Which of the following atmospheric gases dissolves the most in water? Note, Henry’s law constant KH=X(aq)/X(g).

Why is the carbonate system so important in natural water systems?

Assign oxidation state of sulfur in H2S.

You conducted a norovirus decay experiment and obtained norovirus concentrations (c) with time (t) as follows. If you want to see if this decay follows a zero order kinetics model, what should be your x-axis and y-axis? Use the lecture note below if needed. Choose all that apply. Time (t) Norovirus concentration (c) 0 10000 20 100 50 30 100 15

If you decide to remove cadmium by a precipitation process, which is the best target mineral for minimizing cadmium ion concentration in water? Assume the pH will be adjusted to the optimal level.

Based on the norovirus data provide in the previous question, which of the following kinetics model describes the norovirus decay the best? 

Match reaction kinetics model and their units.

Match the same reaction kinetics models.

What is the reaction quotient (Q) for the reaction; H2CO3 = CO32- + 2H+

At pH 7, what is the dominant species of arsenite?