Question

a solution of urea in water is 6% by weight calculate amount of mole fraction of urea solution​

Answer 1

Answer:

Explanation:

Molar Mass of Urea is 60 and water is 18,

6% by means 6 gm urea in 100 gm of solvent

mole of urea=  mass in gram /molar mass

6/60= .1mol

mole of water = 100/18=5.5

mole fraction of urea= moles of urea/moles of urea+ moles of water

.1/.1+5.5= .017

Answer 2

mole of urea = 6 = I mole 60

mole of urea = 6 = I mole 60mole of water = 100 18 Acc 5.5mot

mole of urea = 6 = I mole 60mole of water = 100 18 Acc 5.5motmole fraction of urea = $1 =0.16

mole of urea = 6 = I mole 60mole of water = 100 18 Acc 5.5motmole fraction of urea = $1 =0.16mole fractiof water = 5,5" = 0.84

mole of urea = 6 = I mole 60mole of water = 100 18 Acc 5.5motmole fraction of urea = $1 =0.16mole fractiof water = 5,5" = 0.8466513