Question

Calculate the number of molecules in 112 g of
Cao.​

Answer 1

Answer:

1.no of mole of cao =112/56=2mole.

No of molecule = 2 × 6.022× 10^23

Answer 2

Answer:

Given that

Mass of CaO,W= 122 g

Moles mass of CaO,M=56 g/mol

∴ Number of moles of CaO ,n= W/M = 122/56 mol

= 2.17857143 mol

Number of molecules ,N=n× N^A

2.17857143 ×6.022×10^23

please calculate