Answer to Question #125295 in Inorganic Chemistry for yogesh

Question #125295
  1. 10 mol of Zn react with 10 mol of HCl. Calculate the number of moles of H2 produced.

                (a) 5 mol                            (b) 10 mol

               (c) 20 mol                            (d) 2.5 mo




1
Expert's answer
2020-07-07T14:37:47-0400

ANSWER SHOUD BE "a".




EXPLANATION ......

Zn reacts with HCl and form ZnCl2 and H2 .


Balance Reaction is Zn + 2HCl ----- ZnCl2 + H2 .


When 10 mol of Zn react with 10 mol of HCl then HCl is Limiting Reagent So HCl Completely React .........


So , 2mol of HCl gives 1 mol of H2 from Balance Reaction ..


So , 10 mol of HCl gives 5 mol of H2 gas from Balance Reaction ..


finally So , 5 moles of H2 gas are produced .


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