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test/practice tes
PERCENT WATER IN A HYDRATE
PRELAB QUESTIONS
NAME
The following data were obtained when a hydrate was heated:
crucible + sample
31.781 g
empty crucible
30.501 g
crucible + sample after heating
31.100 g
Calculate the % water in the hydrate. SHOW WORK
1.
Decide whether the sample was BaCl2 2H2O or MgCl2 6H20 by calculating the
theoretical % water in each compound and comparing to your answer in #1. SHOW
WORK.
2.
95.218 g/mole
1
MgCl2
Formula weights:
208.25 g/mole
1
ВаClz
18.0153 g/mole
11
Н.О
89
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Transcribed Image Text:test/practice tes PERCENT WATER IN A HYDRATE PRELAB QUESTIONS NAME The following data were obtained when a hydrate was heated: crucible + sample 31.781 g empty crucible 30.501 g crucible + sample after heating 31.100 g Calculate the % water in the hydrate. SHOW WORK 1. Decide whether the sample was BaCl2 2H2O or MgCl2 6H20 by calculating the theoretical % water in each compound and comparing to your answer in #1. SHOW WORK. 2. 95.218 g/mole 1 MgCl2 Formula weights: 208.25 g/mole 1 ВаClz 18.0153 g/mole 11 Н.О 89
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