Practice with Hydrates
Quiz
•
Chemistry
•
9th - 12th Grade
•
Practice Problem
•
Hard
Standards-aligned
Kimberly OReilly
Used 43+ times
FREE Resource
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10 questions
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1.
FILL IN THE BLANK QUESTION
5 mins • 1 pt
2.
FILL IN THE BLANK QUESTION
5 mins • 1 pt
3.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
What is the approximate percent composition by mass of CaBr2 (formula mass = 200)?
20% calcium and 80% bromine
25% calcium and 75% bromine
30% calcium and 70% bromine
35% calcium and 65% bromine
4.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
What is the percent composition by mass of aluminum in Al2(SO4)3 (gram formula mass = 342 grams/mole)?
7.89%
20.8%
15.8%
36.0%
5.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
A 4.4 gram sample of a hydrate was heated until the water of hydration was driven off. The anhydrous compound remaining had a mass of 3.3 grams. What is the percentage by mass of water in the hydrate?
75%
33%
67%
25%
6.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
A student obtained the following data to determine the percent by mass of water in a hydrate. What is the approximate percent by mass of water in the hydrated salt?
2.5%
88%
12%
98%
7.
FILL IN THE BLANK QUESTION
5 mins • 1 pt
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