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1. A platinum (II) compound , which is used to treat tumors, contains 65.0% Pt., 23.6% Cl, 9.35% N, and 2.05% H by mass. Calculate its empirical formula.

1. A platinum (II) compound , which is used to treat tumors, contains 65.0% Pt., 23.6% Cl, 9.35% N, and 2.05% H by mass. Calculate its empirical formula.

Chemistry
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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I.       Solve the following problems: Show your solutions.

II. Solve the following problems: Show your solutions. 1. A platinum (II) compound , which is used to treat tumors, contains 65.0% Pt., 23.6% Cl, 9.35% N, and 2.05% H by mass. Calculate its empirical formula. 2. Nitrogen gas reacts with hydrogen gas to produce ammonia, as shown in the following equation: + 3H2 (8) 2ΝH, 3 (g) How many grams of H, are needed to react with 2.5 moles of N,? 3. During the combustion, ethane (C,H,) reacts with O, to produce CO, and H,O.How many grams of O, are needed to react with 250 g of ethane? 2C,Н, + 4CO2 4. Nitrogen gas can be prepared by passing gaseous ammonia over solid copper (II) oxide at high temperature. The other products of the reaction are solid copper and 70, 6 H,O
Transcribed Image Text:II. Solve the following problems: Show your solutions. 1. A platinum (II) compound , which is used to treat tumors, contains 65.0% Pt., 23.6% Cl, 9.35% N, and 2.05% H by mass. Calculate its empirical formula. 2. Nitrogen gas reacts with hydrogen gas to produce ammonia, as shown in the following equation: + 3H2 (8) 2ΝH, 3 (g) How many grams of H, are needed to react with 2.5 moles of N,? 3. During the combustion, ethane (C,H,) reacts with O, to produce CO, and H,O.How many grams of O, are needed to react with 250 g of ethane? 2C,Н, + 4CO2 4. Nitrogen gas can be prepared by passing gaseous ammonia over solid copper (II) oxide at high temperature. The other products of the reaction are solid copper and 70, 6 H,O
Page 2 of water vapor. If a sample containing 18.1 g of NH, is reacted with 90.4 g of CuO., which is the limiting reagent. 2NH3(g) N, (g) + 3Cu (s) +3 H,O (g) + 3Cuo 5. In a hospital respiratory unit, the gauge on a 10.0 L tank of compressed oxygen reads 4 500 mm Hg. How many liters of oxygen can you get from the tank at a pressure of 750 mm Hg? 6. A sample of methane gas (Ch) has a volume of 125 mL at 0.600 atm pressure and 25°C. How many milliters will it occupy at a pressure of 1.50 atm and 25°C? 7. What is the total pressure in atmospheres of a gas mixture containing argon gas at 0.28 atm, helium at 280 mm Hg, and nitrogen gas at 390 torr? 8. A 1.5 g sample of KCIO, was heated. The liberated oxygen was collected over waterat 23°C and 750 mm Hg. What was the volume of the gas collected ? Water vapor pressure = 21.1 mm Hg).
Transcribed Image Text:Page 2 of water vapor. If a sample containing 18.1 g of NH, is reacted with 90.4 g of CuO., which is the limiting reagent. 2NH3(g) N, (g) + 3Cu (s) +3 H,O (g) + 3Cuo 5. In a hospital respiratory unit, the gauge on a 10.0 L tank of compressed oxygen reads 4 500 mm Hg. How many liters of oxygen can you get from the tank at a pressure of 750 mm Hg? 6. A sample of methane gas (Ch) has a volume of 125 mL at 0.600 atm pressure and 25°C. How many milliters will it occupy at a pressure of 1.50 atm and 25°C? 7. What is the total pressure in atmospheres of a gas mixture containing argon gas at 0.28 atm, helium at 280 mm Hg, and nitrogen gas at 390 torr? 8. A 1.5 g sample of KCIO, was heated. The liberated oxygen was collected over waterat 23°C and 750 mm Hg. What was the volume of the gas collected ? Water vapor pressure = 21.1 mm Hg).
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