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High phosphate levels in water systems may contribute to several environmental problems. One method to gather data for this determination would be to perform a gravimetric analysis to determine the level of phosphorus (P) in an aqueous sample by converting it to P2O7. A 25.00 gram sample of unknown water was acidified, properly treated with a precipitating agent and, when heated, showed the sample to contain 6.06% P. How many grams of P2O7 would have to be precipitated for this result?
P = 30.9738 g/mol; P2O7 = 173.94 g/mol
Calculate the heat release when 62.0 g of steam at 129 C is converted to water at 50 C. Assume that the specific heat of water is 4.184 J/g x C
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When measuring the boiling point of a compound, why is the micro boiling point determined at the point when the last bubble has left the bottom of the bell and the liquid begins to rise in the bell
You then take a 10.00 mL sample of the dilute acid solution and titrate it with the standard solution. You need 10.67 mL of the standard solution to reach the endpoint. What is the concentration of the original acid solution
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