Question

Find the
Weight of 0.2 mole of h2 gas

Answer 1

Given:



number of mole , n= 0.2 n

atomic mass of h atom= 1
atomic mass of h2 molecules = 2

to find : mass or weight of h2 = ?


sol:

moles = mass of element/ atomic mass of element

0.2 = m/2

0.2 *2 = m or mass of h2

0.4g = mass of h2

Answer 2

Answer: ok mate see the attachment below.......

Hope it will help you......

Thanks for asking a nice question.......