Answer:
a. Molarity= 
b. Molality= 
Explanation:
Hello,
In this case, given the information about the aniline, whose molar mass is 93g/mol, one could assume the volume of the solution is just 200 mL (0.200 L) as no volume change is observed when mixing, therefore, the molarity results:

Moreover, the molality:

Best regards.
2.a)R b)R c)L d)L e)R f)L g)L
It has a negative charge emits energy when it moves to a lower energy orbit from an excited state and it has the same mass as a proton