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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 andysis indicated that the concentration was 0.68 parts per billion. Assume a density of 1.0 $\mathrm{g} / \mathrm{mL}$ and calculate the molarity of mercury in the stream.
$3.4 \times 10^{-9} M$
06:39
Lyndsay R.
Chemistry 102
Chemistry 101
Chapter 3
Composition of Substances and Solutions
Solutions
Composition
Drexel University
University of Maryland - University College
Brown University
Lectures
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So the popularity of the solution is the number of moles of the solid present in one liter of solution. So what we have is the mall a massive mercury. And then we have the massive mercury present in this dream which is not 0.68 PPB. We need to convert that to grams so therefore we have the number of moles. It's equal to 96, 8 times 10-6g, divide that by 200 grams per mole. We get not .34 times 10 to the -8 moles, Divide that by one liter of solution. We got 9.34 times 10 to the -8 similarity, which is the morality of mercury in the stream. Yeah, yeah.
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