Transcript Catalyst - Simon Technology

Catalyst
1. Take out your learning target logs and rate
yourself on LT 6.1 – 6.10
2. A 5.0-L flask contains 0.60 g O2 at a
temperature of 22oC. What is the pressure (in
atm) inside the flask?
3.
End
Lecture 6.7 – Unit 6 Review
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Today’s Learning Targets
LT 6.1 – I can explain how pressure is created through the collisions of molecules
with a surface.
LT 6.2 – I can discuss how the diffusion of a gas through a space is the result of the
random motion of a gas molecule.
LT 6.3 – For a given gas, I can define what STP is.
LT 6.4 – I can discuss how the kinetic energy of a gas molecules is related to the
temperature of the gas mixture
LT 6.5 – I can define what absolute zero and relate it to the Kelvin temperature
scale.
LT 6.6 – I can convert between the Kelvin and Celsius temperature scales.
LT 6.7 – I can explain Boyle’s Law, how it relates pressure and volume, and I can
calculate pressure and volume values for a given problem.
LT 6.8 – I can explain Charles Law, how it relates to temperature and volume, and I
can calculate temperature and volume values for a given problem
LT 6.9 – I can explain Gay-Lussac’s Law, how it relates to temperature and pressure,
and I can calculate temperature and pressure values for a given problem.
LT 6.10 – I can calculate the various properties of a gas using the Ideal Gas Law and
the Combined Gas Law.
LT 6.1 and 6.2 – Pressure and
Diffusion
LT 6.3, 6.4, 6.5, and 6.6 –
STP, Celsius and Kelvin
LT 6.7 – Boyle’s Law
Unit 6 – The Gas Laws
LT 6.8 – Gay – Lussac’s Law
LT 6.9 – Charles’s Law
LT 6.10 – Ideal Gas Law
and Combined Gas Law
Important Equations
Pi Pf
=
Ti Tf
Vi V f
PV = P V
=
Ti Tf
PiVi Pf V f
=
PV = nRT
Ti Tf
i i
f
f
Class Example
• 2.00 liters of hydrogen, originally at 25.0 °C
and 0.98 atm, are heated until a volume of
20.0 liters and a pressure of 3.50 atmospheres
is reached. What is the new temperature?
Table Talk
• Determine the number of moles of Kr
contained in a 3.25 liter gas tank at 5.80 atm
and 25.5 °C.
Table Talk
• A gas sample occupies 3.25 liters at 24.5 °C
and 2.4 atm. Determine the temperature at
which the gas will occupy 42.50 L at 1.50 atm
Post – It War!
8 Questions
1. A 20.0 L tank of nitrogen has a pressure of 2.00 atm. Calculate the volume of
the nitrogen if its pressure is changed to 12.0 atm while its temperature
remains constant.
2. At 37.00 °C a gas has a volume of 6.00 L. What will the volume be at 225.0
°C?
3. A gas has a pressure of 0.570 atm at 100.0 °C. What is the pressure at
standard temperature?
4. A gas sample occupies 3.25 liters at 24.5 °C and 2.4 atm. Determine the
temperature at which the gas will occupy 4250 mL at 1.50 atm.
5. Determine the number of moles of Ne contained in a 3.25 liter gas tank at
5.80 atm and 25.5 °C.
6. Determine the volume of occupied by 5.22 grams of SO2 gas at STP.
7. A gas is at standard pressure and volume of 2.45 L. the gas is compressed to
a volume of 0.50 L. What is the pressure if temperature remains a constant
245 K?
8. A gas is collected and it has a volume of 72.0 mL of a gas collected at 10.0
°C and 3.50 atm pressure. What is the volume at if the gas is changed to
Rate Yourself!
• Rate yourself 1 – 4 on LTs 6.1 to 6.10
Stations
• Based on the LTs that you rated yourself
lowest on, begin at the station that you rated
yourself lowest on.
• There will be an exit ticket in 1 hour
Stations
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Station 1 – LT 6.1 and 6.2
Station 2 – LT 6.4, 6.5, and 6.6
Station 3 – LT 6.3 and 6.7
Station 4 – LT 6.8
Station 5 – LT 6.9
Station 6 – LT 6.10
Station 7 – LT 6.7, 6.8, 6.9, and 6.10
Station 8 – LT 6.7, 6.8, 6.9, and 6.10
Station 9 – LT 6.7, 6.8, 6.9, and 6.10
Exit Ticket
1. What is temperature and pressure for STP?
2. Draw the graph that relates pressure and
temperature for Boyle’s Law
3. You have a temperature reading of 25 K.
Convert this reading to °C.
4. Determine the number of moles of He
contained in a 3.33 liter gas tank at 1.40 atm
and 21.25 °C.
Rate Yourself!
• Rate yourself 1 – 4 on LTs 6.1 to 6.10
Convert
Closing Time
• Unit 6 Exam