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Chemistry > Chapter 11 > Flashcards

Chapter 11 Flashcards

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1
Q

What does solubility refer to?

A

The maximum amount of that substance that can be dissolved in a given quantity of solvent at a certain temperature.

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2
Q

What is a saturated solution?

A

A solution which no more solute can be dissolved at that temperature.

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3
Q

What is one way of measuring solubility?

A

To determine the max mass of solute that can be dissolved in 100g of solvent at a particular temperature.

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4
Q

What does the solubility curve represent?

A

The relationship between solubility and temperature.

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5
Q

What does each point on the solubility curve represent?

A

A saturated solution.

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6
Q

What does any point below the solubility curve represent?

A

An unsaturated solution.

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7
Q

What is an unsaturated solution?

A

A solution that contains less solute than is needed to make a solution saturated at that temperature.

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8
Q

What is crystallisation?

A

When a sugar that will no longer stay dissolved comes out of solution as crystals.

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9
Q

What is supersaturation?

A

Contains more dissolved solute than in a saturate solution. Any point above the solubility curve.

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10
Q

What does solubility of a particular gas in a liquid rely on?

A

Temperature of the liquid and pressure of the gas.

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11
Q

As the temperature increases what happens to the solubility of the gas?

A

The solubility of the gas decreases. (less soluble)

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12
Q

With increasing pressure what happens to the solubility of the gas?

A

It increases.

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13
Q

What does the concentration of a solution describe?

A

The relative amounts of solute and solvent present.

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14
Q

What is a concentrated solution?

A

A solution in which the ration of solute to solvent is high.

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15
Q

What is a dilute solution?

A

A solution which the ration of solute to solvent is low.

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16
Q

What are the two commonly used units for concentration?

A
  • Mass of solute per litre of solution

- Amount, in mol, of solute per litre of solution

17
Q

What is the rule for mol in relation to concentration and volume?

A

n(mol) = c(molL-1) x v(L)

18
Q

What is the measure of concentration known as?

A

Molarity or molar concentration.

19
Q

What is the process of dilution?

A

The process of adding more solvent to a solution.

20
Q

What happens to the particles when a solution is diluted?

A

They become more widely spread.

21
Q

What doesnt change during dilution?

A

The amount of solute.

22
Q

What is the dilution formula?

A

C1V1 = C2V2

23
Q

What are two formulas for concentration?

A 
Concentration = Volume of solute(ml)/volume of solution(ml) x 100%
Concentration = Mass of solute(ug)/mass of solution(g)

Chemistry (7 decks)

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