Author Question: 4.173 g of an organic compound (non-electrolyte) lowered the freezing point of 100.0 g of ... (Read 263 times)

vicky · **on:** Aug 27, 2018

4.173 g of an organic compound (non-electrolyte) lowered the freezing point of 100.0 g of nitrobenzene by 2.6 C. If the Kf of nitrobenzene is 8.1 C kg solvent/mol solute, the molecular mass of the non-electrolyte is ________.

A) 260
B) 195
C) 65
D) 130

Question 2

In reactions to form ionic compounds, metals generally

A) lose electrons.
B) gain electrons.
C) become non-metals.
D) do not react.