Question:
$ 35.4\,\,mL $ of $ HCl $ is required for the neutralization of a solution containing $0.275 \,g$ of sodium hydroxide. The normality of hydrochloric add is?
$ 35.4\,\,mL $ of $ HCl $ is required for the neutralization of a solution containing $0.275 \,g$ of sodium hydroxide. The normality of hydrochloric add is?
Updated On: Jun 23, 2023
- 0.97 N
- 0.142 N
- 0.194 N
- 0.244 N
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The Correct Option is C
Solution and Explanation
We know that $1 \,g$ equivalent weight of
$NaOH =40 \,g $
$\therefore 40 \,g$ of $ NaOH =1 \,g$ eq . of $ NaOH $
$\therefore 0.275\, g$ of $NaOH =\frac{1}{40} \times 0.275\, eq . $
$=\frac{1}{40} \times 0.275 \times 1000 $
$=6.88 \,meq $
$\therefore \underset{ (HCl)}{N_{1} V_{1}} = \underset{(NaOH)}{N_{2} V_{2}} $
$N_{1} \times 35.4 =6.88 (\because meq =N V) $
$N_{1} =0.194$
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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.