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250mL  of sodium carbonate solution contains 2.65g of Na2CO3. If 10mL of this solution is diluted to 500mL, the concentration of the diluted acid will be
  • a)
    0.01 M
  • b)
    0.001 M
  • c)
    0.05 M
  • d)
    0.002 M
Correct answer is option 'D'. Can you explain this answer?
Verified Answer
250mL of sodium carbonate solution contains 2.65g of Na2CO3. If 10mL o...
Molarity of Na2CO3 solution
= 2.65/106 × 1000/250 = 0.1 M
10mL of this solution is diluted to 500mL
M1V1 = M2V2 
0.1 × 10 = M2 × 500
⇒ M2 = 0.002M
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Most Upvoted Answer
250mL of sodium carbonate solution contains 2.65g of Na2CO3. If 10mL o...
Calculation of Original Sodium Carbonate Solution Concentration:
- Given: 250mL of solution contains 2.65g of Na2CO3
- Calculate the molarity of the original solution:
- Molarity (M) = moles of solute / volume of solution in liters
- Moles of Na2CO3 = 2.65g / molar mass of Na2CO3
- Molar mass of Na2CO3 = 105.99 g/mol
- Moles of Na2CO3 = 2.65g / 105.99 g/mol = 0.025 mol
- Volume in liters = 250mL / 1000 = 0.25 L
- Molarity = 0.025 mol / 0.25 L = 0.1 M

Dilution Calculation:
- 10mL of the original solution is diluted to 500mL
- Calculate the final concentration of the diluted solution:
- Moles of Na2CO3 in 10mL = 0.1 M x 0.01 L = 0.001 mol
- Diluting to 500mL, moles remain the same
- Final molarity = 0.001 mol / 0.5 L = 0.002 M
Therefore, the final concentration of the diluted sodium carbonate solution is 0.002 M. The correct answer is option 'D'.
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250mL of sodium carbonate solution contains 2.65g of Na2CO3. If 10mL of this solution is diluted to 500mL, the concentration of the diluted acid will bea)0.01 Mb)0.001 Mc)0.05 Md)0.002 MCorrect answer is option 'D'. Can you explain this answer?
Question Description
250mL of sodium carbonate solution contains 2.65g of Na2CO3. If 10mL of this solution is diluted to 500mL, the concentration of the diluted acid will bea)0.01 Mb)0.001 Mc)0.05 Md)0.002 MCorrect answer is option 'D'. Can you explain this answer? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about 250mL of sodium carbonate solution contains 2.65g of Na2CO3. If 10mL of this solution is diluted to 500mL, the concentration of the diluted acid will bea)0.01 Mb)0.001 Mc)0.05 Md)0.002 MCorrect answer is option 'D'. Can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for 250mL of sodium carbonate solution contains 2.65g of Na2CO3. If 10mL of this solution is diluted to 500mL, the concentration of the diluted acid will bea)0.01 Mb)0.001 Mc)0.05 Md)0.002 MCorrect answer is option 'D'. Can you explain this answer?.
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