Show:
Info
Single Step
Multi-step
Density
Definitions
100
The word mole is only used in chemistry?
False. A mole is also an animal. :)
100
What volume is occupied by 3.1x10^-3 mol of NO gas at STP?
0.069 L
100
How many molecules are there in 64.0g of FeS(s)?
4.38x10^23 molecules
100
How many molecules are contained in 1.48 mL of CS2(l)? (D=1.26 g/mL)
1.47x10^22 molecules
100
The base unit is the gram.
Mass
200
Why do we use moles?
To make calculations easier
200
38.6 mL of CO2 gas at STP is how many moles?
1.72x10^-3 moles
200
What volume does 85.0 mg of oxygen gas occupy at STP?
0.0595 L
200
6.02x10^23
Avogadro's number
300
Density and volume are NOT SI units because they are a combination of base units. What is the term for this?
Derived units
300
What does STP stand for?
Standard Temperature and Pressure
400
The SI unit of amount of substance.
The mole
400
Fits in the mole hill beside mass.
Density
500
A mole is the quantity of anything that has the same number of particles found in 12 grams of what?
Carbon-12
500
What is the volume occupied by one mol of gas?
Molar volume