Question

1. Calculate hte freezing point of a 2.1 molality solution of iron(III) nitrate nonahydrate

2. Do trans isomers have no free-rotation? Why

3. The initial concentratio of N2O4 is 1.0M. The system is heater and allowed to reach equilibrium. At equilibirum concentration of NO2 is 0.12M. Calculate the equilibirum constant for the reaction: N2O4 <=>2NO2

4. What is an amphiprotic species? Describe why aluminum hydroxide precipitate can redissolve into solution if the pH of the solution in changed

Answer 1