Question:
$200\, mL$ of water is added to a $500\, mL$ of $0.2 \,M$ solution. What is the molarity of this diluted solution?
$200\, mL$ of water is added to a $500\, mL$ of $0.2 \,M$ solution. What is the molarity of this diluted solution?
Updated On: Dec 8, 2024
- $0.5010\, M$
- $0.2897\, M$
- $0.7093 \,M$
- $0.1428\, M$
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The Correct Option is D
Solution and Explanation
Thecorrect option is( D): 0.1428M.
0.2 molar solution, ie, 1000 mL solution contains 0.2 mol solute.
\(\therefore\) 500 mL solution contains 0.1 mol solute thus, 700 mL solution contain
\(\frac{0.1}{500}\times 700=0.1428\text{ }mol\)
\(\therefore\) Molarity of solution =0.1428 M.
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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.