Question

How many molecules are in 4.50 moles of CO2

Answer 1

N_molecules = n×N_A = (4.5 mol)/1×(6.022×10^23 molecules)/(1 mol) = 2.71×10^24 molecules

Step-by-step explanation:

Convert from moles to molecules:

4.5 mol carbon dioxide (CO2)

Determine the amount of substance, n:

n = 4.5 mol

Look up Avogadro's constant, N_A, to find the number of molecules in a mole:

N_A = 6.022×10^23 molecules/mol

Multiply n by N_A to convert to the number of molecules, N_molecules:

Answer: N_molecules = n×N_A = (4.5 mol)/1×(6.022×10^23 molecules)/(1 mol) = 2.71×10^24 molecules