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Grade 11Organic Chemistry

a solution of glucose in water is labelled as10%w/w.what wouldbe the molarity of the solution?

Profile image of malothu sushma
9 Years agoGrade 11
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1 Answer

Profile image of Vikas TU
9 Years ago
10% w/w means 10 gm of solute is present in 100 gms of the soln.
moles of solute that is mole sof glucose => 10/180 => 1/18.
Volume of soln. = mass of soln. / density of soln. => 100/d
where d is the density of the soln. as it should be mentioned in the qstn. other wose take d = 1g/ml as for water solvent.
Hence,
Molarity of soln. = (1/18)*1000/100 => 10/18 => 5/9 => 0.55 M

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