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Chapter 3: Q3.25 CYL (page 162)
A 50.0-g sample of industrial wastewater was determined to contain 0.48 mg of mercury. Express the mercury concentration of the wastewater in ppm and ppb units.
9.6 ppm or 9600 ppb of mercury concentration in 50 g sample of industrial wastewater was determined
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What is the empirical formula of a compound if a sample contains 0.130 g of nitrogen and 0.370 g of oxygen?
Determine the mass in grams of each of the following:
(a) 0.600 mol of oxygen atoms
(b) 0.600 mol of oxygen molecules, O2
(c) 0.600 mol of ozone molecules, O3
A 24.81-g sample of a gaseous compound containing only carbon, oxygen, and chlorine is determined to contain 3.01 g C, 4.00 g O, and 17.81 g Cl. What is this compound’s percent composition?
Calculate the molarity of 6.52 g of CoCl2 (128.9 g/mol) dissolved in an aqueous solution with a total volume of 75.0 mL.
Question: Consider this question: What is the molarity of HCl if 35.23ml of a solution of HCl contain 0.3366g of HCl?
(a) Outline the steps necessary to answer the question.
(b) Answer the question.
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