1) Solubility Experiments Flashcards
SOLUBILITY EXPERIMENT NOTES:
(Preparation) -
Add 100g of water to a beaker.
Place the beaker on to a balance and record the mass.
Slowly add the solute, stirring the solution after each amount is added to make sure that it all dissolves.
Continue until no more solid will dissolve.
(Recordings)
Record the final mass.
Calculate the mass of solid that dissolved by subtracting the initial mass from the final mass.
Repeat the investigation twice more and calculate a mean.
Repeat from step one at different temperatures to allow a comparison of solubility.
SOLUBILITY EXPERIMENT NOTES:
(Preparation) -
Add 100g of water to a beaker.
Place the beaker on to a balance and record the mass.
Slowly add the solute, stirring the solution after each amount is added to make sure that it all dissolves.
Continue until no more solid will dissolve.
(Recordings)
Record the final mass.
Calculate the mass of solid that dissolved by subtracting the initial mass from the final mass.
Repeat the investigation twice more and calculate a mean.
Repeat from step one at different temperatures to allow a comparison of solubility.
How do you find out the mass of the solid dissolved in the solubility experiment?
subtract an initial mass from final mass
DIFFUSION EXPERIMENT NOTES:
(Method) -
Fill one of the gas jars with bromine gas, which appears red-brown.
Leave the second gas jar empty.
Place one gas jar on top of the other gas jar.
Separate the two with a piece of card.
Remove the card. When the card is removed, the red-brown colour from the first gas jar spreads into the second jar as the bromine gas diffuses.
After a few minutes, both gas jars are the same colour.
DIFFUSION EXPERIMENT NOTES:
(Method) -
Fill one of the gas jars with bromine gas, which appears red-brown.
Leave the second gas jar empty.
Place one gas jar on top of the other gas jar.
Separate the two with a piece of card.
Remove the card. When the card is removed, the red-brown colour from the first gas jar spreads into the second jar as the bromine gas diffuses.
After a few minutes, both gas jars are the same colour.
When do you stop adding solute in the solubility experiment?
until no more solid will dissolve
