Unit 6 Exam Review Questions - Weeblyjohwang.weebly.com/uploads/1/0/8/7/10876267/ch_13_-14... ·...
Transcript of Unit 6 Exam Review Questions - Weeblyjohwang.weebly.com/uploads/1/0/8/7/10876267/ch_13_-14... ·...
Unit 6 Exam Review Questions
Review Question 1
• What’s the polarity?
NONPOLAR
Review Question 2
• What is the IMF (intermolecular force)
between these molecules?
LONDON DISPERSION
Review Question 3
• What is the most likely state of this molecules
at normal conditions of P and T?
GAS
Review Question 4
• What’s the polarity?
POLAR
Review Question 5
• What is the IMF (intermolecular force)
between these molecules?
HYDROGEN BONDING
Review Question 6
• What is the most likely state of this molecules
at normal conditions of P and T?
LIQUID
Review Question 7• What is the normal melting point?
273 K
Review Question 8• What is the normal boiling point?
373 K
Review Question 9• What’s the temperature and pressure of the
critical point?
647 K 647 K
and
374 atm
Review Question 10• What process or change is occurring?
FREEZING
Review Question 11• What process or change is occurring?
SUBLIMATION
Review Question 12
• What instrument is used to measure the
volume of a gas that is produced in a reaction?
EUDIOMETEREUDIOMETER
Review Question 13
• Is the graph below depicting a DIRECT
relationship or an INDIRECT relationship?
INDIRECT
INVERSE
• Which gas law is depicted in the graph above?
INVERSE
BOYLE’S LAW
Review Question 14
• What type of relationship is there between T
and V?
DIRECT
• Which gas law describes this relationship
between T and V?
DIRECT
CHARLES’ LAW
Review Question 15
• What are the conditions of STP (in °C and atm)?
0 °C 1 atm
• In K and torr?
273 K 760 torr
Review Question 16
• What affects the kinetic energy (motion) of
molecules?
TEMPERATURE
• What type of relationship exists between kinetic
energy and temperature?
DIRECT
Review Question 17
• Which droplet has molecules with the strongest
IMF?
• What is this property of liquids forming drops
based on IMF called?
• What is the most likely IMF affecting the
molecules in the drops in the figure on the right?
SURFACE TENSION
DIPOLE-DIPOLE or HYDROGEN BONDING
Review Question 18
• What type of solids do most ionic compounds
and covalent molecules form that have
repeating, geometric patterns like a lattice?
CRYSTALLINE
• What type of solids are blob or irregular shaped?
CRYSTALLINE
AMORPHOUS
Review Question 19
• Under what conditions do most ideal gases start
to become “real” or stop acting like gases?
HIGH PRESSURES and/or HIGH PRESSURES and/or
LOW TEMPERATURES
Review Question 20
• Kelvin temperature will never be this?
• What temperature will all molecules stop
NEGATIVE
• What temperature will all molecules stop
moving?
• What is this temperature called?
0 K or -273 °C
ABSOLUTE ZERO
Review Question 21
• What’s constant?
A balloon is filled to a volume of 3.0 L at a
temperature of 24 °C. What is the volume when
the balloon is put in a freezer where the the balloon is put in a freezer where the
temperature is -5 °C?
PRESSURE
Review Question 22
• If you wanted to see what happens to a gas in a
container with a movable piston (expandable
container) when you change the conditions, how
would you be able to do this?would you be able to do this?
USE THE COMBINED GAS LAW EQUATION
1 1 2 2
1 2
P V P V =
T T
Review Question 23
• There are 3 conversion factors (as well as a
balanced equation) you need for the following
problem:
H gas and O gas combined to form H O. If 5 g of H2 gas and O2 gas combined to form H2O. If 5 g of
H2 is available for reaction at STP, how many
liters of O2 is necessary?
• What are the 3 necessary conversion factors?
1) MM of H2
2) MR
3) MV
Review Question 24
• What is necessary to solve the following:
What volume of Cl2 gas would result 0.74 moles of
Cl2 is under 200 kPa of pressure at a temperature
of -10 °C?of -10 °C?
• Before using PV = nRT, what should you do first?
PV = nRT
1) Convert kPa ���� atm
2) Convert °C ���� K
Review Question 25
• Pressure is increased from 1 atm to 5 atm. What
will happen to volume? DECREASE
1 1 2 2
1 2
P V P V =
T T
will happen to volume?
• Is there anything you can do to INCREASE volume
while still increasing the pressure?
DECREASE
INCREASE TEMPERATURE
STUDY HARD FOR THE EXAM ON
FRIDAY!FRIDAY!
GOOD LUCK!