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Chemistry
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Some Basic concepts in Chemistry
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The density of $3M$ solution of $Na_2S_2O_3$ is $1.25$ $g mL^{−1}$. Calculate the mole fraction of $Na_2S_2O_3$.
$(a)\;0.65\qquad(b)\;0.78\qquad(c)\;0.07\qquad(d)\;0.065$
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