B. Percentage of Water in an Unknown Hydrate CUC2·X H20 UNKNOWN # mass of beaker and watchglass + unknown hydrate (before heating) 123.02 123.02 mass of beaker and watchglass 121.98 122.01 mass of unknown hydrate 122.81 122.78 mass of beaker and watchglass + anhydrous compound (after heating) nass of water (before heating - after heating) Show the calculation for the percentage of water for trial 1 (see Example Exercise 2). Percentage of water in the unknown hydrate Average percentage of water C. Water of Crystallization in an Unknown Hydrate 170.48 g/mol molar mass of anhydrous compound (AC) (see Instructor) percentage of water (see Procedure B) percentage of anhydrous compound (AC) Show the calculation for the water of crystallization (see Example Exercise 3). Water of crystallization НО AC• (Based on how rounding goes at various parts of this, there are two possible answers that I'll consider correct. Just put Formula of hydrate Analysis of Alum 138 down one of them.) 60
B. Percentage of Water in an Unknown Hydrate CUC2·X H20 UNKNOWN # mass of beaker and watchglass + unknown hydrate (before heating) 123.02 123.02 mass of beaker and watchglass 121.98 122.01 mass of unknown hydrate 122.81 122.78 mass of beaker and watchglass + anhydrous compound (after heating) nass of water (before heating - after heating) Show the calculation for the percentage of water for trial 1 (see Example Exercise 2). Percentage of water in the unknown hydrate Average percentage of water C. Water of Crystallization in an Unknown Hydrate 170.48 g/mol molar mass of anhydrous compound (AC) (see Instructor) percentage of water (see Procedure B) percentage of anhydrous compound (AC) Show the calculation for the water of crystallization (see Example Exercise 3). Water of crystallization НО AC• (Based on how rounding goes at various parts of this, there are two possible answers that I'll consider correct. Just put Formula of hydrate Analysis of Alum 138 down one of them.) 60
General Chemistry - Standalone book (MindTap Course List)
11th Edition
ISBN:9781305580343
Author:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell
Publisher:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell
Chapter11: States Of Matter; Liquids And Solids
Section: Chapter Questions
Problem 11.145QP
Related questions
Question
Transcribed Image Text:B. Percentage of Water in an Unknown Hydrate
CUC2·X H20
UNKNOWN #
mass of beaker and watchglass + unknown hydrate
(before heating)
123.02
123.02
mass of beaker and watchglass
121.98
122.01
mass of unknown hydrate
122.81
122.78
mass of beaker and watchglass + anhydrous compound
(after heating)
nass of water
(before heating - after heating)
Show the calculation for the percentage of water for trial 1 (see Example Exercise 2).
Percentage of water in the unknown hydrate
Average percentage of water
C. Water of Crystallization in an Unknown Hydrate
170.48
g/mol
molar mass of anhydrous compound (AC)
(see Instructor)
percentage of water (see Procedure B)
percentage of anhydrous compound (AC)
Show the calculation for the water of crystallization (see Example Exercise 3).
Water of crystallization
НО
AC•
(Based on how rounding goes at various
parts of this, there are two possible
answers that I'll consider correct. Just put
Formula of hydrate
Analysis of Alum
138
down one of them.)
60
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