SATHEE: Some Basic Concepts Of Chemistry Question 62

Some Basic Concepts Of Chemistry Question 62

Question: 250 mL of a sodium carbonate solution contains 2.65 g of $N a_{2} C O_{3} .$ If 10 mL of this solution is diluted to one litre, what is the concentration of the resultant solution? (mol. wt. of $N a_{2} C O_{3} = 106$ )

Options:

A) 0.1 M

B) 0.01 M

C) 0.001 M

D) $10^{- 4} M$

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Answer:

Correct Answer: C

Solution:

[c] Molarity $\frac{W t \times 1000}{M W \times V} = \frac{2.65 \times 1000}{106 \times 250} = 0.1 M$ $M_{1} V_{1} = M_{2} V_{2}$
$∴ 10 \times 0.1 = 1000 \times M_{2} = 0.001 M$

Some Basic Concepts Of Chemistry Question 62

Question: 250 mL of a sodium carbonate solution contains 2.65 g of $N a_{2} C O_{3} .$ If 10 mL of this solution is diluted to one litre, what is the concentration of the resultant solution? (mol. wt. of $N a_{2} C O_{3} = 106$ )

Options:

Answer:

Solution:

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Some Basic Concepts Of Chemistry Question 62

Question: 250 mL of a sodium carbonate solution contains 2.65 g of Na2CO3. If 10 mL of this solution is diluted to one litre, what is the concentration of the resultant solution? (mol. wt. of Na2CO3=106 )

Options:

Answer:

Solution:

Engineering Preparation

Medical Preparation

NCERT Books & Solutions

Important Resources

Other Resources

Syllabus

Test Platform

Sample Mock Test

Mentorship

NCERT Exercise Video Solution

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Question: 250 mL of a sodium carbonate solution contains 2.65 g of $N a_{2} C O_{3} .$ If 10 mL of this solution is diluted to one litre, what is the concentration of the resultant solution? (mol. wt. of $N a_{2} C O_{3} = 106$ )