Question

What is the quantity of carbon In co2 where co2 weight is 88g

Answer 1

Answer:

The mass number of CO2 = 2x16 + 12 =44 so one mole of C02 has a mass of 44g. Two moles of CO2 weighs 2 x 44 = 88g

Explanation:

Answer 2

Explanation:

The mass of one mole of a substance is equal to it's mass number (or the sum of mass numbers of the constituent particles in a molecule). Therefore you can work out how many moles in a given mass of substance like this:No of moles = mass of substance/(mass number of substance)you can rearrange to work out the mass like this:mass (in grams) = no of moles x mass number of substanceSo for example one mole of carbon weighs 12g. The mass number of CO2 = 2x16 + 12 =44 so one mole of C02 has a mass of 44g. Two moles of CO2 weighs 2 x 44 = 88g.The number of moles in 22g of CO2 = 22/44 = 0.5.One mole always contains the same number of particles which is given by avagadro's number.