WorksheetsChemistry: The Mole
Total questions: 13
Worksheet time: 37mins
How many moles of H are in one mole of the compound (NH4)3PO4?
4
3
12
7
How many moles of Cl are in 3 moles of CaCl2?
1
2
3
6
What is the formula for calculating percent composition?
What information do you need to calculate percent composition by mass?
Temperature of the system in Kelvin
Chemical formula or actual masses
The abundance of each isotope
Number of protons and electrons
What is Avogadro's number?
6.02 x 1023
1 mole
600 million
6.02
What is the Molar Mass of Platinum (Pt)?
195.08 g/mol
78 g/mol
106.4 g/mol
145 g/mol
What is the difference in molar mass and formula weight?
You get molar mass from the periodic table, but you get formula weight from Avogadro's number.
Formula weight is the weight of 1 mole, while molar mass is the mass of only 1 particle
There is no difference.
Molar mass is the mass of 1 mole, while formula weight is the weight (mass) of only 1 particle
What percentage of the total atomic mass of carbon monoxide (CO) is composed of carbon?
29%
43%
57%
73%
H = 50%
H = 14.3%
H = 7.8%
H = 28.1%
