Are these correct? 1. Sodium borohydride is stable in acidic aqueous solutions. True F alse 2. When
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Question:
Are these correct?
1. Sodium borohydride is stable in acidic aqueous solutions.
True
False
2. When we add hydrochloric acid in the work up step to the reaction a gas is observed. What is the composition of the gas?
Nitrogen
water
Hydrogen
Carbon dioxide
Vanillin
3. When isolating the solid after recrystallization using vacuum filtration what solvent should you use to aid in the rinse from the Erlenmeyer flask to the vacuum filter funnel?
Cold ethanol
Cold water
Cold ethyl acetate
Hot water
Cold acetone
Select the name of the catalyst used for this reaction, if there was no catalyst used, select none: a. Sodium borohydride b. Sodium hydroxide c. Vanillin d. None |
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