Question

90 gram glucose (C6H12O6)and 30 gram urea (NH2CONH2) are dissolved in 162 gram water what will the mole fraction of glucose

Answer 1

mole fraction of glucose=
no. of moles glucose/no.moles of glucose+ no.moles of urea

no. moles of glucose= w/mw
                                  =90/180 (molar mass of glucose=180)
                                  =0.5

no. moles of urea= 30/60(molar mass of urea=60)
                             =0.5

therefore,
mole fraction of glucose= 0.5/0.5+0.5
                                      =0.5

Answer 2

Explanation:

0.5 ........................