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2015-02-13T13:25:10+05:30

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Molarity = number of mole of solute/volume of solvent in liters
0.25 = number of mole of methanol/2.5
no. of mole of methanol = 0.25×2.5 = 0.625 mole
weight of methanol = no. of mole of methanol×molecular weight of methanol
                            = 0.625×32
                            = 20 gram
weight of methanol = 20/1000 kg
volume = weight of methanol/density
           = (20/1000)/0.793
           = 20/793
           = 0.025liter
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