Basically Moles
Moles and Mass
Formulating Formulas
It's Just a Phase
An Ideal Equation
Identify That Thing
Potpourri
100
How many atoms are in a mole?
6.02 x 1023
100
There are more atoms in 12 grams of carbon than in 12 grams of copper. True or False?
true
100
What is the EF from the MF?
C6H9
C2H3
100
What phase is Nitrogen in at STP?
Gas
100
What are the STP values for pressure (all 4 of them)
1 atm = 101.3 kPa = 760 mmHg = 760 torr
100
What type of Substance is this: Red Beans and Rice
Heterogenous Mixture
100
What is the percent composition of Br in NaBr
77.7%
200
How many moles is 3.01 x 1023 atoms Uranium
0.5 moles
200
The Molar Mass of Tungsten
183.84 g
200
A compound composed of: 72% iron and 27.6% oxygen by mass.
Fe3O4
200
In this phase of matter particles are least affected by intermolecular forces.
Gas
200
A 250 mL flask contains 3.4 g of neon gas at 45°C. Calculate the pressure of the neon gas inside the flask.
18 atm
200
Southern Lemonade (Sugar dissolved in water and citric acid)
Homogenous Mixture
200
How many Moles are in a sample of 45 grams of Lithium?
6.42 Moles
300
How many moles of Hydrogen are in 2 moles of NH3
6 moles H
300
This element has a molar mass of 118.711g
Tin
300
Write the molecular formulas of the following compounds:
A compound with an empirical formula of C4H4O and a molar mass of 136 grams per mole.
C8H8O2
300
At what temperature and pressure does nitrogen exist in all three states of matter at once?
0.1 atm and -210 ºC
300
You have an even mixture of NO2 dissolved in H2O in a 5 L container and under pressure. If the container is opened why will the dissolved NO2 gas begin to flow out?
Pressure increases solubility and opening the can decreases pressure.
300
Livermorium
Element
300
Calculate the volume occupied by 25.2 g of CO2 at 0.84 atm and 25°C. R = 0.08206 Latm/Kmol.
16.7 L
400
How many grams are in a mole?
the mass number on the periodic table
400
How many atoms are in 3.5 moles of arsenic atoms?
2.124 atoms As
400
DOUBLE JEOPARDY
A compound with a molecular mass of 46.0g/mol and an empirical formula of NO2
NO2
400
DAILY DOUBLE
In this phase of matter particles can move quickly and freely, but not in all directions.
Liquid
400
A mixture of three gases has a total pressure of 1,380 mmHg at 298 K. The mixture is analyzed and is found to contain 1.27 mol CO2, 3.04 mol CO, and 1.50 mol Ar. What is the partial pressure of Ar?
356 mmHg
400
DAILY DOUBLE
Hydroxide
Compound
400
Write the molecular formulas of the following compounds:
A compound with an empirical formula of CFBrO and a molar mass of 254.7 grams per mole.
C2F2Br2O2
500
How many moles of Oxygen do you have if you have 100 Liters of oxygen gas at STP?
4.46 moles
500
DAILY DOUBLE
Molar Mass of Copper (1) Sulfate.
223.154 grams
500
DAILY DOUBLE
A compound with a molecular mass of 70g/mol and an empirical formula of CH2.
C5H10
500
At what approximate Pressure does liquid Nitrogen at -200ºC turn into a solid?
Approximately 10 atm
500
DOUBLE JEOPARDY
Calculate the grams of SO2 gas present at STP in a 5.9 L container.
15 g
500
Hydrated Calcium Sulfate (Gypsum)
Compound
500
What is the Molarity of a solution of 18 grams of carbon dioxide in 800 mL of water?
0.51 M
9999
Write the empirical and molecular formulas of the following compounds:
A compound that is 52.2% Carbon, 17.4% Hydrogen and 30.4% Nitrogen and a molar mass of 92 grams per mole.
EF - C2H8N
MF- C4H16N2