The Scientific Method
The Gas Laws
Pressure, Volume and Temperature
Gas Mixtures and Movement
Scientific Notation and Significant Figures
100
This is the first step in the scientific method
What is "Ask a question."
100
What are the three major gas laws?
What are Boyle's Law, Charles's law and Gay-Lussac's Law
100
If pressure remains constant, when temperature decreases...
What is "volume decreases"
100
This is the contribution each gas in a mixture makes on the total pressure.
What is partial pressure
100
Name a number that has 4 significant figures.
What is 7004 (for example)
200
The second step in the scientific method (do the research) has 3 parts. What are they?
What are 1. Define the system, 2. Choose a variable and 3. Look up information
200
Which law is this: P1 x V1 = P2 x V2
What is Boyle's Law
200
If temperature remains constant, as pressure increases...
What is "volume decreases"
200
the total pressure of a gas mixture is equal to...
What is "the sum of the partial pressures"
200
Write 1,250,000 in scientific notation.
What is 1.25x10^6
300
What step number is "Do the experiment"?
What is Step 4.
300
What law is this: P1/T1 = P2/T2
What is Gay-Lussac's Law
300
If volume remains constant, what happens to a gas as temperature decreases?
What is "pressure decreases"
300
this is when molecules move toward areas of lower concentration until the concentration in the space is the same.
What is diffusion
300
How many significant figures are there in the number 0.00705
What is 3
400
Step 3, make a "reasonable scientific guess" or a...
What is a hypothesis
400
What is the formula for Charles's Law?
What is V1/T1 = V2/T2
400
If pressure remains constant, and volume remains constant, what happens to temperature?
What is "it remains constant too"
400
When gas escapes through a tiny hole in the container we call this...
What is effusion
400
How many significant figures are there in the number 1.4706x10^-13
What is 5
500
After we do the experiment, there are two steps left. They are...
What are 5. Analyze the results and 6. Report the results
500
We use this law, PV = nRT to calculate the number of moles of a contained gas.
What is the Ideal Gas Law
500
If only the amount of gas is held constant, what law do we have to use?
What is the Combined Gas Law
500
What is Graham's Law?
What is rate of A/ rate of B = sqrt(molar mass of B/molar mass of A)
500
If our answer when doing a calculation comes out to be 17.416 but we only want four significant figures, what should our final answer be?
What is 17.42
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