IPS Exam Experience
Lab Safety
Nurse-2828
Wear goggles untill Leeds say so
Reaction in a Bag
Mix two substances
They create a gas
Bag expands
Yellow liquids form
Baking Soda
Heat baking soda
Inverted bottle
Water leaves the bottle because baking soda creates gas
Mass of Dissolved Salt
Salt put into bottle
Salt dissolves but all is still there
Ice melt
Ice put into bottle
Ice melts in sun
Mass of Copper and Sulfur
When heated copper and sulfur mix to create a yellow gas
Mass of gas
Alka seltzer put into bottle
Mass of gas is found
3.2
3 cylinders
1 small aluminum cylinder
1 small brass cylinder
If same volume and shape, doesnt mean they have the same mass
Density
2 cubes and slab
Weight doesnt have to do with density
Density of Liquids
liquids mixed with magnesium sulfate
Density of Gas
inverted bottle
Changes are negative, but positive mass
Many errors
density is 1.8