Questions by ConnorWatkin

0 votes

1 answer 28 views

How can a chemistry student prepare phenylalanine from benzyl chloride and ammonia? What is the step-by-step process involved in the synthesis and what are the necessary reagents and conditions required for the reaction to take place? How can the purity of the obtained phenylalanine be determined and what are the potential sources of error in the experiment?

asked Feb 4 in Chemical synthesis

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1 answer 51 views

Calculate the standard molar entropy change for the reaction: 2 SO2(g) + O2(g) → 2 SO3(g) at 298 K, given the following standard molar entropies: ΔS°(SO2(g)) = 248.2 J K^-1 mol^-1 ΔS°(O2(g)) = 205.0 J K^-1 mol^-1 ΔS°(SO3(g)) = 256.2 J K^-1 mol^-1

asked Feb 3 in Quantum Chemistry

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1 answer 68 views

A sample of 55.0 g of ethanol at 25°C is vaporized at its normal boiling point. The enthalpy of vaporization for ethanol is 38.56 kJ/mol. Calculate the amount of heat energy required for this process.

asked Jan 22 in ThermoChemistry

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1 answer 55 views

What is cognitive bias modification for eating disorders?

asked Jan 20 in Psychology

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1 answer 10 views

According to Behavioural Theory, what are the two categories of leadership behaviours?

asked Jan 17 in Psychology

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1 answer 32 views

According to the social identity theory, what is the self-categorisation?

asked Jan 16 in Psychology

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