Final workshop review

Modules 3-5

100

Banana oil has a compound C7H14O2, I put 2 grams of banana oil in my oatmeal, how many moles of oil is that? 

0.015 moles

200

Calculate the number of atoms of sulfur in 30 grams of sulfuric acid. 

1.84*10^23 atoms

300

Balance the following: 

Na2CO3+HCl-----> NaCl +H2O+ CO2

1,2,2,1,1

400

A precipitte of barium sulfate results when soutions of sodium sulfate and barium nitrate are mixed. You have a mass of 126.6 grams of sodium sulfate dissolve in water that reacts with 133.9 grams of barium nitrate in aqueous solution. Which is the limiting reagent? 

Ba(NO3)2

500

Suppose you have 455 grams of glucose dissolved in 750 mL of water. What is the molarity of this solution if glucose has the formula C6H12O2

3.37M

Modules 6-7

100

Name all strong acids 

HCl, H2SO4, HI, HNO3, HBr, HClO3, HClO4

200

Which of the following compounds is INSOLUBLE  

AgS

NaOH 

H2SO4

Ca(NO3)2

AgS

300

What will be the precipitate in the following reaction? 

AgNO3(aq) + NaCl (aq)----> 

AgCl

400

In the following reaction, which element is being oxidized and which is being reduced?

Hg⁺²+Fe---> Hg + Fe⁺³

Hg is reduced, Fe is being oxidized 

500

Calculate the volume of 5.9*10²³ molecules of propane gas trapped in a container at a pressure of 253.3 kPa and a temperature of 269F

13.07L

Modules 8-9

100

Calculate the work done in joules of a gas in a piston under 3.4 atm with an initial volume of 10.53L and a final volume of 5.8. 

-1629.5 joules

200

Determine the final volume of a gas in a balloon if 596kJ of energy was added by doing work on 4.5L gas at a constant pressure of 3.6 atm 

-1629 L

300

Calculate the enthalpy of formation of propane gas, given the following information: 

C3H8(g)+O2----> CO2(g) + H2O(l)

Hfrxn= -2219 kJ/mol

CO2 Hf= -393.5 kJ/mol

H2O(l) Hf=-285.8 kJ/mol

-104.7 kJ/mol

400

Calculate the enthalpy of formation of sulfur dioxide in the following reaction: 

S(s) + O2(g)---> SO2(g)

S(s) +3/2O2(g)---> SO3(g)

2SO2(g)+O2(g)---->2SO3(g) 

-296.1 kJ/mol 

500

A 214g block of iron that has an initial temperature of 76C and another block of iron of mass 354g that has an initial temperature of 60C are bought into contact with one another. Assuming no heat is lost to the surroundings what will be the temperature when the two blocks of iron metal reach thermal equilibrium? the specific heat capacity of iron is 0.499J/gC

Tf= 66.03C

Module 10-11

100

What is the frequency of a wave that has a wavlenght of 69 nanometers? 

4.35*10¹⁵

200

Calculate the energy of a wave with a wavlenght of 2.30*10¹⁰ nm

8.65*10^-27 J

300

How many electrons can fit in the d subshell? 

10

400

The full electron configuration of cadmium +2 ion 

1s²2s²2p⁶3s²3p⁶4s²3d¹⁰4p⁶5s²3d⁸​​​​

500

Find all the quantum numbers for the Chlorine ion 

3,1,1,-1/2

Modules 13-14

100

What is the formal charge of the carbon atom in carbon dioxide? 

0

200

What is the formal charge of the nitrogen atom in ammonium? 

+1

300

What is the molecular geometry and hyridization of the central atom in Beryllium Dichloride? 

Linear and sp

400

Find the molecular geometry, bond angle and hybridization of hydrogen sulfide. Is it polar? 

bent, 109.5, sp³ and yes 

500

Which are the longest bonds in the SO₃^-2 atom?

The single bonded Oxygen atoms