marifer345 marifer345

24-08-2017
Physics

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A water holding tank measures 105 m long, 40m wide, and 11m deep. Traces of mercury have been found in the tank, with a concentration of 60mg/l. What is the total mass of mercury in the tank?

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andriansp andriansp

30-08-2017

Answer: 2772mg

To answer this question first you must know how much the water tank volume. The calculation would be:
Water tank V: 105m x 40m x 11m= 46200m3

After that, you need to convert the m3 into liter, then multiply it with mercury mass index. The calculation would be
Mercury mass: 46200m3 x 0.001 l/m3 x 60mg/l = 2772mg

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