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Some Basic Concepts Of Chemistry

Question
CBSEENCH11005100
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A solution is prepared by dissolving 5.3g of Na2CO3 in distilled water to give 500 mL of solution. Calculate the molarity of the solution.

Solution
Moles of Na2CO3
equals space fraction numerator Wt. space of space sodium space carbonate over denominator Molecular space mass space of space Na subscript 2 CO subscript 3 end fraction space equals space fraction numerator 5.3 over denominator 106 end fraction space space space space Volume space of space solution space equals space 500 space mL Molarity space equals space fraction numerator 5.3 over denominator 106 space cross times space 500 end fraction cross times 1000 space equals space 0.1 space straight M.

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