Question:

25 mL of a solution of barium hydroxide on titration with a 0.1 molar solution of hydrochloric acid gave a titre value of 35 mL. The molarity of barium hydroxide solution was

Updated On: Jun 23, 2023
  • 0.07
  • 0.14
  • 0.28
  • 0.35
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Solution and Explanation

$ { Ba(OH)2 + 2HCl -> BaCl2 + 2H2O}$ $\frac{M_1V_1}{n_1} = \frac{M_2V_2}{r_2}$ $[Ba(OH)_2] $ $ [HCl]$ $\frac{M_1 \times 25}{1} = \frac{0.1 \times 35}{2}$ $M_1 = \frac{0.1 \times 35}{2 \times 25}$ = 0.07 M.
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Notes on Solutions

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.