

Understanding Hydrates and Water Composition
Interactive Video
•
Chemistry, Science, Mathematics
•
9th - 12th Grade
•
Practice Problem
•
Hard
Patricia Brown
FREE Resource
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What are hydrates typically composed of?
Organic compounds with carbon
Covalent compounds with no water
Metallic compounds with oxygen
Ionic compounds with water molecules
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What happens to the water molecules in magnesium sulfate heptahydrate when heated?
They dissolve in the compound
They evaporate or boil away
They become more strongly bonded
They form a solid
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How many water molecules are attached to each MgSO4 in magnesium sulfate heptahydrate?
Six
Seven
Eight
Five
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the molar mass of water used in the calculation?
18.02 g/mol
20.00 g/mol
22.04 g/mol
16.00 g/mol
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the total mass of the hydrate including water?
200.00 g
246.52 g
150.00 g
300.00 g
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What percentage of the hydrate's mass is water?
45.00%
70.00%
51.17%
60.00%
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
If you have 4.5 grams of the hydrate, how much of it is water?
4.0 grams
3.0 grams
2.3 grams
1.5 grams
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