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Answer to Question #60750 in Physical Chemistry for Sanjukta Ghosh
Question #60750
What is the molality of this solution?
A dilute soln is prepared by dissolving W2 g of a non-volatile and non-electrolyte solute (M.wt.=M2) in W1 g of a solvent (M.wt=M1). What is the concentration of solute in molality?
In W1 g of solvent, no.of moles of solute present is W2/M2 moles
In 1 g of solvent, no. of moles of solute present is W2/(M2 x W1) moles
In 1000g of solvent, no. of moles of solute present is W2 x 1000/ (M2 x W1) moles = say n
So, is Molality= no. of moles of solute/ 1000g of solvent
= n/1000 ?
A dilute soln is prepared by dissolving W2 g of a non-volatile and non-electrolyte solute (M.wt.=M2) in W1 g of a solvent (M.wt=M1). What is the concentration of solute in molality?
In W1 g of solvent, no.of moles of solute present is W2/M2 moles
In 1 g of solvent, no. of moles of solute present is W2/(M2 x W1) moles
In 1000g of solvent, no. of moles of solute present is W2 x 1000/ (M2 x W1) moles = say n
So, is Molality= no. of moles of solute/ 1000g of solvent
= n/1000 ?
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