Answers by Zane21409434

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A chemistry student needs to identify an unknown compound using mass spectrometry. The compound has a molecular ion peak at m/z 120 and four major fragment ions at m/z 91, 77, 63, and 45. What is the molecular formula of the unknown compound?

answered Jan 22 in Analytical Chemistry

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A chemical mixture containing 30% ethanol and 70% water needs to be separated using a distillation column. The feed rate is 1000 kg/hr and the desired purity for both products is 99%. The distillation column has 20 theoretical trays, and the reflux ratio is 2.5. Determine the number of trays required to achieve the desired purity for both products.

answered Jan 22 in Chemical engineering

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What is the balanced equation for the oxidation of ethanol to ethanoic acid? Include the oxidation state of each carbon atom before and after the reaction.

answered Jan 21 in Organic Chemistry

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What is the principle of reinforcement in behaviourism?

answered Jan 10 in Psychology

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What does the secretion of the hormone cholecystokinin stimulate the release of?

answered Jan 6 in Science

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