Assignment # $1$

The proposed air quality standard for ozone $(O_3)$ is $0\mathrm{.}08ppm.$

a$)$ Express that standard in $p\frac{g}{m}3$ at $1$atm of pressure and $25C.$

b$)$ At the elevation of Denver, the pressure is about $0\mathrm{.}82$atm. Express the ozone standard at that pressure and at a temperature of $15C.$

$2$Suppose the exhaust gas from an automobile contains $1\mathrm{.}0$ percent by volume of carbon monoxide. Express this concentration in $m\frac{g}{m^3}$ at $25C$ and $1$atm.

Suppose the average concentration of $S{O}_2$ is measured to be $400\frac{g}{m^3}$ at $25C$ and $1$ atm. Does this exceed the $(24-$hr$)$ air quality standard of $0\mathrm{.}14ppm?$

If we approximate the atmosphere to be $79$ percent nitrogen $(N_2)$ by volume and $21$ percent oxygen $(O_2),$ estimate the density of air $(k\frac{g}{m^3})$ at STP conditions $(0C,1(atm)).$