Gas Stoichionmetry1. What volume (in mL) of carbon dioxide forms when 525 milligrams of calcium carbonate reacts with excesshydrochloric acid? Assume that the carbon dioxide is formed at a pressure of 201 kPa and a temperature of 25°C.CaCO3(5) + HClaq) → CO,(g) + H,0,g) + CaClz{aq}[unbalanced equation]metalஅ

The volume of carbon dioxide is to be calculated when 525 milligrams of calcium carbonate reacts…

Answered: Gas Stoichionmetry 1. What volume (in…

Chemistry: The Molecular Science

5th Edition

ISBN:9781285199047

Author:John W. Moore, Conrad L. Stanitski

Publisher:John W. Moore, Conrad L. Stanitski

Chapter8: Properties Of Gases

Section: Chapter Questions

Problem 129QRT

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Some commercial drain cleaners use a mixture of sodium hydroxide and aluminum powder. When the solid mixture is poured into the drain and dissolves, a reaction ensues that produces hydrogen gas: 2NAOH(aq) + 2Al(s) + 6H20() - 2NAAI(OH)4(aq) + 3H2(g) Determine the pressure (in kPa) of hydrogen gas produced when 39.82 g of aluminum reacts with excess sodium hydroxide and water if the temperature is 38.17 C and the volume is 7.22 L. Provide your answer with TWO decimals.
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(References) An 18.6 mL volume of hydrochloric acid reacts completely with a solid sample of MgCO3. The reaction is 2HC1(aq)+MgCO,(s)CO2(9) + H,O(1) + MgCl, (aq) The volume of CO2 formed is 175 mL at 23°C and 731 mmHg. What is the molarity of the HCl solution? Molarity- Submit Answer Try Another Version 3 item attempts remaining pr pt
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n Unknown elemental metal was reacted with Hydrochloric Acid. It was determined that this reaction evolved Hydrogen gas and left the metal in solution in the 2+ oxidation state. The Unknown metal was then subjected to the same test as Magnesium in the “Molar Mass of Magnesium” lab. After some adjustments to get the volume of gas collected in the right range, the following results were obtained: Mass of Metal used = 0.3682 g P (atmospheric) = 761.1 mm Hg Temperature of gas = 21.6 degrees C Volume of gas collected = 67.5 ml Difference in height of solution levels in the buret and beaker = 163.0mm Vapour pressure of H20 at gas temperature = 19.349 mm Hg Some Constants: R = 0.0820575 L*Atm/mol/K = 62.3637 L*mmHg/mol/K dsolution = 1.00g/ml dHg = 13.6 g/ml From this data, calculate and report the molar mass of the unknown metal with correct significant figures and unit
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Stoichiometry with Partial Pressure Gas jar Gas collects here Trough of water Bee hive shelf Reaction mixture 2 KCIO, 3(s) + > 2 KCI (s), 30 2(g) A sample of KCIO3 is partially decomposed by heating, producing O2 gas that is collected safely over water. The volume of total gas collected is 2.50 x 10-4 m³ at 26 °C, giving 101.99 kPa total pressure. How many grams of KCIO3 were decomposed? What atom was oxidized? What atom was reduced? The pressure of water vapor at 26 °C is 25 torr. SHOW ALL WORK!

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