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An unknown gas from a reaction is contained in a 2 litre beaker, at standard atmospheric pressure and a Temperature of 25 Celsius. Calculate the number of moles of the gas.

PV=nRT n=PV/RT=(1.01*10 5 0.002)/(8.31 298)=0.0816 moles
JM
Answered by James M. • Chemistry tutor
2242 Views

Can you explain the difference between a real and a virtual image?

The ways in which these two things are experienced in real life is very different - you see a virtual image when you look through a lens or at a mirror, because light is coming at you as if it were coming fr...
DG
Answered by Dan G. • Physics tutor
7489 Views

What are the similarities and differences between competitive and non-competitive inhibition within enzymes?

Competitive inhibition occurs when the substrate and inhibitor molecule are similar in shape and size and therefor compete to bind in the enzymes active site, non-competitive inhibition however is when the i...
SW
Answered by Stella W. • Biology tutor
7934 Views

Explain the process of evolution?

Evolution occurs via a process called natural selection,Natural selection (termed survival of the fittest by Darwin) is where organisms that are better adapted to an environment survive and reproduce. Theref...
SW
Answered by Stella W. • Biology tutor
3847 Views

y(x) = x^2(1-x)e^-2x , find y'(x) in the form of g(x)e^-2x where g(x) is a cubic function to be found

For this question, I would first expand the brackets in the given y(x) to form , x^2e^-2x -x^3e^-2x . With this form, I would then differeniate using the chain rule to then obtain the expression that can eas...
AB
Answered by Arjun B. • Maths tutor
4120 Views