1 In a solution, the substance that is dissolved is called _SOLUTE_________________ 2 A substance that conducts electricity when dissolved in water is called a(n) ELECTROLYTE 3 What is the name of the process by which a crystalline solid is dissolved as separate ions in solution? DISSOCIATION 4 Any molecule that is positively charged on one side and negatively charged on the other is __POLAR_________________ 5 Any substance that does NOT conduct electricity when in solution is called a(n) NONELECTROLYTE__ 6 A solution that contains the maximum amount of solute that is soluble at a given temperature is said to be
___SATURATED__________________
7 How can you dissolve a greater amount of gas in a solution? DECREASE TEMP, ADD PRESSURE 8 How can you dissolve a greater amount of solid in a solution? CRUSH INTO SMALLER PIECES STIR/AGITATE
USUALLY HEAT
9 Consult solubility rules and specify whether these ions are mostly soluble or insoluble? K+ __SOLUBLE____________ Ag+ ____ INSOLUBLE ________ Hg+ __ INSOLUBLE ________ Mg++ ____ SOLUBLE ___________ Na+ __ SOLUBLE __________ Li+ ____ SOLUBLE ___________ 10 When referring to the solubility of different substances, the phrase "like dissolves like" is often used as a guideline to select an appropriate solvent. What property does this refer to? POLARITY 11 How can you recognize or test to confirm a saturated solutions? UNDISSOLVED SOLUTE IN THE BOTTOM 12 How can you recognize or test to confirm an unsaturated solutions? NO UNDISSOLVED SOLUTE, ADD A SMALL CRYSTAL AND IT DISSOLVES 13 How can you recognize or test to confirm a supersaturated solutions? NO UNDISSOLVED SOLUTE, ADD A SMALL CRYSTAL AND IT GROWS BIGGER 14 What units are used to describe the solubility of a substance in a given solution? AMOUNT OF SOLUTE PER AMOUNT OF SOLVENT 15 What is the molarity of a solution that contains 0.400 mol HCl in 9.79 L solution? 0.0409M (USE THE FORMULA MOLARITY = MOLES / LITER) 16 What volume of 2.5M NaOH solution contains 3.25 mol of NaOH? 1.3 L (USE THE FORMULA MOLARITY = MOLES / LITER) 17 What volume of a 0.150 M saltwater solution contains 0.500 g of NaCl? 0.057 L (USE THE FORMULA MOLARITY = MOLES / LITER) 18 Which type of solution has achieved equilibrium between the rate of crystallization and rate of dissolution? SATURATED 19 A solution in which more solute is dissolved than is typically soluble at a given temperature is — SUPERSATURATED 20 To make 3.50 L of 0.600 M nitric acid, how many mL of a 1.00 M stock solution are used? 2100 mL (USE THE FORMULA M1 * V1 = M2 * V2) 21 What will happen to the ability of a solid to dissolve in a liquid if the temperature increases? USUALLY INCREASES
22 A sample of 0.055 mol Sodium hydroxide, NaOH, was dissolved in water to yield 50.0 mL of solution. What is the molarity of the solution? 1.1 M (MOLARITY = MOLES / LITER) 23 What volume of 0.15 M NaHCO3 is required to yield 0.325 mol of NaHCO3? 2.2 L (USE THE FORMULA MOLARITY = MOLES / LITER) 24 An aqueous solution is made from 0.235 mol of Na2Cr2O7. If the volume of the solution is 75.0 mL, what is the molarity of the solution? (Answer with significant digits.) 3.13 M (USE THE FORMULA M1 * V1 = M2 * V2) 25 How many mL of stock NH3 is needed to make 150.0mL of 3.00M NH3? Your stock solution is 14.8M. (Answer in significant figures with mL for unit.)30.4 mL (USE M1*V1 = M2*V2)
26 A beaker containing 110 grams of sodium nitrate, NaNO3, in 100 grams of water has a temperature of 30°C. Approximately how many grams of the salt are undissolved on the bottom of the beaker? About 15 g 27 In order to have a saturated solution, how many grams of ammonium chloride, NH4Cl, need to be dissolved in 100 grams of water at 20°C. about 38 g 28 What can you say to summarize the general features of the chart? Most compounds are more soluble as temperature increases 29 Which salt has a solubility curve which resembles the behavior of gasses in solution? Ce2(SO4)3
