InterviewSolution
Saved Bookmarks
| 1. |
Hydrogen gas is prepared in the laboratory by reacting dilute HCl with granulated zinc, Following reaction takes place `Zn+2HClrarrZnCl_(2)+H_(2)` Calculate the voluem of hydrogen gas liberated at STP when 32.65 g of zinc reacts with HCl. 1 mol of a gas occupies 22.7 L volume at STP, atomic mass of Zn=65 .3uA. 10.03 LB. 11.35 LC. 11.57 LD. 9.53 L |
|
Answer» `underset(65.3g)(Zn) + 2HCl to ZnCl_2 + underset (22.7L)(H_2)` According to the equation, 65.3g of Zn liberates = 22.7 L of `H_2` 32.65g of Zn will liberate `=(22.7)/(65.3)xx32.65=11.35L` |
|