Question

Calculate the molar mass of your unknown using delta T between experimental fp of pure water and fp with ~0.10 g of unknown. All unknowns are assumed to have i=1 unless given otherwise during the lab.

Data

Initial Temp for Pure Water 23.4°C

Final Temp for Pure Water 0°C

Initial Temp for H2O + unknown (~0.10 g) 5.2°C

Final Temp for H2O + unknown (~0.10 g) -0.2°C

Mass of Water 20.0 g

Mass of Unknown 0.090 g

Answer 1

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