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My Notes Ask Your A solution is prepared by dissolving 26.8 g of ammonium sulfat

ID: 1078847 • Letter: M

Question

My Notes Ask Your A solution is prepared by dissolving 26.8 g of ammonium sulfate in enough water to make 100.0 mL of stock solution. A 12.20-mL sample of this stock solution is added to 50.80 mL of water. Calculate the concentration of ammonium ions and sulfate ions in the final solution H4 Need Help? Reatn Supporting Materials Periodic Table constants and Factors My Notes Ash The units of parts per million (ppm) and parts per billion (ppb) are commonly used by environmental chemists. In general, 1 ppm means 1 part of solute for every 106 parts of solution. (Both solute and solution are measured using the same units.) Mathematically, by mass, ppm can be expressed as shown below g solution kg solution In the case of very dilute aqueous solutions, a concentration of 1.0 ppm is equal to 1.0,g of solute per 1.0 mL of solution, which equals 1.0 g of solution. Parts per billion is defined in a similar fashion. Calculate the molarity of each of the following aqueous solutions (a) 4.2 ppb Hg in H20 (b) 3.0 ppb CHCI3 in H20 (c) 37.0 ppm As in H20 (d) 0.30 ppm DDT (C14HgCls) in H20 Need Help?Re

Explanation / Answer

My Notes Ask Your A solution is prepared by dissolving 26.8 g of ammonium sulfat

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