Drill: Calculate the % composition of: CaCO 3 & H 2 SO 4.

Drill: Calculate the %

composition of:CaCO3 & H2SO4

AP Final Review

Review Chapters 4 & 5 in the Kaplan

AP CHM Book.

AP CHM HW•Problems: 3 & 4

•From the Final Review

Drill: Draw ECs, EDDs, QNs, &

possible ox #s for:

Mg Br Mn

Continue on the Midterm

Review



Drill: Calculate the molarity, molality, & mole

fraction of a 1.05 g/mL solution containing

3.00 g of CH3COOH in 17.1 g of water.


Review



Drill: Calculate the number of

oxygen atoms in 16 g of Fe2(SO4)3


Review

AP CHM HW•Problems: 22


AP Review Drill:When XS HCl is added to 10.0 g of

impure CaCO3, 831 mL CO2 was

collected at 27oC under 150 kPa

pressure. Determine: a) rxn.

b) moles CaCO3 in sample.

c) % CaCO3 in sample.

Chemical Reactions•Predict, balance, &

write the net ionic reaction for each of

the following:

Solutions of zinc(II) sulfate and sodium

phosphate are mixed.

Solutions of silver(I)nitrate and lithium bromide are

mixed.

Solid potassiumis added to asolution of

Copper(II)nitrate.

Aqueous hydrochloric acid is added to a solution

of potassium hydroxide.

Aqueous Acetic acid is added to a solution

of potassium hydroxide.

Equimolar portions of hydrochloric acid & potassium sulfite are

combined.

Excess hydrochloric acid is added to a

solution of potassium sulfite.

Excess nitric acid is added to a solution

of sodium carbonate.

Solid sodium oxide is added to

water.

Aqueous ammonia is added to a solution of

iron(III)chloride

Samples of boron trichloride and

ammonia gas are mixed.

Carbon disulfide vapor is burned in

excess oxygen.

Solid zinc is added to aqueous silver(I) nitrate.

Solid barium carbonate is

heated.

Solid sodium bicarbonate is

heated.

A solution of tin(II)chloride is

added to an acidified solution of potassium

dichromate.

Aqueous ammonia or potassium thiocyanate is added to a solution of copper(II)chloride

Propanol is burned in excess

oxygen.

Sulfur dioxide gas is bubbled through water

Determine % composition of all

elements in Fe2(SO4)3

M combines with O making MO. X combines with K

making K3X.Determine subscripts

for MaXb:

Determine the empirical formula for

a compound containing: 60.0 % C, 8.00 % H,

& 32.0 % O.

Ore Emp % by mass # Form Cu S Fe 1 Cu2S ? ? 0 2 ? 34.6 34.9 30.5 3 ? 55.6 28.1 16.3

The following is 47 % O

HClO HClO2

HClO3HClO4

Drill: Draw LDDs for:

XeCl4 CCl4

SCl4 PCl5

SCl6 ICl3

Drill: Draw LDDs for:

SO2 HNO2

HNO3 C6H6

List & describe 4 types of

intermolecular or Van der Waals

forces:

Predict MP trend for:•Any metal column

•Any nonmetal column

•Columns of corresponding salts

Calculate the volume of NO2 produced at STP when 6.4 mg

N2H4 react with excess oxygen gas forming

NO2 & H2O.

Calculate the mass of CaSO4 produced when

11.1 g CaCl2 react with 250 mL 0.25 M

H2SO4.

In the thermite rxn, 5.1 g of Al2O3 was

produced when 16 g Fe2O3 react with xs

aluminum. Calculate % yield.

Calculate the mass of solid produced when

11.1 g CaCl2 react with 250 mL 0.50 M

Pb(NO3)2.

CxHy is burned in air producing 8.96 L CO2 at STP & 5.4 g of H2O. Calculate: EF of CxHy

CxHy is burned in air producing 4.48 L CO2 at STP & 5.4 g of H2O. b) Calculate the MF if

CxHy gas occupied 2.24 L at STP.

CxHy is burned in air producing 4.48 L CO2 at STP & 5.4 g of H2O. c) Write the balanced rxn

for the combustion reaction.

CxHy is burned in air producing 4.48 L CO2 at STP & 5.4 g of H2O. d) What was the mass

of CxHy burned?

Calculate the volume of 2.0 moles of gas

under 83.1 kPa pressure at 127oC:

Calculate the mass of 831 L of

CO2 at 167oC under 150 kPa

pressure:

Calculate the molecular mass of

5.0 g of gas in 831 mL under 250

kPa at 227oC

Calculate the molecular mass of a

40 % solution of molecular solute in water that boils at

101.024oC

30 g C3H6NF was dissolved in 50 g

C6H12O at 27oC making a 0.800 g/mL solution. Calculate X, mo, M, ,

VP, BP, & FP.

