Question

Write chemical formula of epsom salt. Give two uses of \( H_2SO_4 \).

Hint:

The strength of a country's economy can often be measured by its annual consumption of sulfuric acid because it is used in almost every manufacturing process.

Answer 1

Step 1: Understanding the Concept:
Epsom salt is a naturally occurring mineral used in health and agriculture. Sulfuric acid (\( H_2SO_4 \)) is known as the "King of Chemicals" due to its industrial importance.
Step 2: Detailed Explanation:
1. Epsom Salt: The chemical formula for Epsom salt is Magnesium Sulfate Heptahydrate, written as \( MgSO_4 \cdot 7H_2O \).
2. Uses of \( H_2SO_4 \):
(a) Fertilizer Industry: It is used to produce nitrogenous fertilizers like ammonium sulfate and phosphatic fertilizers like superphosphate of lime.
(b) Petroleum Refining: It is used in the refining of petroleum and as a drying/dehydrating agent in various organic syntheses.
(c) Storage Batteries: It is used as the electrolyte in lead-acid storage batteries (as discussed in Q. 29).
Step 3: Final Answer:
The formula is \( MgSO_4 \cdot 7H_2O \). Primary uses include fertilizer production and as a battery acid.