Moles 1
Moles 2
Moles 3
100
What do the questions "how much?" and "how many?" have in common?
asking about quantity
100
What is Avogadro's number?
6.02 x 1023
100
What is the definition of a mole?
An amount defined as the number of carbon atoms in exactly 12 grams of carbon 12
200
What are 2 ways to measure matter?
Scale and Graduated Cylinder
200
How are the terms molar mass and atomic mass different?
Molar mass is the mass of a mole and the atomic mass in the mass of an atom.
200
Which is a better unit for expressing molar mass, amu or grams/mole
grams/mole
300
how many moles of oxygen are in CA (O3)2 ?
3 oxygen atoms
300
What is the formula for density of gas?
D=M/V (density=mass/volume)
300
1 mole of any gas occupies a volume of what number of liters?
22.4 L
400
What is the molar mass of C2H6?
30.02
400
What is the molar mass for chlorine?
71
400
What is the molar mass for N2O5?
108
500
How many moles is 4.56 g of CO2?
.114 molecules CO2
500
How many grams is 9.87 moles of H2O?
178 g H2O
500
What is the density of CO2 at STP?
1.96 g/l
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