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

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

  • 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.