Question

250 mL of Na2CO3solution contains 2.65 g of Na2CO3. 10 mL of this solution is added to x mL of water to
obtain 0.001 M NA2CO3 solution. The value of x is... (Molecular mass of Na2CO3 = 106 amu)
(1) 1000
(2)990
(3) 9990
(4)90
​

Answer 1

990 is right answer

thanks

Answer 2

Answer:

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