In an on-going experimental test campaign at the Maurice J Zucrow Laboratories, a pair of graduate students is evaluating new catalyst designs to decompose 90 weight percent (denoted as wt.\%) hydrogen peroxide, H2O2. Note that the "hydrogen peroxide" you can buy at the pharmacy is actually only 3 wt.\% hydrogen peroxide, with the bulk ( 97 wt.\%) being water. Here, we are using 90 wt. %H2O2 with 10 wt.\% water-quite a difference! Part of dealing with a new catalyst is figuring out which designs will work well with that catalyst. When a specific catalyst design does not work, it is best to drain the H2O2 tank and review the data before experimenting with a new design. In this problem, you will use the conditions and dimensions of the tank shown in Figure 1 and the mass weighted average density of 90wt%H2O2 to help the graduate students estimate the time, in seconds, needed to drain the last 5 liters of H2O2 from the tank. The time needed to drain the tank starts when a graduate student commands the remotely controlled drain valve to open. Be sure to note any assumptions that you make in your calculation, as well as why they are reasonable. Figure 1. Left: H2O2 (and fuel) tanks at the Zucrew Laboratories. Right: Simplified plumbing diagram. Dimensions not shown can be neglected. Notes: - The density of 100wt%H2O2 at 20C is 1.44g/mL - The velocity of the liquid exiting the tube is: v=2gh0 with h0, being the height of liquid inside the container