Question

avagadro's number represent the number of atoms is
a) 12 g of C12
b) 320 g of sulphur
c) 32 g of oxygen
d) 12.7 g of iodine​

Answer 1

Answer:

a) C12

Explanation: Avogadro's number is the number of atoms in one mole of an element's atoms.

No. of moles = Given weight/Molar Weight

For C12=> C => 12/12 = 1

For Sulphur => S => 320/32 = 10

For Oxygen => O2 => 32/32 = 1 [But these are the molecules of O2 not atoms of O]

For Iodine => I => 12.7/127 = 0.1

So the answer is C12