Question

4.5NaCl aqueous solution is isotonic with.....% W/V aqueous solution of urea. (Molar mass of urea =60g mol^(-1) )​

Answer 1

Answer:

27%

Explanation:

To be isotonic the concentration ( no of moles per volume) should be same .

there the solution should have 4.5 moles of urea in 1000 ml or we can say 0.45 moles in 100 ml

This means that there should be 0.45 moles or 0.45 × 60 = 27 gm of urea in 100 ml.

so percentage w/v = 27 %

Hope it helps. Plz mark as branliest answer

Answer 2

Answer:

27%w/v aqueous solution of urea.