Question

find mass, volume and no. of molecules of carbon dioxide when 108g of carbon burnt in the presence of O2​

Answer 1

Answer:

Explanation:

C + O2 --> CO2

1 mole carbon gives 1 mole CO2

no of moles in 108 gm C = given mass of C  / molar mass of C

no of moles = 108 / 12 = 9 moles

Thus, 9 moles of Carbon will give 9 moles of CO2.

mass of CO2 = 9 * 44 = 396 gm

no of moleccules of CO2 = moles of CO2 * 6.022 * 10^23

= 9 * 6.022 * 10^23 = 54.2 * 10^23

= 5.4 * 10^24