Solve following questions and show all the steps.

1. calculate the ph of a 2.0x10-4 m solution of aniline hydrochoride, c6h5nh3cl.

2. for a solution of 50 mm sodium chloride and 100 mm magnesium acetate, determine the ionic strength and the average activity coefficient for the na+/cl- ions.

3. calculate the mean ionic activity coefficient of a solution that is 10 mm ca(no3)2 (aq) at 298k.

Ineed this now one scientist feels that the changes in global climatic patterns may be good for the health of the biosphere. another scientist feels that sharp changes in climatic patterns could result in the extinction of the biosphere. which of these is the most likely reason the two scientists gave conflicting opinions on the impact of changes in the global climatic pattern? they do not have enough knowledge on the topic. they did not discuss the issue among themselves. they believe conflicting opinion strengthens science. they study different areas of science and have different scientific focuses.