Calculate the approximate initial boiling point (in oC) of a solution of 285 g of
magnesium chloride in 2.0 kg of water. The kb of water is (0.52°C/m)

101

∘

C

Explanation:

The important thing to recognize here is that sodium chloride is an electrolyte, which means that it will dissociate in aqueous solution to give sodium cations,  

Na

+

, and chloride anions,  

Cl

−

NaCl

(aq]

→

Na

+

(aq]

+

Cl

−

(aq]

Explanation:

c. heat could easily travel through the molecules in the air and escape/enter the flask. removing the air slows down the heat transfer.  

indicate valleys, hills, steepness and gentleness of slopes.

explanation:

contour lines on a map indicate elevation, or depth. numeric notations on contour lines refer to the level of elevation, or height about sea level.