Question

(a) 32g of co2 conatins how many molecules

(b) 2.24 N2 conatins hoe nany molecules at stp

(c)22g of Co2 conatins how many molecules​

Answer 1

Answer:

(a) This is carbon dioxide. Molecular weight of carbon dioxide is 44 g.

Hence the no. of molecules present in 32 g of co₂ is $\frac{32}{44}$ * Nₐ

Nₐ is Avagadro's constant = 6.023 * 10²³

(b) 22.4 litres of any liquid is equal to 1 mole. Hence 2.24 L of N₂ = 0.1 mole.

no.of molecules = 0.1 * Nₐ

I can't answer the option c because I don't know whether it is carbon dioxide or cobalt