You just injected $2\mathrm{.}0ml$ of $S{O}_2$ gas into a container that is $1m*1m**1m.$ You then used a Sensidyne direct reading tube to collect a sample and make a measurement. In class, we discussed the accuracy of detector tubes. The accuracy of a detector tube is only $+-25\%$ at $1-5$ times TLV$,$ or $+-35\%$ at $\frac{1}{2}$ the TLV$.$ The TLV for $S{O}_2$ is $2ppm.$

a$)$ Calculate the concentration of $S{O}_2$ in the container in $ppm.$

b$)$ When you read the Sensidyne tube, you determined the concentration of $S{O}_2$ in the container was $2\mathrm{.}5ppm.$ Present your sample result as a range of concentrations, taking into account the accuracy of your tube.

c$)$ How did your calculated concentration of $S{O}_2$ compare to your measured concentration? $($Was the measured concentration higher, lower, or you can not tell?$)$

You just injected $2\mathrm{.}0ml$ of acetone into a container that is $1mx1m1m.$ You then used a Sensidyne direct reading tube to collect a sample and make a measurement. The accuracy of a detector tube is only $+-25\%$ at $1-5$ times TLV$,$ or $+-35\%$ at $\frac{1}{2}$ the TLV$.$ The TLV for acetone is $500ppm,$ the SG is $0\mathrm{.}79$ and the MW is $58\mathrm{.}1.$

a$)$ Calculate the concentration of acetone in the container in ppm$.$

b$)$ When you read the Sensidyne tube, you determined the concentration of acetone in the container was $500ppm.$ Present your sample result as a range of concentrations, taking into account the accuracy of your tube.

c$)$ How did your calculated concentration of acetone compare to your measured concentration? $($Was the measured concentration higher, lower, or you can not tell?$)$