Cambridge IGCSE Chemistry Moles

Front

What is the formula to calculate the number of moles in a sample? Options: Moles = mass of sample/concentration, Moles = molar mass/mass of sample, Moles = mass of sample/molar mass, Moles = distance/time

Back

Moles = mass of sample/molar mass

Front

What is Avogadro's constant?

Back

6.02 X 10²³

Front

What is the molar mass of water?

Back

18

Front

Number of moles in 12g of carbon?

Back

1

Front

Number of moles in 180g of water?

Back

10

Front

Number of moles for 3.10X10²³ particles?

Back

0.5

Front

What is the number of particles in 22g of carbon dioxide?

Back

3.01X10²³

Front

Number of moles in 24dm³ of a gas?

Back

1

Front

What volume would 0.1 moles of oxygen occupy? Options: 24, 32, 1, 2.4

Back

2.4

Front

What is the formula to calculate the concentration of a solution? Options: concentration = moles/volume, concentration = volume/moles, concentration = moles X volume, concentration = mass/volume

Back

concentration = moles/volume