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Chemistry
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What are electrophilic addition reactions of alkenes?

Alkenes contain a pi bond, which is a site of high electron density, since it contains a pair of electrons delocalised around the two bonded carbon atoms. Because of this, the pi bond can act as a nucleop...

Answered by Jessica M. Chemistry tutor
1796 Views

Why does the Haber process take place at high temperature and pressure?

Reaction : N2 + 3H2---> 2NH3 is in equilibrium The reaction is exothermic (produces heat) so the equilibrium will favor the left at high temperatures following Le Chatelier's principle. This is to redu...

Answered by Phoebe L. Chemistry tutor
7956 Views

Calculate ΔG (in kJ/mol) of the reaction of molecular oxygen and carbon monoxide to produce carbon dioxide. The reaction occurs at 25°C. ΔH = -566 kJ/mol, ΔS = -173 J/K. Based on the result, determine the spontaneity of the reaction.

First we need to write down the chemical equation and balance it: O2 + 2CO -> 2CO2 Given the data, we can calculate ΔG using the following formula: ΔG = ΔH - TΔS However, before w...

Answered by Katerina M. Chemistry tutor
3509 Views

Give and explain 2 of the anomalous properties of ice caused by hydrogen bonding (3)

Compared to water ice is less dense this is due to hydrogen bonds in the open lattice holding the H2O molecules apart whereas in liquid form the hydrogen bonds break allowing the molecules of w...

Answered by Zahra B. Chemistry tutor
2875 Views

Why can you separate crude oil using distillation?

Different substances (fractions) can be separated as they have slightly different boiling points. Different hydrocarbons condense at different sections of the fractionating column, which is very hot at th...

Answered by Lydia W. Chemistry tutor
2309 Views

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