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The level of mercury in a stream was suspected to be above the minimum considered safe (1 part per billion by weight). An analysis indicated that the concentration was 0.68 parts per billion. Assume a density of 1.0 g/mL and calculate the molarity of mercury in the stream.

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The level of mercury in a stream was suspected to be above the minimum considered safe (1 part per billion by weight). An analysis indicated that the concentration was 0.68 parts per billion. Assume a density of 1.0 g/mL and calculate the molarity of mercury in the stream.

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Step 1

The mass and moles of mercur...

Mass of mercury present in the stream = 0.68 ppb
0.68x106g
Number of moles=0.68x10-°g
200g/mo
-8
0.34x10mol
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Mass of mercury present in the stream = 0.68 ppb 0.68x106g Number of moles=0.68x10-°g 200g/mo -8 0.34x10mol

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