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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 N aCl in 100g of water at 60ºc. 40g dissolved 20 g undissolved.

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slide2

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 60ºc

  • 40g dissolved
  • 20 g undissolved
slide3
Suppose you were making a salt water solution. Sodium ions and chloride ions are separating from one another. What is this called?
  • Dissociation
describe how stirring increases the rate of dissolving of a solute
Describe how stirring increases the rate of dissolving of a solute.
  • Allows continual contact between solute & solvent
what is an example of a colloid
What is an example of a colloid?
  • Aerosols
  • Foams
  • Emulsions
  • Gels/Sols
explain why a beaker of nacl crystals cannot conduct an electrical current be specific
Explain 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 a substance that dissolves in water to give a solution that conducts electric current
_______ is a substance that dissolves in water to give a solution that conducts electric current
  • Electrolyte
describe how heating increases the rate of dissolving of a solute
Describe 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 & solvent
slide14
Determine what type of mixture a substance is by the following observation : particles are scattered by light
  • Colloid
at 100 c 70g of nacl is dissolved in 100g of water is this solution saturated or unsaturated
At 100°C, 70g of NaCl is dissolved in 100g of water. Is this solution saturated or unsaturated?
  • Saturated
what is solution equilibrium
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
_____ is the quantity of solute that will dissolve in specific amount of solvent at a certain temperature.
  • Solubility
describe how grinding a solute increases the rate of dissolving
Describe 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 occur
slide19

Suppose 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 dissolved
_____ is a stable solution in which the maximum amount of solute has been dissolved
  • Saturated Solution
explain why a beaker of nacl water can conduct an electrical current be specific
Explain why a beaker of NaClwater can conduct an electrical current. Be specific.
  • Ions are dissociated and the ions are mobile
slide23
Determine what type of mixture A substance is by the following observation : particles can be separated by filtration
  • Suspension
is the visible pattern caused by the reflection of light from suspended particles in a colloid
_____ is the visible pattern caused by the reflection of light from suspended particles in a colloid
  • Tyndall Effect
what is visual evidence that a solution would be saturated
What is visual evidence that a solution would be saturated?
  • Undissolved solute would be present at the bottom of the container
is a solution that contains less solute than a saturated solution under existing conditions
____ is a solution that contains less solute than a saturated solution under existing conditions
  • Unsaturated
at 100 c 10g of nacl is dissolved in 100g of water is this solution saturated or unsaturated
At 100°C, 10g of NaCl is dissolved in 100g of water. Is this solution saturated or unsaturated?
  • Unsaturated
what are 3 factors that affect solubility
What are 3 factors that affect solubility?
  • Nature of solutes/solvents
  • Temperature
  • Pressure
explain the rule like dissolves like
Explain the rule, “Like Dissolves Like”.
  • rule of thumb for predicting whether or not one substance dissolves in another
  • Ex: Polar solutes will dissolve in polar solvents
describe the 3 steps in the dissolving process
Describe the 3 steps in the dissolving process.
  • Solute-solute attraction is broken up; requires energy
  • Solvent-solvent attraction is broken up; requires energy
  • Solute-solvent attraction is formed; releases enerty
slide36
_____ is a mixture in which the particles are so large that they settle out unless the mixture is constantly stirred or agitated
  • suspension
what is an example of a suspension
What is an example of a suspension?
  • Oil and water
  • Dirt and water
slide38
_____ is a mixture consisting of particles that are intermediate in size between those in solutions and those in suspensions
  • Colloid
is a substance that dissolves in water to give a solution that does not conduct electric current
_______ is a substance that dissolves in water to give a solution that DOES NOT conduct electric current
  • Nonelectrolyte
what is an example of the tyndall effect
What is an example of the tyndall effect?
  • Visibility of headbeams on a foggy night
slide44
_____ is a solution that temporarily contains more than the saturation amount of solute than the solvent can hold (unstable)
  • Supersaturated
what is an example of a solution
What is an example of a solution?
  • Food coloring and water
what is the molarity formula besides m1v1 m2v2
What is the molarity formula? (besides M1V1 = M2V2)
  • Molarity = Moles of Solute

Liters of Solution

explain why a sugar solution cannot conduct an electrical current be specific
Explain why a sugar solution cannot conduct an electrical current. Be specific.
  • No charged particles are present and they are not mobile