(Solved): 2. Perform the following concentration conversion calculations: (a) (4) A swimming pool require ...

2. Perform the following concentration conversion calculations: (a) (4) A swimming pool requires a chlorine $$\left({\mathrm{Cl}}_2\right)$$ residual of $$2.0\mathrm{ppm}$$ (on a mass basis) to discourage the growth of bacteria. If the pool contains $$2,500,000\mathrm{L}$$, what mass of chlorine must be added to obtain the desired chlorine level? (b) (6) The air quality index in Beijing last year recorded average ozone $$\left({\mathrm{O}}_3\right)$$ levels of $$110\mathrm{ppb}$$ (on a mol basis). Does this exceed Canada's acceptable 24 hour National Ambient Air Quality Objective (NAAQO) of $$50?\mathrm{g}/{\mathrm{m}}^3$$ ? Assume the average molar mass of air is $$29.0\mathrm{g}/\mathrm{mol}$$ and its density is $$1.225\mathrm{kg}/{\mathrm{m}}^3$$.