Unit 3 and 4 Exam Review Grade 11 University Chemistry

Multiple Choice 1)A 10g sample of sugar is dissolved in 150g of water. The sugar and water are referred to, respectively, as the: a)solvent and solute b)solution and solvent c)solute and solvent d)solution and solute

Multiple Choice 2) Which of the following would be insoluble in water? a) lead (II) nitrate b) sodium hydroxide c) iron (II) bromide d) mercury (II) chloride

Multiple Choice 3)A solution that contains more solute than can normally be dissolved in the solvent at a particular temperature is called a) unsaturated b) saturated c) supersaturated d) polyunsaturated.

Multiple Choice 4) The concentration of a solution may be defined as: a) moles of solute per moles of solvent b) moles of solute per litre of solution c) moles of solute per litre of solvent d) moles of solute per mole of solution

Multiple Choice 5)If a relatively small amount of solute is dissolved in a relatively large amount of solvent, the solution is said to be a) dilute b) an electrolyte c) supersaturated d) concentrated

Multiple Choice 6) The ions formed when magnesium bromide dissolves in water are a) Mg 2+, 2Br - b) Mg 2+, Br 2- c) Mg +, Br 2- d) Mg +, Br -

Multiple Choice 7)The spectator ions in this reaction are: Pb(NO 3 ) 2 (aq) + 2KI(aq)  PbI 2 (s) + 2KNO 3 (aq) a) Pb 2+ (aq), NO 3  (aq) and I  (aq) b) K + (aq) c) Pb 2+ (aq) and I  (aq) d) NO 3  (aq) and K + (aq)

Multiple Choice 8)The pH for a solution that contains 2.35 x mol/L of H 3 O + is a) 3.63 b) 3.71 c) 4.37 d) 4.00

Multiple Choice 9)A solution which contains an equal number of hydronium ions and hydroxide ions is a) an acidic solution b) a basic solution c) a neutral solution d) a solid solution

Multiple Choice 10)The statement “The volume of a fixed mass of gas is inversely proportional to the pressure, provided the temperature remains constant.” is referred to as: a) Gay-Lussac’s Law b) Boyle’s Law c) Charles’ Law d) Dalton’s Law

Multiple Choice 11) The expression “absolute zero” refers to a) the temperature at which water freezes b) –273 K c) 0 o C d) 0 K

Multiple Choice 12)Hydrogen gas and fluorine gas are in identical containers at STP. Which of the following is true? a) The number of moles are equal. b) There will be more moles of hydrogen because it is a smaller molecule. c) There will be more moles of fluorine because it has a larger molar mass. d) There is not enough information given to answer the question.

Multiple Choice 13)At 20 o C, a moving piston reduces the volume of a cylinder by a half. The pressure inside the cylinder a) will decrease by one half b) will double c) will increase by one half d) will remain the same

Multiple Choice 14) A balloon is at room temperature. If the temperature is increased, and the pressure is decreased, which of the following will happen? a) Nothing. b) The volume will increase. c) The volume will decrease. d) The volume will increase, then decrease.

Multiple Choice 15)If a sealed one litre jar of gas is cooled, the molecules a) move farther apart b) collide more often with the walls of the jar c) increase their vibrational motion d) move more slowly

Multiple Choice 16)Molecular motion that occurs when the molecule moves from one place to another is called a) translational motion b) rotational motion c) vibrational motion d) transversal motion