Individual.docweek3

Individual.docweek3 - Individual Text Exercises, Part III...

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Individual Text Exercises, Part III Prepare written answers to the following assignments from Introductory Chemistry: Exercise 134 in Ch. 13 Exercise 126 in Ch. 14 Exercise 112 in Ch. 15 Exercise 112 in Ch. 16 Exercise 134 in Ch. 13 Water softeners often replace calcium ions in hard water with sodium ions. Since sodium compounds are soluble, the presence of sodium ions in water does not cause the white, scaly residues caused by calcium ions. However, calcium is more beneficial to human health than sodium. Calcium is a necessary part of the human diet, while high levels of sodium intake are linked to increases in blood pressure. The Food and Drug Administration (FDA) recommends that adults ingest less than 2.4 g of sodium per day. How many liters of softened water, containing a sodium concentration of 0.050% sodium by mass, have to be consumed to exceed the FDA recommendation? (Assume a density of 1.0 g>mL for water.) with the density of 1 g / ml for the water, 4800 grams of H2O = 4800 ml of H2O
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Individual.docweek3 - Individual Text Exercises, Part III...

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