Drill:Calculate H, G, & S in the production of 831mL

ammonia at 227oC under

250.0 kPa pressureCompd NH3

Hfo -46.1

Gfo -16.5

Lab Results: Cup H2O NaOH Thermo

5.0 g 50.0 g 4.0 g 15.0 g Ti = 22.0

oC Tf = 27.0

oC

Cmpd NaOH Na+ OH-

Hf

o -425.6 -240.1 -230.0

Determine: theoretical and experimental heat changes

A B: K1 = 2.0 x 10-4

2 A 2 B: K2 = ? 3 A 3 B: K3 = ?

B A: K4 = ? 1/2 A 1/2 B: K5 = ?

When 2.00 g NaOH dissolves in a 1.0 L water in a 2.5 kg calorimeter, the temp. went

from 22.5oC to 26.5oC. Calculate: Ho

soln Cwater = 4.18 J/gK Ccal = 2.00 J/gK

Lab Results: Cal H2O KOH 1500 g 750 g 25.0 g Ti = 22.0

oC Tf = 26.0

oC

Cmpd KOH K+ OH-

Hf

o -424.7 -246.1 -230.0


Lab Results: Cal H2O KOH 1500 g 750 g 25.0 g Ti = 22.0

oC Tf = 26.0

oC

Cmpd KOH K+ OH-

Hf

o -424.7 -246.1 -230.0


Drill: Hrxn = -1500 kJ

Srxn = +300 J/K

Calculate Teq:

Experimental ResultsExp # T [A] [B] Rate

1) 27oC 0.10 0.10 2

2) 27oC 0.30 0.10 18

3) 27oC 0.10 0.20 4

4) 77oC 0.10 0.10 20

Solve Rate ExpressionA + B C + D fast

4C + A 2G fast

4D + B 2K fast

G + K Q + W slow

Q + W Prod. fast

1A + 1B 1C + 1DCalculate the equilibrium

concentrations of each species when 2.0 M A is

mixed with 3.0 M B.Kc = 0.25

1A + 1B 1C + 1DCalculate the equilibrium

concentrations of each species when 150 ml 2.0 M A is mixed with 100.0

ml 2.0 M B. Kc = 0.25

Calculate [H+],[OH-], pH, & pOH of 0.010 M HC7H5O2 (HBz)

Ka = 6.4 x 10-5

Calculate the Ka of 0.20 M Hquack

when it ionized 5.0 % in an aqueous

solution.

The pH of a 0.79 M solution of Hnut is 3.10.

Calculate its Ka

Calculate [H2CO3], [HCO3

-], [CO3-2], [H+],

[OH-], & pH of 0.44 M H2CO3 Ka1 = 4.4 x 10-7

Ka2 = 4.7 x 10-11

Calculate [H+],[OH-], pH, & pOH of 0.10 M HC7H5O2 (HBz)

in 0.20 M KBzKa = 6.4 x 10-5

Drill:Calculate the pH of 0.10 M HF:Ka = 4.0 x 10-4

Calculate [H+],[OH-], pH, & pOH of 0.10

M HFin 0.20 M KFKa = 4.0 x 10-4

Calculate [H+],[OH-], pH, & pOH of 0.20

M KFKa = 4.0 x 10-4

Calculate the solubility of MX(s)

Ksp MX = 2.5 x 10-9

Calculate the solubility of MX2

Ksp = 3.2 x 10-11

MNO3 is added to a solution of 0.10 M KX

& 0.10 M K2Y.Ksp MX = 3.6 x 10-7

Ksp M2Y = 2.5 x 10-11

Calculate the solubility of MX2

in 1.0 M M(NO3)2 Ksp = 3.6 x 10-11

Drill: Describe the lab to

determine rxn rate expression.

Describe the lab to determine the molarity of an

acid.

Describe the lab to determine % yield of heat of

rxn.

Drill: Determine all when a cell with an Al electrode in AlCl3(aq) is connected to a cell with

a Zn electrode in

ZnBr2(aq)

Determine the rxn that takes place when

electricity is passed through two Pt

electrodes in CdCl2(aq)

• Determine the voltage of a cell with a copper

electrode in 0.10 M CuNO3 & a zinc

electrode in 1.0 M

Zn(NO3)2 at 27oC

Calculate the years required to plate 216 kg onto the cathode when a 96.5 mAmp current is applied to a solution of

AgNO3

Drill: List & describe all of the

radioactive particles.

Determine Products:1) emission of Ra-226 2) emission of Ba-139

A sample diminishes from 0.500 % C-14 to

0.00300 % C-14 in _____ years

List & describe the 10 organic prefixes dealing with carbon

chain length.

Name & draw all organic functional groups containing

either oxygen and/or nitrogen.

A compound is66.5 % C, 9.44 % H, & the rest is O.

Determine its empirical formula.

Drill: Calculate the % composition of: CaCO 3 & H 2 SO 4.

Documents

g of h2o

g of water

g cacl2

g of fe2so43

g of al2o3

g of ch3cooh

g fe2o3

solution of potassium