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MCAT Question of the Day
Q:
A cobalt (II) chloride can form multiple hydrates. Which of the following is the correct molecular formula for a cobalt (II) chloride hydrate with a molecular mass of 238 g/mol?
A
CoCl
2
• H
2
O
B
CoCl
2
• 2H
2
O
C
CoCl
2
• 4H
2
O
D
CoCl
2
• 6H
2
O
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