Measuring Molar Mass
It's easy!
Take H2O for example.
How many hydrogen atoms are there? 2
How many oxygen atoms? 1
Whats the mass of Hydrogen? 1.01 g
Multiply that by 2 because there are two hydrogen atoms. That gives you 2.02 g
Now the mass of Oxygen? 16.00 g
Now add 2.02 g and 16.00 g.
You come up with 18.02 g.
And that is your molar mass for H2O.
Now you know how.
POP QUIZ!!!!!
Find the molar mass.
1. H2O
2. HCl
3. Al2O3
4. Mg(OH)2
5. Ba(OH)2 x H2O
Answers
1. 18.02 g
2. 36.41 g
3. 101.96 g
4. 58.33 g
5. 315.51 g
Take H2O for example.
How many hydrogen atoms are there? 2
How many oxygen atoms? 1
Whats the mass of Hydrogen? 1.01 g
Multiply that by 2 because there are two hydrogen atoms. That gives you 2.02 g
Now the mass of Oxygen? 16.00 g
Now add 2.02 g and 16.00 g.
You come up with 18.02 g.
And that is your molar mass for H2O.
Now you know how.
POP QUIZ!!!!!
Find the molar mass.
1. H2O
2. HCl
3. Al2O3
4. Mg(OH)2
5. Ba(OH)2 x H2O
Answers
1. 18.02 g
2. 36.41 g
3. 101.96 g
4. 58.33 g
5. 315.51 g