Chemistry help please???

0 ⤊

Chemistry help please???

What is the boiling point of a solution of 125.0 g of C6H12O6 in 350 g C2H5OH? Kb for C2H5OH is 1.19ºC/m and the boiling point of C2H5OH is 78ºC.

2007-02-08 03:08:19 · 2 answers · asked by MEB 2 in Science & Mathematics ➔ Chemistry

2 answers

mole of C6H12O6 = 125/(6*12+12*1+6*16) = 0.6944

molarity of C6H12O6 = m = 0.6944/0.35 = 1.984

delta Tb = m *Kb
= 1.984 * 1.19
= 2.361 C

Tb = 78 + 2.361
= 80.361 C

2007-02-08 03:43:11 · answer #1 · answered by Anonymous · 0⤊ 0⤋

79.6 C

2007-02-08 12:04:06 · answer #2 · answered by ag_iitkgp 7 · 0⤊ 0⤋