Solutions Review

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Solutions Review

How much of the solute will dissolve and how much will remain undissolved at the bottom of the test tube?60g of NaCl in 100g of water at 60c 40g dissolved20 g undissolved

Suppose you were making a salt water solution. Sodium ions and chloride ions are separating from one another. What is this called?

DissociationWhat are the 3 different types of mixtures?SolutionsSuspensionsColloids

Describe how stirring increases the rate of dissolving of a solute.

Allows continual contact between solute & solventWhat type of mixture are colloids classified as?Heterogeneous___________ is a homogeneous mixtureSolutionsWhat is an example of a colloid?AerosolsFoamsEmulsionsGels/SolsExplain why a beaker of NaCl crystals cannot conduct an electrical current. Be specific.

Ions are not dissociated and the ions are not mobile since the are not in a solution________ is the substance that does the dissolving in a solutionSolvent_______ is a substance that dissolves in water to give a solution that conducts electric currentElectrolyteWhat are the 3 factors that can increase the solution rate?HeatingStirringGrindingDescribe how heating increases the rate of dissolving of a solute.

Increases the kinetic energy so molecules are moving faster so more collisions between the solute & solventDetermine what type of mixture a substance is by the following observation : particles are scattered by lightColloidAt 100C, 70g of NaCl is dissolved in 100g of water. Is this solution saturated or unsaturated?Saturated

What is solution equilibrium?State where the solute is dissolving at the same rate that the solute is coming out of solution (crystallizing)._____ is the quantity of solute that will dissolve in specific amount of solvent at a certain temperature. SolubilityDescribe how grinding a solute increases the rate of dissolving.

Creates more of a surface area on the solute, so more collisions between solute & solvent will occurSuppose you were making a salt water solution. Sodium ions and chloride ions are each being surrounded by water molecules. What is this called?

Solvation_____ is a stable solution in which the maximum amount of solute has been dissolvedSaturated SolutionWhat helps to prevent colloid particles from settling out of a mixture?

Brownian MotionExplain why a beaker of NaCl water can conduct an electrical current. Be specific.

Ions are dissociated and the ions are mobileDetermine what type of mixture A substance is by the following observation : particles can be separated by filtrationSuspension_____ is the visible pattern caused by the reflection of light from suspended particles in a colloid Tyndall EffectWhat is visual evidence that a solution would be saturated?Undissolved solute would be present at the bottom of the container_____ is the substance that gets dissolved in a solutionSolute____ is a solution that contains less solute than a saturated solution under existing conditionsUnsaturated____ is a mixture that is uniform in composition Homogeneous At 100C, 10g of NaCl is dissolved in 100g of water. Is this solution saturated or unsaturated?Unsaturated

What is considered the universal solvent?waterWhat are 3 factors that affect solubility?Nature of solutes/solventsTemperaturePressure

How many grams of potassium bromide can be dissolved in 100g of water at 80C?98g

Explain the rule, Like Dissolves Like. rule of thumb for predicting whether or not one substance dissolves in anotherEx: Polar solutes will dissolve in polar solvents

____ is a colloid where solids and liquids dispersed in gases (fog)AerosolsDescribe the 3 steps in the dissolving process.Solute-solute attraction is broken up; requires energySolvent-solvent attraction is broken up; requires energySolute-solvent attraction is formed; releases enerty_____ is a mixture in which the particles are so large that they settle out unless the mixture is constantly stirred or agitatedsuspension

What is an example of a suspension?Oil and waterDirt and water_____ is a mixture consisting of particles that are intermediate in size between those in solutions and those in suspensionsColloidWhat type of mixture are suspensions classified as?Heterogeneous____is the random continuous motions of colloidal particlesBrownian Motion_______ is a substance that dissolves in water to give a solution that DOES NOT conduct electric currentNonelectrolyteWhat is an example of the tyndall effect?Visibility of headbeams on a foggy nightWhich salt is least soluble at 60 C? NaCl

_____ is a solution that temporarily contains more than the saturation amount of solute than the solvent can hold (unstable)SupersaturatedWhich salt is MOST soluble at 20 C? NaClO3

What is an example of a solution?Food coloring and water____ is a colloid where gases dispersed in liquids (Ex: whipped cream)Foam_____ is the separation of ions from each other in a solutionDissociationWhat is the molarity formula? (besides M1V1 = M2V2)Molarity = Moles of SoluteLiters of SolutionExplain why a sugar solution cannot conduct an electrical current. Be specific.No charged particles are present and they are not mobile____ is a mixture that is NOT uniform in composition Heterogeneous