Chemistry - Organic

Question 1

Geometric isomers arise due to….?

Answer 1

Due to a lack of free rotation of groups around a bond (normally a double bond)

They have components arranged differently with respect to the double bond.

Question 2

Two objects are say to be chiral if….?

Answer 2

If two objects are the mirror image if each other and are not superimposible they are said to be chiral

Question 3

Chilarity is a property assigned to ________ objects?

Answer 3

Assymmetrical

Question 4

Enantiomer?

Answer 4

Isomers that are mirror images of each other are called enantiomers

Question 5

Enantiomers can be told apart by?

Answer 5

They have different effects on the plane of polarised light

Question 6

How can enantiomers not be told apart?

Answer 6

By their physical properties or their chemical reactivity

Question 7

Stereioisomers have….?

Answer 7

Stereoisomers have the same arrangement if atoms but in different spatial arrangements

Question 8

The two ASSUMPTIONS made when calculating the pH it a weak acid (Ka)

Answer 8

As only a tiny amount of HA dissociates, you assume…
[HA] start = [HA] equilibrium

Assume all the H+ ions come from the acid so…. [H+] = [A-]