Question

100ml of 1g sample of a drug having compound C21H23O5N as drug is coated with sugar lactose exerts osmotic of 0.8 atm at 27°c. what is thr drug percentage in the sample​

Answer 1

Answer:

62%

Explanation:

Consider that a and g be the amount of drug having molecular weight =369 and sugar having molecular weight 342 respectively.

Now we are given that;

a+b=1.0 …(1)

According to gas equation

PV=(n1+n2)RT

0.80 × (100 /1000) = [a / 369 + b/342]×0.0821×300

342a+369b=358.66 …(2)

Solving eq 1 and eq2 we get

a=0.617g

b=0.383g

Hence the percentage of drug would be 0.6171×100 = 62%

Answer 2

Answer:

a plus b the whole square Android + 1 is equal to hundred and 18. Is equal to 27 is 19 + 2