1. Calculate the concentrations of the chemicals below in units of mass per volume and units of ppm. Give your answers in the most appropriate units (for example, g/L,mg/L, or g/L depending upon the magnitude of your answer). a. 4106MPbCO3 (as long as it stays solid, can keep lead out of water) c. 0.070NCa(OH)2 (formed during softening in water treatment) d. 3.50103NNaOCl (bleach, used for disinfection) 2. What is the pH,pOH, and hydroxide concentration of a water at 25C that contains 0.005N of nitric acid? Assume equilibrium has been achieved. Neglect the dissociation of water