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# What is the mass, in milligrams, of mercury in 1.00 kg lake

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What is the mass, in milligrams, of mercury in 1.00 kg lake trout that just meets the Northern American standard of 0.50 ppm Hg?

What mass of fish, at the 0.50-ppm level, would you have to eat to ingest a total of 100 mg of mercury?

https://brainmass.com/chemistry/environmental-chemistry/mass-milligrams-mercury-lake-106844

#### Solution Preview

Here ppm refers to part per million or in terms of mass 1ppm = 1 mg per 1 kg.

With ...

#### Solution Summary

The solution provides calculations and explanations for the problem. The mass of mercury for the Northern American standard Hg are determined.

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indicates 1 molecule of HNO3 contains_____________atom(s) of N
and___________ atom(s) of O and a total of_____________atom(s). This
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8. The formula weight (molecular weight) of nitric acid
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10. The mercury concentration in a polluted lake is 0.0125*10 neg 6 mg/L, what is the total mass in kilograms of mercury in the lake is approximately circular with a diameter (d) of 10 miles and average depth (h) of 50 ft? Note that the volume is calculated as follows: V=3.142*(d/2)2*h.

Useful conversion factors: 1000 g=1kg; 1000 mg=1 g
5280 feet=1 mile; 28.317 (L) liters=1 cubic feet

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