Question

What is the mass of 0.5 mole of water (H2O).

Answer 1

By Avagadro's Theory

No. Of Moles = Weight of Compound / Molecular Weight of Compound

No. Of Moles of Water = Gram Weight/ 18 = 1/2

Gram Weight which is the weight in grams is 9 grams if 1/2 moles of water is taken

Hope it Helps

Answer 2

Hi dear !!!

here is your answer !!!

mole = mass / molecular mass

molecular mass of ( H20 ) = 18


so,

0.5 = mass / 18



0.5× 18 = mass


9 gram



hope it help you dear !!!


thanks !!!