1) Which of these are units of concentration? a) ml b) cm3 c) mol/l d) % e) g f) ml/s 2) Which of these are units for concentration? a) g/l b) mol l-1 c) s d) kg e) ms-1 3) Which is the most concentrated? a) 4 mol/l b) 0.5 mol/l c) 0.08 mol/l d) 0.1 mol/l e) 2 mol/l 4) Which is the lowest concentration? a) 0.5 mol/l b) 0.1 mol/l c) 0.05 mol/l d) 0.15 mol/l e) 0.01 mol/l 5) Which will have the highest concentration? a) 5 g of salt dissolved in 100 cm³ water. b) 10 g of salt dissolved in 100 cm³ water. 6) Which will have the highest concentration? a) 6 g of copper sulfate dissolved in 100 cm³ water b) 6 g of copper sulfate dissolved in 5 cm³ water 7) Which will be most dilute? a) 100 g of salt dissolved in 100 cm³ water. b) 50 g of salt dissolved in 60 cm³ water 8) Identify which solution will be most dilute a) 30 g of copper sulfate dissolved in 50 cm³ water b) 90 g of copper sulfate dissolved in 100 cm³ water

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