Question

How many moles H2 gas evolved when 13gm of zinc granules dipped into HCl? calculate the amount of Zn and H2 in moles.​

Answer 1

Explanation:

Zn+ 2HCl======>ZnCl2+H2.

Atomic Weight of Zinc= 65.38.

So 65.38 g of Zinc will produce =1mole of H2

13 g of Zinc will produce=1x 13/65.38 =0.1988 mole.

Answer 2

it is 2 bromo 3 chloro butanol not 2 bromo butanol

i am from mancherial and you are from which place

You didn't said what is your class