Question

what are the mass of 2.5 mole of CO2​

Answer 1

Answer:

1 mole of CO2= 12+2*16= 44g

2.5 mole of CO2= 2.5*44g= 110g

Answer 2

• A mole of any given substance is the mass of that substance taken divided by the molecular weight of that substance.
• Hence, 1 mole of any substance is the molecular mass of the substance.
• Now, the formula used for finding the mass of CO2 is

Mass of CO2 = number of moles x molecular mass of CO2.

The molecular mass of CO2 is 44.

Mass of CO2 = 2.5 x 44

= 110 grams.

Hence, the mass of 2.5 moles of CO2 is 110 grams.