10. Hydrogen gas can be produced from the reaction of calcium hydride and water.CaH2 (s) + 2 H2O (1) 2 H2(g) + Ca(OH)2(aq)How many grams of calcium hydride are needed to produce 2.5 L of hydrogen gas, collected over waterat 26 °C and 760. torr total pressure?

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Answered: 10. Hydrogen gas can be produced from…

Chemistry

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ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

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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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The Haber Process synthesizes ammonia at elevated temperatures and pressures. Suppose you combine 1580 L of nitrogen gas and 4590 L of hydrogen gas at STP, heat the mixture to run the reaction, then isolate the ammonia from the reaction mixture. What volume of NH₃ , measured at STP, would be produced? Assume the reaction goes to completion. N₂ (g) + 3 H₂ (g) → 2 NH₃ (g)
A piece of sodium metal reacts completely with water as follows: 2Na(s) + 2H,0(1) → 2NAOH(aq)+H2(g) The hydrogen gas generated is collected over water at 27.0°C. The volume of the gas is 177 mL measured at 0.977 atm. Calculate the number of grams of sodium used in the reaction. (The vapor pressure of water at 27.0°C = 0.0352 atm.)
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15. Il prodotto che si ottiene quando la seguente molecola reagisce con HBr (solvente CCl4) è: CH₂0 (a) CH₂0 0) C11,9 CH-CH CH-CH- си-сил Br CHO CHO CHO (c) CH₂0- (d) CH₂0- -CH-CH IT Br Br CBr-CBr -CHO -CHO
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Small amounts of oxygen can be generated by the thermal decomposition of KClO 3; 2 KClO 3(s) ↔ 2 KCl(s) + 3 O 2(g) A sample of KClO 3 was decomposed and oxygen collected over water at 26.00 °C (Vapor pressure = 25.21 torr). How many grams of KClO 3 decomposed if 1.032 L of gas were collected at 693.6 torr?
Please answer questions 1-3 Please refer to the picture below:
73. A 500.-mL sample of O2 gas at 24 °C was prepared by decomposing a 3% aqueous solution of hydrogen peroxide, H2 O2, in the presence of a small amount of manganese catalyst by the reaction 2H2 O2 (aq) → 2H2O (g) + The oxygen thus prepared was collected by displacement of water. The total pressure of gas collected was 755 mm Hg. What is the partial pressure of O2 in the mixture? How many moles of O2 are in the mixture? (The vapor pressure of water at 24 °C is 23 mm Hg.)
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10. Hydrogen gas can be produced from the reaction of calcium hydride and water. CaH2 (s) + 2 H2O (1) 2 H2(g) + Ca(OH)2(aq) How many grams of calcium hydride are needed to produce 2.5 L of hydrogen gas, collected over water at 26 °C and 760. torr total pressure?