How much water should be added to 20 gram urea to make 20% urea soluti

1.	How much water should be added to 20 gram urea to make 20% urea solution ?
Answer» Let the mass of the solution be 100gm So mass of urea is 20% of 100,so mass of urea is 20 gm So mass of water = 100 – 20 = 80gm So mass of urea by SOLVENT(water) = 20 X 100 ------- 80 = 25% so the answer is 25%

How much water should be added to 20 gram urea to make 20% urea solution ?

Answer»

Let the mass of the solution be 100gm

So mass of urea is 20% of 100,so mass of urea is 20 gm

So mass of water = 100 – 20

= 80gm

So mass of urea by SOLVENT(water) = 20 X 100

-------

= 25%

so the answer is 25%