Question

Calculate the total number of molecules ,oxygen atom and neutron in4.4 g of co2

Answer 1

Answer:

molar mass of CO2 = 44 g/mol

Number of moles in 4.4 g of CO2

= 4.4/ 44 = 0.1 moles

One mole of CO2 contains = 2 moles of oxygen atoms

0.1 mole contains =2 × 0.1 = 0.2 moles of oxygen atoms = 0.2 x 6.023 x 10^23 = 1.246 x 10^23 oxygen atoms