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Final Jeopardy

$100 Question

What is Avogadro's #

$100 Answer

6.02 x 10 23

$200 Question

Calculate the molar mass of:

Fe2O3

Round to 2 decimal places

$200 Answer

159.7 g/mole

$300 Question

Calculate mass of 2.5 moles of Fe(NO3)2

$300 Answer

179.87 g/mole

$400 Question

Calculate the percent of water in:

CoCl2 6 H2O

Round to 2 decimal places

$400 Answer

237.93 g/mole = Molar mass

Water =45.45%

$500 Question

How many molecules are in2 grams of ammonia?

$500 Answer

7.22 x 10 22

Or7.07 x 10 22

$100 Question

Balance and write 3 mole ratios

__ H2O __ H2 + __ O2

$100 Answer

2 H2O 2 H2 + 1 O2

$200 Question

The ratio of Fe to FeThe ratio of Fe to Fe22OO33 in the in the reaction below isreaction below is

__Fe__Fe22OO33 + __ Al + __ Al __ Fe +__ Al __ Fe +__ Al22OO33

$200 Answer

2 Fe / 1 Fe2O3

$300 QuestionWhich of the following is true about this reaction:

__ H2 + __ AlCl3 __ Al + __ HCl

A)2 molecules of Hydrogen reactB)6 moles of Hydrochloric acid can be producedC)2 liters of aluminum chloride react

$300 Answer

3 H2 + 2 AlCl3 2 Al + 6 HCl

B) 6 moles of Hydrochloric acid can be produces

$400 Question

__ ZnS + __ O2 __ ZnO + __ SO2

a)Balance the equationb)How many moles of Zinc Oxide can be produced from 7.25 moles ofOxygen?

$400 Answer

2 ZnS + 3 O2 2 ZnO + 2 SO2

5 moles of ZnO

$500 Question

__ C6H6 + __ O2 __ CO2 + ___ H2O

A)Balance the equationsB)If I have 2.1 Liters of oxygen, how many

Liters of Carbon dioxide can be made?

$500 Answer

2 C6H6 + 15 O2 12 CO2 + 6 H2O

1.57 Liters - 1.68 Liters

$100 Question

List 2 stoichiometric calculationswhere you DO NOT need

the molar mass

$100 Answer

Mole-Particle, Particle-MoleVolume-Particle, Particle-volume

$200 Question

:4 Fe + 3 O2 2 Fe2O3

How many liters of Oxygen are neededto produce 2 moles of

Iron (III) Oxide?

$200 Answer

67.2 Liters

$300 Question

When an equation is used to calculatethe amount of product that will form

during a reaction, then the valueobtained is called the _______.

$300 Answer

Theoretical yeild

$400 QuestionA student reacts Fluorine with

calcium chloride to produce18.72 grams of calcium fluoride:

CaCl2 + F2 CaF2 + Cl2

If stoichiometric calculations prove20 g should have been produced,

What is the students percent yield?

$400 Answer

93.6 %

$500 Question

__C2H4 + __O2 __CO2 + __H2O

A)Balance the equationB)How many grams of C2H4 are

needed to produce 250 g of water?

$500 Answer

194.6 g

$100 Question

What is the equation forConcentration?

$100 Answer

M = mole / Liters

$200 Question

Calculate the molarity of a solutionwith 7 moles of solvent in 569 mL

of solution

$200 Answer

12.3 M

$300 Question

List the 3 factors thatusually make a substancedissolve faster in a solvent

$300 Answer

Agitation (stirring)Particle sizeTemperature

$400 Question

What is the molarityof a solution containing

75 g of NaCl in 100 mL of

water?

$400 Answer

12.8 M

$500 Question

3 L of 6 M HCl is diluted until the concentration is 0.1 M. What if the new

volume of the dilute solution?

$500 Answer

180 L

$100 Question

Acid or base: LiOH

$100 Answer

Base

$200 Question

What is the [H+] of a neutral solution?

$200 Answer

1 x 10 -7

$300 Question

Predict the products of the following neutralization reaction:

H2SO4 + KOH

$300 Answer

H2SO4 + KOH K2SO4 + H2O

(not balaced)

$400 Question

Calculate the pH of a substance when [H+] = 3.2 x 10 -9

$400 Answer

8.5

$500 Question

A solution has a [H+] of2.5 x10 -5. What is the pOH?

$500 Answer

9.4

Final Jeopardy

Write the balanced neutralization reaction between Hydrochloric acid

and Lead (II) hydroxide

Final Jeopardy Answer

HCl + Pb(OH)2 PbCl2 + H2O

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