A 2000.0 gram sample of well water is found to contain 9.8X10 -2 g of arsenic. Express this concentration in parts per million.

elements

explanation:

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the complete reaction for the formation of aluminum oxide is as follows;

4al + 3 > 2

so if the molar mass of the is 32.0 g/mol and

so, to form 3.80 mol of

(3.80 mol ) x (3 mol ) x (32.0 g )

dividing by 2 because two moles of will be formed;

∴ 364.8/2   = 182.4g