Determine the amount of CaCl₂ (i = 2.47) dissolved in 2.5 litre of water such j that its osmotic pressure is 0.75 atm at 27° C.
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3
Answer:
3.51315g
Explanation:
Refer to the material.
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Answer:
Amount of calcium chloride is 3.34 gm.
Explanation:
Since we know that
...............................(1)
Where i = vant hoff factor
i = 2.47, V=2.5 litre, T=27+273=300 k, R = 8.314, Osmotic pressure = 0.75 x 101325 pascal.
Molar mass of calcium chloride = 40 + 35 x 2 = 110
Using (1) we get
After solving this we get
Mass = 3.34 gm.
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