osmotic pressure of solution containing 0.6g urea and 3.42g sugar in 100ml at 25°C is.
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Use the Vant Hoff eqn for osmotic press II
II = iMRT
M = molarity ; T in Kelvin; R gas constant.
Calc molarity :
Conc. urea is 0.6 in 100 = 6 in 1 Litre. Mol wt urea = 60 so it is 0.1 molar.
Do same for sugar (sucrose m.wt. 342) = 0.1 molar.
Combined modularity = 0.2 =M
The van't hoff factor i can be assumed as = 1 for dilute solutions.
So, II =0.2 x 0.082 x 300 = 4.92atm
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II = iMRT
M = molarity ; T in Kelvin; R gas constant.
Calc molarity :
Conc. urea is 0.6 in 100 = 6 in 1 Litre. Mol wt urea = 60 so it is 0.1 molar.
Do same for sugar (sucrose m.wt. 342) = 0.1 molar.
Combined modularity = 0.2 =M
The van't hoff factor i can be assumed as = 1 for dilute solutions.
So, II =0.2 x 0.082 x 300 = 4.92atm
Please Mark as Brainliest.
shreyaitu:
Hey!! One doubt clicked. Plz help me with this.
100 ml is given so this should be converted into L right?? So the ans should've been 49.2 instead of 4.92.
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