Molar mass: The mass of one mole of an
element or compound in grams.
Synonyms for molar mass:
•molecular weight
•formula mass
•formula weight
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Molar mass: The mass of one mole of an element or compound in grams. Synonyms for molar mass: ... Calculate the molar mass of calcium nitrate. Ca(NO3)2.
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Molar mass: The mass of one mole of an
element or compound in grams.
Synonyms for molar mass:
- (^) molecular weight
- (^) formula mass
- (^) formula weight
Practice:
1. Calculate the molar mass of ammonia.
NH 3
14.01g + 3(1.01g) = 17.04 g
**Nitrogen 7 N
Hydrogen 1 H 1.**
How many grams of C 2 H 6 are in 0.988 moles?
2 ( 12. 01 g) + 6 ( 1. 01 g) = 30. 08 g
0. 988 mol ×
30. 08 g
1 mol
= 29. 7 g
Mole Conversion
1. Moles to grams:
Molar mass:
a. How many moles of PbSO 4 are in 158.1 g?
- 1 g × 1 mol
- 3 g = 0. 5213 mol
- 2 g + 32. 06 g + 4 ( 16. 00 g) = 303. 3 g
Molar mass:
2. Grams to moles:
158.1 g PbSO 4 =? mol PbSO 4
4.) Grams to particles:
- 22 mol H 2
O ×
6. 02 × 10
23 molecules H 2
O
1 mol H 2
O
×
3 atoms 1 molecule H 2
O
5. 82 × 10
24