1. (a) Are bromobenzene and methyl benzoate solids or liquids? (b) What is the d
ID: 480753 • Letter: 1
Question
1. (a) Are bromobenzene and methyl benzoate solids or liquids?
(b) What is the density of the liquid(s)?
(c) What are the molecular weights of bromobenzene and methyl benzoate?
2. (a) How many moles of bromobenzene react with 1 mol of methyl benzoate?
(b) How many moles of triphenylmethanol are produced per mole of bromobenzene? Per mole of methyl benzoate?
3. (a) How many grams of triphenylmethanol can be produced from 0.5 mL bromobenzene and 0.2 mL methyl benzoate? (Show your work)
Br Mg bromobenzene methyl benzoate MgBr OMgBr HOT MgB H SO OH H20 triphenylmethanol Chemical Formula: 190 n 16 Molecular Weight: 260.34Explanation / Answer
1. (a) bromobenzene and methyl benzoate both are liqiuds
(b) bromo benzene density 1.5 g/cm3 and methyl benzoate density is 1.08 g/cm3
(c) bromobenzene molecular weight: 157.01g/mol, methylbenzoate 136.15g/mol
2. (a) 2 moles of bromobenzene reacts with one mole of methyl benzoate
(b) one mole of tirphenylmethanol is produced per one mole of bromobenzene
3. (a)methyl benzoate ( 1eq) reacts with 2 eq of bromobenzene, by calculating theoretical yeild
= ( molecular weight of triphenyl methanol / molecualr weight of methylbenzoate)*100
= (260.34/136.15)*100= 0.412 g
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