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Chemistry
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Why does a sample containing compounds with chiral carbons have no effect on plane polarised light?

For a sample containing chiral carbons to have no effect on plane polarised light there must be an equal amount of each enantiomer in the sample. Enantiomers rotate plane polarised light by the sa...

AH
4177 Views

There are three test tubes. One containing HCl, one containing HBr and containing HI. How could you identify which is in each test tube?

Add acidified AgNO3 to each test tube. HCl will produce a white precipitate, HBr will produce a cream precipitate and HI will produce a yellow precipitate.

AL
Answered by Adam L. Chemistry tutor
9261 Views

Explain why the product of a nucleophilic addition to butanone does not effect plane polarized light.

The nucleophile will attack the d+ carbon atom of the carbonyl group. Since the carbonyl group is planar, attack can occur from either side with equal probability. The product of this reaction ...

PW
Answered by Philip W. Chemistry tutor
8379 Views

Why do certain metals give off different colours when heated?

This is to do with the electrons in the metal atoms. When a piece of the metal is heated, if there is enough energy supplied to the atoms, their electrons are excited and are promoted (jump up) to higher ...

JR
Answered by Josh R. Chemistry tutor
16052 Views

How can you determine the shape of water?

Water consists of two hydrogen atoms covalently bonded to an oxygen atom, the atoms oxygen has 6 outer shell electrons, and wach hydrogen donates one, this results in the structure having 8 electrons, mea...

JM
Answered by JOSHUA M. Chemistry tutor
2483 Views

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