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A 0.2527-g sample of a mixture of Mg(OH)2 and Al(OH)3 was treated with 50.00 mL of 0.225 mol L 1 HCl(aq). The resulting solution required 13.73 mL of 0.176 mol L 1 NaOH(aq) to neutralize the excess, unreacted HCl.
What was the percentage by mass of Mg(OH)2 in the original sample? [Hint: When Mg(OH)2 or Al(OH)3 reacts with HCl(aq), the products are a chloride salt, water and CO2(g). Assume that all of the CO2(g) leaves the solution without reacting.]
How much ice (in grams) would have to melt to lower the temperature of 355 mL of water from 24 C to 6 C (Assume the density of water is 1.0g/ml.
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Tums, a drugstore remedy for acid indigestion, contains CaCO3. Write an equation for the reaction of Tums with gastric juice (HCl)
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Rex Ryan mixed peroxide with yeast to generate oxygen gas and collected the gas in a graduated cylinder, using the same set up as was used in Experiment 11. He collected the following data
A piece of metal, mass of 8.50 g is heated to a temperature of 95.00 c. It is immediately placed in a calorimeter. Find the specific heat capacity?
The yield of the reaction to form your chalcone is not quantitative. What side products might be formed from your aldol condensation?
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