Question

If 86.4dm^3 of carbon dioxide gas contains N × 10^23 molecules at room temperature and pressure, find the value of N.​

Answer 1

At T 25 ° C (298 K) and P 1 atm are stated by RTP ⇒ Vm = 24.4 liters / mol

86.4 dm³ = 86.4 L = 86.4/24.4 = 3.54 mol

1 mole = 6.02.10²³ molecules

3.54 x 6.02.10²³ = 21.31 x 10²³ molecules

N = 21.31