Question

6 grams of Urea is dissolved in 90 grams of water the mole fraction of solvent is molecular weight of urea is equals to 60option by 5 option b 1 by 50 option C 151 option 415501 ​

Answer 1

mass of urea=6g

molar mass if urea=60

moles of urea=6/60=0.1

mass of water=90 g

molar mass=18

moles of water=90/18=5

mole fraction of water

= moles of water/total moles

total moles= 5+0.1=5.1

=5/5.1

=0.98

I hope this helps ( ╹▽╹ )