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What is the accepted literature value for the melting point of benzoic acid?
Benzoic acid,C6H5COOH, also known as benzene carboxylic acid and phenyl formic acid,is a colorless, monoclinic crystalline solid that has a melting point of 122.4″C and sublimes readily at 100·C.
What is the molecular weight of benzoic acid?
122.12 g/molBenzoic acid / Molar mass
What is the melting point range of impure benzoic acid?
119.9-121.0 °C
CONCLUSIONS: The melting point of the impure benzoic acid was 119.9-121.0 °C and the pure was 119.8-120.4 °C. The final/experimental melting point of benzoic acid was 119.3- 120.5 °C.
What is the melting point range of benzoic acid reported in the literature 2 points provide a reference for your data?
For example, pure benzoic acid has a melting point range of 121-123 °C. If benzoic were contaminated with an impurity, the melting point range might decrease and broaden to 117-120 °C.
What is the molecular weight of benzoic acid dissolved in benzene?
488. Hint: The answer to this question includes the concept of reaction of benzoic acid with benzene that is benzoic acid forms a dimer where there is association through intermolecular hydrogen bonding and thus the observed mass will be twice.
How would the melting ranges of impure and pure benzoic acid differ?
Why is the melting point of impure benzoic acid higher than pure benzoic acid?
Why does melting point of impure benzoic acid is higher than that of the pure benzoic acid? Usually the melting point of pure compound should be higher than the impure one, because the impurities messes up of the crystalline lattice by blocking their formation and creates irregularities.
How is the melting point of the compound determined?
The melting point of an organic solid can be determined by introducing a tiny amount into a small capillary tube, attaching this to the stem of a thermometer centred in a heating bath, heating the bath slowly, and observing the temperatures at which melting begins and is complete.
Is benzoic acid stable towards heat?
The three benzoic acid derivatives showed very mild degradation at 150°C. Severe degradation of benzoic acid derivatives was observed at 200°C while their complete degradation occurred at 250°C. However, benzoic acid remained stable at temperatures up to 300°C.
What happens when benzoic acid is dissolved in benzene?
Benzoic acid in benzene undergoes association through intermolecular hydrogen bonding. That’s why observed molar mass of benzonic acid in benzene is more than normal molar mass.
What is the molecular weight of benzoic acid which is added to kerosene?
The observed molecular weight of benzoic acid is 244 g/mol. The Van’t Hoff factor (i) is calculated as the formula shown below.