A non-volatile solute \( P \) is present in \( 500 \mathrm{~mL} \) solution and molarity is foun...
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A non-volatile solute \( P \) is present in \( 500 \mathrm{~mL} \) solution and molarity is found to be \( 1 \mathrm{M} \). A sample of \( 5 \mathrm{~mL} \) of this solution is taken in another container and further 0.4 \( g \) of \( \mathrm{P} \) is added and volume is increased by adding water such that final volume becomes \( 10 \mathrm{~L} \). If molarity of diluted solution is \( 10^{-3} \mathrm{M} \), the molar mass of solute \( \mathrm{P} \) (in \( \mathrm{g} / \mathrm{mol} \) ) is
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