Question:
50 cc of oxalic acid is oxidized by 25 cc of 0.20 $ { N \, KMnO_4}$. The mass of oxalic acid present in 500 cc of the solution is
50 cc of oxalic acid is oxidized by 25 cc of 0.20 $ { N \, KMnO_4}$. The mass of oxalic acid present in 500 cc of the solution is
Updated On: May 12, 2024
- 3.15 g
- 31.5 g
- 6.3 g
- 63 g
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The Correct Option is A
Solution and Explanation
$N_1V_1=N_2V_2$
$N_1 \times 50 = 0.20 \times 25$
$N_1 = 0.1$
Now,
Normality = $\frac{w_2}{ {E wt. \times Volume\, in\, mL\, or\, cc }}$
Hence, mass of oxalic acid in 500 cc of solution can be calculated as
$0.1 = \frac{w_2 \times 1000}{63 \times 500}$
$w_2 = 3.15 \, g$
$N_1 \times 50 = 0.20 \times 25$
$N_1 = 0.1$
Now,
Normality = $\frac{w_2}{ {E wt. \times Volume\, in\, mL\, or\, cc }}$
Hence, mass of oxalic acid in 500 cc of solution can be calculated as
$0.1 = \frac{w_2 \times 1000}{63 \times 500}$
$w_2 = 3.15 \, g$
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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:
- Unsaturated Solution- A solution in which more solute can be dissolved without raising the temperature of the solution is known as an unsaturated solution.
- 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.
- Supersaturated Solution- A solution that contains more solute than the maximum amount at a certain temperature is known as a supersaturated solution.