Answer:
0.00223mol
Step-by-step explanation:
The number of molecules of CO2 (nA) can be used to determine the number of moles it contain by dividing by Avagadros number (6.02 × 10^23 atoms)
That is;
number of moles (n) = nA of CO2 ÷ 6.02 × 10^23
According to this question, there are 1.34 x10^21 molecules of CO2, hence,
n of CO2 = 1.34 x10^21 ÷ 6.02 × 10^23
n = 1.34/6.02 × 10^21-23
n = 0.223 × 10^-2
n = 0.00223mol of CO2