PAGS Flashcards by Asia Kifayat Ullah | Brainscape

Q

Explain why the calculated enthalpy change I’d combustion is less exothermic than data book value?

A

incomplete combustion
-reaction not carried out in standard conditions
-loss of fuel by evaporation

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Q

Draw and label the apparatus for distillation

A

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Q

Draw and label the apparatus for reflux

A

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Q

Method for separating organic layer and aq layer

A

Use a separating funnel
Collect (bottom/top) layer - depending on question
Dry the organic layer with an anhydrous salt e.g. MgSO4
Redistillation: collect fraction at the b.p. given in question

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