# BELLRINGER Compare and explain in complete sentences what is a saturated solution

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BELLRINGERCompare and explain in complete

sentences what is

a saturated solution.

Previous homeworkFinish and submit 4 BRs for the previous week.

SOLUTIONSIIIWater and SolutionsConcentration and Solubility

Suppose you dissolve 10.0 g of sugar in 90.0 g of water. What is the mass percent concentration of sugar in the solution?Asked:The mass percent concentration

Given:10 g of solute (sugar) and 90 g of solvent (water)

Relationships:

Suppose you dissolve 10.0 g of sugar in 90.0 g of water. What is the mass percent concentration of sugar in the solution?Asked:The mass percent concentration

Given:10 g of solute (sugar) and 90 g of solvent (water)

Relationships:

Solve:

ConcentrationThere are several ways to express concentration

ConcentrationCalculate the molarity of a salt solution made by adding 6.0 g of NaCl to 100 mL of distilled water.

Calculate the molarity of a salt solution made by adding 6.0 g of NaCl to 100 mL of distilled water.ConcentrationAsked:Molarity of solution

Given:Volume of solution = 100.0 mL, mass of solute (NaCl) = 6.0 g

Relationships:

Calculate the molarity of a salt solution made by adding 6.0 g of NaCl to 100 mL of distilled water.ConcentrationAsked:Molarity of solution

Given:Volume of solution = 100.0 mL, mass of solute (NaCl) = 6.0 g

Relationships:

Solve:

Calculate the molarity of a salt solution made by adding 6.0 g of NaCl to 100 mL of distilled water.ConcentrationAsked:Molarity of solution

Given:Volume of solution = 100.0 mL, mass of solute (NaCl) = 6.0 g

Relationships:

Solve:

Answer:1.03 M solution of NaCl

sugar100 mLH2O10 gWhat happens when you add 10 g of sugar to 100 mL of water?Conc. (%) = 10 g/110 gSolubility

100 mLH2OWhat happens when you add 10 g of sugar to 100 mL of water?Conc. (%) = 10 g/110 gWater molecules dissolve sugar moleculessugar10 gSolubility

What happens when you add 10 g of sugar to 100 mL of water?But when two sugar molecules find each other, they will become undissolved (solid) again

Solubility

What happens when you add 10 g of sugar to 100 mL of water?But when two sugar molecules find each other, they will become undissolved (solid) again

then, they become redissolved in water again.

Solubility

What happens when you add 10 g of sugar to 100 mL of water?

This is an aqueous equilibrium!EquilibriumSolubility

SolubilitylowhighConcentrationEquilibriumdissolvingundissolving10 g sugar100 mLH2OConc. (%) = 10 g/110 g20oC

SolubilitylowhighConcentrationEquilibrium

saturation: situation that occurs when the amount of dissolved solute in a solution gets high enough that the rate of undissolving matches the rate of dissolving. Equilibrium

saturation: situation that occurs when the amount of dissolved solute in a solution gets high enough that the rate of undissolving matches the rate of dissolving. 204 g sugar100 mLH2OConc. = 204 g/100 mL20oCSolubility

SolubilitylowhighConcentrationEquilibrium250 g sugar100 mLH2OConc. = 250 g/100 mL20oCUndissolved sugar

210 gsugar100 mLH2O20oCUndissolved sugarTemperature and solubility210 gsugar100 mLH2O30oCAll the sugar is dissolved

Temperature has an effect on solubilityTemperature and solubility210 gsugar100 mLH2O20oCUndissolved sugar210 gsugar100 mLH2O30oCAll the sugar is dissolved

ACTIVITYREAD THE TEXTBOOK FROM PAGE 239.

WORK PROBLEMS FROM PAGES 244 and 245.

HomeworkFINISH YOUR ACTIVITY ASSIGNMENT AND SUBMIT IT

TOMORROW.