Moles and molular mass
What is the SI unit for amount of substance?
A) Mole
What is the molar mass of water (H2O)?
B) 18 g/mol
What is Avogadro's number?
A) 6.02 x 10^23
Which element has a molar mass of approximately 12 g/mol?
B) Carbon
What is the molar mass of carbon dioxide (CO2)?
B) 32 g/mol
Which of the following is a unit used to measure molar mass?
B) Grams per mole
How many atoms are in one mole of any element?
B) 6.02 x 10^23
Which of the following has the smallest molar mass?
C) Hydrogen (H2)