Hydrate Pre-Lab Questions
Assessment
•
Kristen Vanderveen
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Chemistry
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10th - 11th Grade
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37 plays
•
Easy
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15 questions
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1.
Multiple Choice
Name the following hydrate: NaCl • 5H2O
sodium chloride
sodium monochloride pentahydrate
sodium chloride pentahydrate
sodium chloride hydrate
2.
Multiple Choice
State the correct name for the following compound: Cr(NO3)3 ⋅ 9H2O
chromium nitrate nonahydrate
chromium (III) nitrate nonahydrate
chromium nitrogen trioxide nonahydrate
chromium (I) nitrate heptahydrate
chromium trinitrate nonahydrate
3.
Multiple Choice
A 15.67 g sample of a hydrate of magnesium carbonate was heated to drive off the waters of hydration. The mass after heating was reduced to 7.58 g. Calculate the percent water by mass in the original hydrate.
7.58 %
8.09%
48.37%
51.63%
4.
Multiple Choice
What is the correct chemical formula for barium hydroxide octahydrate?
Ba(OH)2 . 8H2O
Ba(OH)2 . H2O
8Ba(OH)2 . H2O
Ba . 8(OH)2
5.
Multiple Choice
Calculate the percent water by mass in cobalt(II) chloride dihydrate, CoCl₂•2H₂O.
36.0%
78.3%
21.7%
10.9%
13.9%
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