Question

find the number of atoms with explanation in.
I) 2g of h2gas.
ii) 27g of aluminum.
III) 2.3 g of sodium
plzz solve it​

Answer 1

Answer:

hi there

REMEMBER THAT 1 MOLE CONTAINS AVAGADRO NUMBER OF ATOMS(6×10^23) 1.Molar weight(weight of 1 mole) of H2 is 2gm

so 2 gm contains 6×10^23 atoms

2. it is also same molar mass of Aluminum is 27gm only so same answer and same explanation as above

3. molar mass of sodium is 23

so 23gm contains 6×10^23 atoms

then 2.3 gm contains definitely 6×10^22 atoms