Question

From 320mg
mg of
0 6.023x10^21 molecules are removed
the number of
moles remained are​

Answer 1

Answer:

Answer

Correct option is

A

9×10

−3

moles

32g of O

2

=1mol=6.023×10

23

molecules

∴320mg=0.32g=0.01mol=6.023×10

21

From this 6.023×10

20

moles are removed= 0.001 moles

∴ Remaining= 0.01−0.001=0.009 moles

=9×10

−3

moles