Ch 11 & 12 DefinitionsSolubilityRandomCalculations $100 $200 $300 $400 $500.

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Transcript of Ch 11 & 12 DefinitionsSolubilityRandomCalculations $100 $200 $300 $400 $500.

Page 1: Ch 11 & 12 DefinitionsSolubilityRandomCalculations $100 $200 $300 $400 $500.
Page 2: Ch 11 & 12 DefinitionsSolubilityRandomCalculations $100 $200 $300 $400 $500.

Ch 11 & 12

Definitions Solubility Random Calculations

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Page 3: Ch 11 & 12 DefinitionsSolubilityRandomCalculations $100 $200 $300 $400 $500.

Final Question• Make your bid now

• What is the molecular formula with a molar mass of 290 g/mol that is composed of magnesium (16.2 grams) and oxygen (16 grams)

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• How many moles are in 100 grams of water?a) 0.18b) 5.56c) 18d) 1800e) 6.02 x 1025

f) 1.66 x 10-22

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• Which identifies these compounds correctly?

a) hydrate, anhydrous, empirical, molecular

b) hydrate, anhydrous, molecular, empirical

c) molecular, empirical, anhydrous, hydrate

d) molecular, empirical, hydrate, anhydrous

e) empirical, molecular, anhydrous, hydrate

f) empirical, molecular, hydrate, anhydrous

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Mg6O12

MgO2

MgSO4 ·7 H2O

MgSO4

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• According to calculations 74 grams of product should form. However, during the experiment, 76 grams of product formed. What is the percent yield?

a) 2b) 49.3c) 50.7d) 97.4e) 102.7f) 150

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• What is the molecular formula for a compound with a molar mass of 86 grams/mole and an empirical formula of C3H7?

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• Fill in the conversion flow chart below

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Definitions$100

• Aqueous definition isa) water is the soluteb) water is the solventc) formation of a solidd) contains the maximum amount of solutee) the two liquids are not solublef) the two liquids are soluble

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• Match the definition to the termsupersaturated, unsaturated, saturated

1) Contains maximum solute2) Contains less than maximum solute3) Contains more than maximum solutea) 1, 2, 3b) 1, 3, 2c) 2, 1, 3d) 2, 3, 1e) 3, 1, 2f) 3, 2, 1

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• This is the unit for molar massa) grams / moleb) mole / gramsc) molesd) gramse) grams / Literf) percent

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• The study of relationships between reactants and products is known as

a) solubilityb) limiting reactantc) precipitated) aqueouse) solvationf) stoichiometry

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• The coefficients in a balanced chemical equation represent

a) particles of each atomb) moles of each compoundc) grams of each compoundd) the solubility of each compounde) the percent yield of each compoundf) nothing, they are only used to balance the

equation

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Solubility$100

• When a solute is added to a solvent, the vapor pressure will….

a) increaseb) decreasec) stay the samed) not enough information

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Solubility $200• At what temperature

will 10 grams of NH3 form a saturated solution?

a) 50°C

b) 60°C

c) 70°C

d) 80°C

e) 90°C

f) 100°C• Game board

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Solubility $300

• Using the solubility curve, what type of solution is formed when 60 grams of KCl is dissolved in 100 grams of water at 70°C?

a) saturated

b) supersaturated

c) unsaturated

d) not enough information

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Solubility $400

• Give an example of each– Solute– Solution– Solvent

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• Name three ways to increase the solubility of a solute

• Shake, break, bake

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• The term solvation meansa) process of dissolvingb) two liquids are not solublec) two liquids are solubled) a solid that is formed during a reactione) solution has less than maximum solutef) solution has more than maximum solute

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• Which has particles that settle?

a) colloid

b) suspension

c) solution

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• A polar solvent will dissolve…a) non-polar soluteb) non-polar solventc) polar soluted) polar solvente) any of the abovef) none of the above

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• Water has what type of bond?

a) ionic

b) polar covalent

c) non-polar covalent

d) metallic

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• How many moles of oxygen are in 5 moles of aluminum sulfate, Al2(SO4)3?

a) 3

b) 4

c) 7

d) 12

e) 35

f) 60

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Calculations$100

• If a gas has a solubility of 10 g/L at 5 atmospheres of pressure, what is the pressure when it has a solubility of 14 g/L?

a) 3.57

b) 4.8

c) 7

d) 28

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How many grams of NaCl are in 2 Liters of a 5 Molar solution?

a) 0.585b) 5.85c) 58.5 d) 585e) 10f) 2.5

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• What is the solution concentration made from 58.5 grams of NaCl in 500 grams of water?

a) 0.117 %b) 11.7 %c) 0.105 %d) 10.50 %e) 0.002 %f) 0.2 %

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• Convert 3.80 x 1025 particles of magnesium to moles

a) 6.31 x 1047

b) 63.12

c) 1.57 x 1024

d) 2.29 x 1049

e) 0.0158

f) 1534• Game board

Calculations $400

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4 Al + 3 O2 2 Al2O3

• If 2 moles of aluminum and 3 moles of oxygen reacted, how much product is formed AND what is the limiting reactant?

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