Suatu jenis sirop mengandung konsentrasi gulq 2m tentukan fraksi mol gula dalam sirop tsb
Jawaban Terkonfirmasi
Molalitas (m) gula = 2 m
Mr air = 18
X gula = ?
—
Molalitas (m) = mol gula / massa air (kg)
2 m = 2 mol gula / 1 kg air
Mol gula = 2 mol
Massa air = 1 kg = 1000 gr
Mol air = massa / Mr = 1000 / 18 = 55,56 mol
X gula = mol gula / (mol gula + mol air)
X gula = 2 / (2 + 55,56)
X gula = 0,0347