Question

find out no.of moles og 45 Gram of water​

Answer 1

Answer:

moles of H atoms in 45/18 mole of water= 2×(45/18) moles. Hence number of H atoms in 45g of water = 2×(45/18)×N. (where N is Avogadro's number.)

I don't know whether my answer is right or wrong....

Answer 2

Answer:

18g=1mol

1g=1/18mol

45g=(1/18)45=2.5 mol