Question

how many no of molecules contain 32 g of oxygen​

Answer 1

Answer:

6.022 x 10to power of 23

Answer 2

Answer:

moles = given mass/ molar mass

= 32/32 =1 mole

moles = no. of molecules/Avogadro's number

no. of molecules = moles * 6.022*10^23

= 1* 6.022*10^23

no.of molecules = 6.022*10^23