Lessons

Eamcet Chemistry
2 nd Year : Unit 2.1 ( Solutions ) - Solution 1

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Q.

250 ml of Na2CO3 solution contains 2.65g of Na2CO3. 10 ml of this solution is added to xml of water to obtain 0.001M Na2CO3 solution. The value of x in ml

View Answer

Correct choice: B

Explanation:

M1 = 2.65 × 1000/106 × 250 = 0.1
Volume of water added i.e x = V1 (M1- M2)/ M2
= 10 (0.1 - 0.001)/0.001 = 990 ml
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