AQA GCSE Chemistry Moles

What is the formula to calculate the number of moles in a sample?

• Moles = mass of sample/concentration
• Moles = molar mass/mass of sample
• Moles = mass of sample/molar mass
• Moles = distance/time

What is a Avogadro's constant?

• 6.02 X 10²³
• 6.02 X 10²²
• 6.02 X 10³²
• 6.02

Tags

NGSS.HS-PS1-7

What is the molar mass of water?

• 33
• 18
• 10
• 3

What is the number of moles in 12g of carbon?

• 2
• 0.1
• 1
• 20

What is the number of moles in 180g of water?

• 1
• 0.1
• 6
• 10

What is the number of moles of there are 3.10X10²³ particles?

• 0.5
• 5
• 50
• 2

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

• 3.01X10²³
• 6.02X10²³
• 0.5
• 2

What is the number of moles in 24dm³ of a gas?

• 10
• 0.1
• 1
• 24

What volume would 0.1 moles of oxygen occupy?

• 24
• 32
• 1
• 2.4

What is the formula to calculate the concentration of a solution

• concentration = moles/volume
• concentration = volume/moles
• concentration = moles X volume
• concentration = mass/volume