Density: Math
What is the formula to determine density?
mass/volume
If an object floats in a liquid, how does the density of the liquid compare to the density of the object?
Density of the liquid is greater than the density of the object
What would 1.3kg be in grams? Use correct significant figures!
1300g
What piece of glassware do we use to find the volume of something?
Graduated cylinder
An object has a volume of 64mL and a mass of 68g. What is the density of this object?
1.06g/mL
I have a piece of metal with a density of 5.4g/mL. If I cut off a chunk of it, what will the density of that smaller piece be?
5.4g/mL
Put the number 0.000000760 into scientific notation with correct significant figures.
7.60 x 10-7
What is the name of the tool we use to find the mass of something?
Balance
An object has a volume of 1.02mL and a mass of 0.98g. What is the density of this object?
0.96g/mL
Beaker A has a liquid with density of 1.3g/mL. If I put an object into beaker A and the object sinks, what can I estimate the density to be?
Anything greater than 1.3g/mL
How many sig figs would our final answer have for this math equation?
6.70 x 2.1 =
2 sig figs
What piece of glassware do we usually use to mix things in?
Accepted answers: beaker or flask
An object has a mass of 8.00kg and a
volume of 3.40 x 103 mL. What is the density of the object?
2.35g/mL
I have 2 objects. Both objects have the same mass. Object A has a volume of 10mL and Object B has a volume of 20mL. Which object is MORE dense? WHY?
Object A, because it has the same amount of mass in a smaller amount of space.
What would 45000.0 be in scientific notation? Be careful of sig figs!
4.50000 x 104
Describe how I could use water and a graduated cylinder to find the volume of an object.
Describe water displacement:
1. Find the initial volume of water
2. Put the object in the water and record the volume of water
3. Subtract the final volume - initial volume