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The molecular weight of H2O is 18g/mol.
Therefore, 27.9 g H2O / (1mol/18g) = 0.155 mol H2O
Calculating only for the latent heat, the heat required to be released for this amount of H2O to condense is:
40.7 kJ/mol (0.155 mol) = 6.3 kJ or -6.3 kJ since it is to be released
Boiling point of
glucose = 150°C
AlCl3 = 180°C
NaCl = 1,413°C
CaCl2 = 1,935°C
Therefore, the one with the lowest boililng point is glucose
