Mass of KCl that dissolves in 100g of water at 0oC = _______ g
Mass of NaCl that dissolves in 100g of water at 0oC = _______ g
Temperature at which the solubility of NaCl and KCl are equal = _______ oC
As the temperature increases the solubility of KCl _______
As the temperature increases the solubility of NaCl _______
At 10oC the solubility of NaCl is _______ than the solubility of KCl.
Question 13
13.
Magnesium oxide (MgO)
Question 14
14.
Carbon monoxide (CO)
Question 15
15.
Water (H2O)
Solid
liquid
gas
rrangement) Particles become further apart / more space between particles in a gas / no longer in contact with each other / move over a larger space (Movement) Move faster / more kinetic energy
Close together
further apart
vibrate in place
move most slowly
move most rapidly
most energy
least energy
regular arrangement
irregular arrangement
Solid
liquid
gas
Match the description to the state
Note some descriptions describe more than one state.
has a fixed shape
takes the shape of the bottom of a the container
takes the shape of the container
can flow
can be compressed
diffusion is most rapid
in-compressible
diffusion is slowest
Solid
liquid
gas
Apparatus
add potassium chloride
mass balance
measure mass
thermometer
measure 100 cm3 of water
spatula
measure temperature
measuring cylinder
Method
Add the water to the beaker
First Measure 100 cm3 of water using a measuring cylinder
Add potassium chloride until no more will dissolve
Measure the mass of the water and beaker with a mass balance
Calculate the mass of salt using mass of salt water in beaker - mass of water in beaker
Finally Repeat the experiment using different temperatures of water.
Measure the mass of the salt solution with a mass balance
Measure the temperature of the water with a thermometer
