Question

14. Write the equation for the reaction of zine with hydrochloric acid and balance
the equation. Find out the number of molecules of hydrogen gas produced in
this reaction, when 1 mole of HCl completely reacts at S.T.P.
[Gram molar volume is 22.4 liters at S.T.P.,
Avogadro's number is 6.023 x 1023]
OR​

Answer 1

Answer:

2HCl+Zn   ----->         ZnCl2  +H2

i mole of HCl completely reacts ... in equation we observe that           1 mole of Zn + 2moles of HCl   ------>>   1mole of ZnCl2  +  1mole of H2 molecule                                                                                                                 2moles-----> 1 mole of H2                                                                                     1mole of HCl----> x moles of H2                                                                            X=1X1/2=O.5 moles of H2 molecule