Chemistry, asked by dhakka7952, 1 year ago

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.

Answers

Answered by deependra1806hu
3

Answer:

3.51315g

Explanation:

Refer to the material.

Attachments:
Answered by shailendrachoubay456
0

Answer:

Amount of calcium chloride is 3.34 gm.

Explanation:

Since we know that

\pi V =inRT...............................(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

0.75\times2.5 = 2.47\times 8.314\times300\times \dfrac{Mass}{110}

After solving this we get

Mass = 3.34 gm.

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