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massa glukosa = 18 gram
Mr = 180
mol glukosa = massa/Mr
= 18/180 = 0,1 mol
massa air = 450 gram
Mr = 18
mol air = massa/Mr
= 450/18 = 25 mol
mol total = 25 + 0,1 = 25,1 mol
Tekanan uap jenuh air = 400 mmHg
ditanyakan = penurunan tekanan uap jenuh ?
jawaban =
penurunan tekanan uap = mol glukosa/mol total x 400 mmHg
= 0,1 / 25,1 x 400
= 1,6 mmHg
semoga dapat membantu yah kak
Xter = nb / (na + nb) nb = 18/180 = 0,1
= 0,1/ ( 25+0,1) na = 450/18 = 25
= 0,1 / 25,1
/\P = (0,1/25,1) × 400mmHg
= 40/25,1 = 1,59 mmHg