Question

One mole of any substance contains 6.023 x 1023 particles.
If 3.0115 x 1023 particles are present in CO2 , find the number of moles.

TNSCERT Class 10 Chemistry Ch 10 Atoms and Molecules

Answer 1

We know that:
               1 mol CO2 = 6.023 * $10^{23}$ molecules
               'x' mol CO2 = 3.0115 * $10^{23}$ molecules

x = [tex] \frac{3.0115* 10^{23} }{6.023* 10^{23} } moles \\ \\ 0.5 [/tex] moles

Answer 2

No=6.022*10^23

N=3.015*10^23

n=?

n=N/No

n=3.015*10^23/6.022*10^23

n=0.5 moles of CO2