Question 3d

Determine the single best answer for each of the following multiple choice questions.

Question 2d

Question 2a

What is the van’t Hoff factor (i) for Al₂(SO₄)₃ assuming complete dissociation? A.3B. 4C. 5D. 6

Please access the exam below and enter your solutions/responses in the answer fields that correspond to each question. Mock exam (PDF)

2.What is the molality of a solution containing 25.0 g of glucose (180.16 g/mol) dissolved in 250.0 g of water? A.0.278 mB. 0.556 mC. 0.139 mD. 1.11 m ​moles = mass (g) ÷ molar mass (g/mol) m = moles of solute ÷ kilograms of solvent

A solution has a boiling point elevation of 0.768 °C. Kb water = 0.512 °C/m, i = 1.What is the molality? A.0.50 mB. 1.00 mC. 1.50 mD. 2.00 m ΔTb​=i⋅Kb​⋅m ​ ​

20. If k = 0.500 M⁻¹s⁻¹, ₀ = 0.200 M, what is after 5.0 s? A.0.133 MB. 0.067 MC. 0.050 MD. 0.080 M

14.If k = 0.120 s⁻¹, ₀ = 0.800 M, what is after 8.00 s? A.0.31 MB. 0.45 MC. 0.10 MD. 0.60 M