Question:

The volume of water to be added to $100\, cm^{3}$ of $0.5 \,N\, H_{2}SO_{4}$ to get decinormal concentration is

Updated On: Jun 23, 2023
  • $400 \,cm^{3}$
  • $450 \,cm^{3}$
  • $500 \,cm^{3}$
  • $100 \,cm^{3}$
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The Correct Option is A

Solution and Explanation

$N_{1}V_{1}=N_{2}V_{2}$ or, $0.5\times 100=0.1\times V_{2}$ or, $V_{2}=\frac{0.5\times100}{0.1}=500\,cm^{3}$ $\therefore (500-100)=400\,cm^{3}$ water is to be added to $100\,cm^{3}$ of $0.5\,N\,H_{2}SO_{4}$
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Concepts Used:

Solutions

A solution is a homogeneous mixture of two or more components in which the particle size is smaller than 1 nm.

For example, salt and sugar is a good illustration of a solution. A solution can be categorized into several components.

Types of Solutions:

The solutions can be classified into three types:

  • Solid Solutions - In these solutions, the solvent is in a Solid-state.
  • Liquid Solutions- In these solutions, the solvent is in a Liquid state.
  • Gaseous Solutions - In these solutions, the solvent is in a Gaseous state.

On the basis of the amount of solute dissolved in a solvent, solutions are divided into the following types:

  1. Unsaturated Solution- A solution in which more solute can be dissolved without raising the temperature of the solution is known as an unsaturated solution.
  2. Saturated Solution- A solution in which no solute can be dissolved after reaching a certain amount of temperature is known as an unsaturated saturated solution.
  3. Supersaturated Solution- A solution that contains more solute than the maximum amount at a certain temperature is known as a supersaturated solution.