The Mole

Question 1

What is 1 Mole equal to?

Answer 1

1M = 6.022 x10^23 atoms

Question 2

What is 6.022 x10^23 known as?

Answer 2

Avogadro’s number

Question 3

How many molecules are there in 1 mole of molecules?

Answer 3

6.022 x10^23 molecules

Question 4

How many ions are there in 1 mole of ions?

Answer 4

6.022 x10^23 ions

Question 5

How is the average mass of an atom expressed?

Answer 5

The mass is expressed as the atomic mass unit (amu)

Question 6

What is amu?

2

Answer 6

It is a scale of relative masses of atoms

It is the weight of 1/12 the mass of a carbon atom C12

Question 7

What is the mass of one mole of a substance called?

Answer 7

Molar mass

Question 8

What is a dilute solution?

Answer 8

a solution that contains relatively little solute in a large quantity of solvent

Question 9

What is the equation for molarity?

Answer 9

Molarity (M) = moles of solute/litres of solution

Question 10

Define molarity.

Answer 10

Molarity is an expression of the concentration of a solution in moles of solute per litre of solution

Question 11

What is a solute?

Answer 11

A solute is a solution component that is dissolved in a solvent