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Why is methylamine a stronger base than aminobenzene?

In methylamine, the lone pair of electrons on the nitrogen atom is more available because of the postive inductive effect of the methyl group, where as in aminobenzene it is less available due to the delocal...
YC
Answered by Young C. • Chemistry tutor
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Explain why the element nickel has a high melting point

Nickel is a metal and therefore it contains positive ions, called protons, which are surrounded by a sea of delocalised electrons, which are negative ions. There is a strong force of attraction between these...
JD
Answered by James D. • Chemistry tutor
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A group 2 metal, M, is reacted with water so that M + 2H2O --> M(OH)2 + H2. 0.162g of metal produces 97.0cm3 of gas at RTP. Identify M.

1 mole of gas is produces for 1 mole of metal used. n (moles) = volume/24000 ---- This is because 1 mole of a gas occupies 24000cm3 of space, so it's a simple ratio to work out moles(H2). = 97/24000 = 0.0040...
CS
Answered by Cory S. • Chemistry tutor
16818 Views

Explain why the first ionisation energy of strontium is less than the first ionisation energy of calcium

Both of these are alkali-earth elements, this means that both elements have the same amount of outer-shell electrons (2 electrons). Strontium is a row below calcium, meaning it has an additional electron she...
CS
Answered by Cory S. • Chemistry tutor
36362 Views

Explain why xenon has a lower first ionization energy than neon.

Xenon has a bigger atomic radius therefore it experiences more shielding.This results in a decrease in nuclear attraction therefore less energy is required to remove an electron from the outermost energy level.
OI
Answered by Olivia I. • Chemistry tutor
15875 Views