Question #ca49c

1 Answer
P dilip_k
Jan 31, 2017

Balanced equation of the given reaction

#Zn(s)+2HCl(aq)->ZnCl_2(aq)+H_2(g)#

As per this equation the interacting mole ratio of #Zn and HCl# is #1:2#
Reacting amount of #HCl# i= 8.2L 3.5 M HCl = #8.2xx3.5mol=28.7mol# HCl. If it requires #xmol# Zn then

#x/28.7=1/2#

#=>x=28.7/2mol=28.7/2molxx65.3g"/mol"~~937g#

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