What mass of 60% HCl(by mass) is required to completely react with 0.2 mol of zinc and what volume of

According to stoichometry,

 

1 mole of Zn will give 2 mole of HCl

 

and, .2 mole of Zn is given.

 

Hence, moles of HCl will be .2/2=.1 moles of HCl

 

Number of Moles=wt/mol. wt

 

.1=wt of HCl/MOl.wt of HCl

 

.1=wt of HCl/36.5

 

wt of HCl =3.65 g

and,  60% of HCl is=2.19 g

 

We know that,

 

1 mole of gas has 22.4 L Volume

 

Here,

 

According to stoichometry,

 

1 mole of Zn will give 1 mole of H₂

 

Hence, . 2 moles of H₂

 

means, .2*22.4 L=4.48 L of H₂