Gas Laws
Conversions
Problems
True or False
Random
100
Two factors affect the physical state of matter of a substance. What are they?
1 Attractive Forces between the molecules 2 Kinetic Energy of the molecules
100
A substance has a density of 0.30 g/L and occupies a volume of 5mL. How many kilograms is this equal to?
1.5 x10^6 kg
100
7 days = _____________seconds
604,800 seconds
100
Molecules in an ice cube are more attracted to each other compared to molecules in water vapor. True or False
False
100
What does STP stand for?
Standard Temperature Pressure
200
Explain why balloons expand when placed in a vaccum
The less pressure, the more volume
200
Number of atoms in 0.25 mol of Ag
1.5 x10 ^23 atoms
200
Predict the products and balance the following reaction: Al2(SO3)3 + NaOH >
Al2(SO3)3 + 6 NaOH > 3Na2SO3 + 2 Al(OH)3
200
The three gas laws can be combined and expressed by a mathematical expression called combined gas law. True or False?
True
200
Scientists agreed that at STP, the pressure would be _______atm and the temperature ______K
1atm and 273K
300
Which gas law states that: At a constant volume, pressure and temperature are directly proportional
GayLussac's Law
300
Calculate the number of mols of Ni in 1.75g of pure Ni
0.02 mol
300
Predict the Products and Balance the following reaction: C2H6 + O2 >
2 C2H6 + 7 O2 > 4 CO2 + 6 H2O
300
Charle's Law states that: At a constant Volume: Pressure and Temperature are inversely proportional. True or False?
False. At a constant pressure: Volume and Temperature are directly proportional
300
In the ideal gas law, What is the value for the ideal gas constant?
0.0821 L*atm/mol *K
400
What is Boyle's Law?
At a constant temperature: Volume and Pressure are inversely proportional
400
What is the weight of 2.35x1023 molecules of Fe2S3 in grams?
81.15 grams of Fe2S3
400
If you start with 5.5 grams of lithium chloride, how many grams of calcium chloride will be produced? 2LiCl + Ca > CaCl2 + 2Li
7.20 g CaCl2
400
The formula for the Ideal Gas Law is: PV=nRT. True or False?
True
400
1 mole of any gas at STP occupies a volume of _______ L
22.4 L
500
What is Avogadro's Law?
If the temperature, pressure and volumes of two gases are the same, the two gases contain the same number of molecules regardless of their identity
500
If you have a sample of 3.6 mol of N2O3 How many atoms of oxygen are there is the sample?
6.5x10^24 atoms of oxygen
500
How many grams of Al will be produced if you have 25.4g of Al2O3 and 10.2g of Fe? Al2O3 + Fe > Fe3O4 + Al
4.37g of Al
500
The following reaction is a Single Replacement reaction. True or False? C3H8 + 5O2 > 3CO2 + 4H2O
False
500
In PV=nRT, Wat are the units of R?
L* atm/mol *K
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