Question

a flask contains 4.4g of CO2 gas . calculate:(a)how many moles of co2 gas bdoes it contains

Answer 1

0.1 Moles

Given:

Weight of CO2 = 4.4 grams

To Find:

Number of molecules present in 4.4 grams of Carbon dioxide

Calculating:

Let us first calculate the molar mass of CO2:

= 12 x 1 + 16 x 2

= 12 + 32

= 44

Formula used to calculate the number of moles:

= Mass Given / Molar Mass

Substituting the values known to us in this formula we get:

= 4.4 / 44

= 0.1 mole

Therefore, the number of moles present in the flask of 4.4 grams of carbon dioxide is 0.1 moles.