Chemistry, asked by shaikmohaseen, 1 year ago

the osmotic pressure of a 5%,solution at 27°c is 12 atm, then what is molecular weight of that compound? (r=0.08 lit. atm. mol-1.c-1)


shaikmohaseen: a) 100
shaikmohaseen: b) 200
shaikmohaseen: c) 300
shaikmohaseen: d) 400

Answers

Answered by amantiwari883oy6f76
2
the answer is 105.2631 gm
take vol. of sol. as 95 ml

shaikmohaseen: a) 100
shaikmohaseen: b) 200
shaikmohaseen: c) 300
shaikmohaseen: d) 400
shaikmohaseen: how is it
amantiwari883oy6f76: you can take 105.2631 approx. as 100
amantiwari883oy6f76: they take the closest answer
amantiwari883oy6f76: if you take vol. of sol. as 100ml then answer will come as 100
shaikmohaseen: 5/12×1000/100×0.08×300
amantiwari883oy6f76: yup
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