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

What is the overall order of reaction for rate = k[no2]2 ? second order 3/2 order third order zero order none of the listed answers are correct

Summarize possible ways in which phases of matter could combine to form a solution.

Look at the spectrums of a star moving towards earth and a motionless star. which of these is a correct inference that can be draw from the observation of the two spectrums? (2 points) the spectrum of a motionless star is difficult to be viewed separately using oridinary telescopes. the spectrum of a motionless star is identical to the spectrum of a star which moves towards earth. the spectrum of a star shifts towards the red region when the star moves towards earth. the spectrum of a star shifts towards the blue region when the star moves towards earth.