A certain anesthetic contains 649 percent carbon 135

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8.A certain anesthetic contains 64.9 percent carbon, 13.5 percent hydrogen, and 21.6 percent oxygen by mass. At 120°C and 750 mmHg, 1.00 L of the gaseous compoundweighs 6.90 g. What is the molecular formula of the compound? (10 points)
9.What is the mass of the solid NH4Cl formed when 73.0 g of NH3(g) are mixed with an equal mass of gaseous HCl? What is the volume and identity of the gas remaining, measured at 14.0°C and 752 mmHg? (8 points)
Cl
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10. A mixture of gases contains 0.31 mol CH4, 0.25 mol C2H6,and 0.29 mol C3H8. The total pressure is 1.50 atm. Calculate the partial pressures of the gases. (8 points)
11. Propane (C3H8) burns in oxygen to produce carbon dioxide gas and water vapor. (a) Write a balanced equation for this reaction. (b) Calculate the number of liters of carbondioxide measured at STP (0c/1atm)that could be produced from 7.45 g of propane. (10points)
O
12. A 10.0 g piece of pure aluminum is placed in 75.0 mL of 0.54 M hydrochloric acid at STP condition. They react as follows:2Al + 6HCl 3H2(g) + 2AlClCalculate the following: a.Volume, in liters, of hydrogen gas. (5 points)3
2b.Molarity of Al+3. (Assume 75.0 mL solution.) (5 points)
c.Molarity of Cl. (Assume 75.0 mL solution.) (5 points)
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