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Chemistry
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What is meant by the term optical isomerism?

Optical isomerism is a form of stereoisomerism (different arrangement of the same atoms in 3D space) which is caused by the presence of a chiral carbon in a molecule. A chiral carbon is a carbon with four...

SM
Answered by Sophie M. Chemistry tutor
2366 Views

Can you explain hydrogen bonding?

Hydrogen bonding is a type of dipole-dipole interaction (dipole being when a molecule has unequal sharing of electrons across a bond). It is a particularly strong type dipole-dipole interaction and can on...

DD
Answered by Daniel D. Chemistry tutor
1358 Views

Why do the atomic radii of the elements decrease across a period?

Moving across a period the number of protons and neutrons that make up the nucleus of the element increases. The increase in the number of positively charged protons results in an increased nuclear charge...

HK
Answered by Harry K. Chemistry tutor
2169 Views

How can pressure affect the equilibrium shift of a reversible gaseous reaction?

Le Chatelier's Principle states the if a change is applied to a system in equilibrium, then the position of equilibrium will move to counteract that change. So, if the pressure was increased for a reactio...

TW
Answered by Tejal W. Chemistry tutor
2651 Views

In a titration, 45.0 cm^(3) of 0.100 mol dm^(-3) sodium hydroxide solution is exactly neutralised by 40.0 cm^(3) of a dilute hydrochloric acid solution. Calculate the concentration of the hydrochloric acid solution in mol dm^(-3).

First of all, summarise everything that you know in a table or in brief notes:NaOH, 45 cm^(3), 0.1 mol dm^(-3)HCl, 40 cm^(3)The first thing that you need to do is to find the number of moles of NaOH. This...

LJ
Answered by Lauren J. Chemistry tutor
5429 Views

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