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Chemistry
A Level

Order the relative base strength of phenyl amine, methyl amine and methylphenyl amine and outline your reasoning.

Phenyl amine is the weakest base- the benzene group has a negative inductive effect on the lone pair on the nitrogen. Therefore it is less availiable for donation.

Methyl amine is the strongest- th...

TF
Answered by Thomas F. Chemistry tutor
3820 Views

What is a 'foolproof' way to balance any combustion reaction?

While balancing equations by 'observation' or 'trial and error' is possible for simple compounds, it helps to have a general method of balancing these equations, so that, regardless of how complicated an ...

FH
Answered by Farah H. Chemistry tutor
4920 Views

For the equilibrium reaction PCl5(g) (equilibrium arrow)-> PCl3(g) + Cl2(g) explain the effect of increasing the concentration of Chlorine gas using the equilibrium constant.

Kc=[Cl2(g)][PCl3(g)]/[PCl5(g)] for this reaction. The rate constant is not affected by changes in concentration and hence an increase in the concentration of Chlorine causes an increase in the concentrati...

JH
Answered by James H. Chemistry tutor
12442 Views

How do I know if an enthalpy change should be positive or negative?

A negative enthalpy change represents an exothermic change where energy is released from the reaction, a positive enthalpy change represents an endothermic reaction where energy is taken in from the surro...

AS
Answered by Alex S. Chemistry tutor
77323 Views

Which Ion from Na+ and Mg2+ has a smaller atomic radii? Explain why?

The smaller ion of the two would be Mg2+. Both ions have the same electronic arrangement so the amount of shielding occuring for both ions is the same. The key difference between the ions that ...

TB
Answered by Tanvi B. Chemistry tutor
16970 Views

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