Moles
10 Questions
| Total Attempts: 45
Settings
Understanding the Mole Concept
Questions and Answers
- 1.Define a mole?
- 2.What is Avogadro's number?
- 3.How many moles of atoms are in 45.0g of gold?
- 4.In photosynthesis, plants use energy from the sun to combine carbon dioxide and water, forming glucose and oxygen. How many moles of glucose are 90.0g of glucose?
- 5.Milk of magnesia, Mg(OH)2, is used to neutralize stomach acid. How many moles are in 26.89g of magnesium hydroxide, Mg(OH)2?
- 6.How many moles are in 17.7 g of KMnO4?
- A.
0.122 grams of KMnO4
- B.
0.122 atoms of KMnO4
- C.
0.122 formula units of KMnO4
- D.
0.112 mol KMnO4
- 7.What is the molar mass of water? (Whole number with correct units)
- 8.
- A.
9.96 e-18 moles of copper
- B.
6,000,000 atoms of copper
- C.
1 mole of copper atoms
- D.
6,000,000 moles of copper atoms
- 9.How many atoms of gold are in 1.00 gram of gold?
- 10.How many molecules of water are in 18 grams of water?
Back to top