Question

how many molecules are there in 66g of co2​

Answer 1

Answer:

The number of moles in 66 gram of carbon dioxide molecules is 1.5. Explanation: According to avogadro's law, 1 mole of every substance occupies 22.4 L at STP and contains avogadro's number of particles.

Answer 2

Answer:

1.5 Moles

Explanation:

• The weight of an element or combination equal to the atomic weights of its constituents is referred to as a mole.

• Carbon - atomic weight  $12.0$

• oxygen - atomic weight   $16.0$

• 1 mole of   $CO_{2} = 12.0 + 16.0 + 16.0 = 44.0$

• we use the formula  $n= \frac{m}{Mr}$

• Here , m = grams of $CO_{2}$

                   Mr = 1 mole of  $CO_{2}$

66 grams CO2 divided by 44 grams per mole,

• $n = \frac{66}{44}$ = 1.5 mole