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Explain why average bond enthalpies can be used for cyclohexane but not for benzene

Benzene has a resonance structure while cyclohexane consists of only single bonds of the same length. Benzene's resonance structure means it has intermediate bond lengths and strengths. This means average bo...
CM
Answered by Chloe M. • Chemistry tutor
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Calculate the pH of a 4.00 x 10^-2 mol dm^-3 solution of Ba(OH)2

The easiest way to answer this question is by using the equation pH + pOH = 14. Firstly, we need to work out the number of moles of OH - in the solution. As the formula for Ba(OH) 2 shows that it has 2 moles...
CM
Answered by Chloe M. • Chemistry tutor
14656 Views

How are Van der Waals interactions formed between molecules?

This questions relies on understanding of electronegativity, instantaneous dipoles and temporary induced dipoles.Van der Waal's forces (also called London Dispersion Forces) are weak intermolecular forces be...
IC
15210 Views

In reaction kinetics, what parameters affect the rate of the reaction?

The rate of a reaction is affected by the concentration of the reactants, the action of a catalyst and the temperature. If we change the concentration of the reactantants, the reaction rate is going to chang...
DK
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Sort the following substances MgO, Na, H2O, H2S, NaCl, in the order of increasing melting temperature.

This question deals with the properties of substances and how they relate to their internal structure. First, we of course need to understand what the property we are asked to evaluate means. Melting tempera...
MM
Answered by Marcin M. • Chemistry tutor
15766 Views