Question

what weight of zinc is required to produce 0.214g of hydrogen by its reaction with dilute sulphuric acid

Answer 1

Given:

Mass of Hydrogen produced = 0.214 gm

To Find:

Mass of Zinc required to produce given amount of hydrogen.

Calculation:

- The reaction between zinc and HCl is given as:

Zn + 2HCl → ZnCl2 + H2

⇒ Mass of Zn required to produce 2 gm of H2 = 65 gm

⇒ Mass of Zn required to produce 0.214 gm of H2 = (65/ 2) × 0.214

⇒ Mass of Zn required to produce 0.214 gm of H2 = 6.955 gm

- So, 6.955 gm of zinc is required to produce 0.214 gm of hydrogen by its reaction with dilute sulphuric acid.