

∴ M = (n) solute (1000/V (mL) of the solution) = (2.60 mol) (1000) / (230.0 mL) = 11.30 M.