Solutions Review

Solutes + Solvents = Solutions Watch the video and answer the questions below. Complete the passage below by filling in the missing words. A solution is a homogenous mixture in which the soluteis dissolved in a solvent. Wateris the universal solvent. Solutions have unique properties. Solutions with ionsin them will conduct electricity. A salt dissolves in water because salt is soluble. Two liquids like water and oil that do not dissolve, so they are insoluble. Solute The substances that gets dissolved. Solvent The substance that a solute dissolves into. Soluble Property of a solute that will dissolve in a solvent. Insoluble Property of a solute that will not dissolve in a solvent. Explain why water is a good solvent. What makes water a good solvent? Water is nonpolar. Water can dissolve polar and nonpolar substances. Water has polar ends with a partial charge that dissolves many substances. Water doesn't dissolve many items. What Happens When Things Dissolve Watch the video and answer the questions below. What happens to ionic compounds when they dissolve? They break apart into individual ions. They get surrounded by water molecules. The molecules stay together and go through solvation. They are insoluble. Which compound stay together when they are dissolved? Ionic Covalent Polar Solubility is the ability of the... solvent to dissolve the solute. solute to dissolve the solution solute to dissolve the solvent. solvent to dissolve the solution. What do ionic bonds dissociate into when in a liquid? covalent bonds electrolytes water molecules Please use the solubility graph to answer the questions below. Based on the solubility graph, which solution is most soluble at 40 degrees? KNO3 NH3 NaNO3 KCl Fill in the blanks below. A solubility graph shows the maximumamount of solute dissolved at a certain temperature. It shows that solubility of a solute increasesas the temperature increases. The graph also shows that the solubility decreasesfor a gasin a solution as temperature increases. A solution is saturated when the solute amount is on the line in the graph. The amount of solute is below the line, then it is unsaturated. Supersaturated is above the line. Which solute is a gas according to the graph? KNO3 NH3 NH4Cl How much NH4Cl solute precipitates out of a solution when it is cooled from 90 degrees to 70 degrees? 25 15 10 20 How many grams would it take to make 3.5L of a 2M solution of KNO3? 707.77 70.01 770.10 How many Liters of a 0.75M solution of CaCO3 can 260 grams of CaCO3? 2.6 3.45 26.9 34.5