Some metals will react with hydrochloric acid to liberate hydrogen gas. The general equation for this reaction is: 2 M(s) + 2x HCl(aq) → 2 MCIy(aq) + x H2(9), where x = 1, 2, or 3. In an experiment to determine the molar mass, and therefore the identity, of a reactive metal, a 0.408 g sample of the metal was combined with an excess of 2.0 M HCl(aq). All of the metal was consumed and the hydrogen gas was collected at a pressure of 760 mmHg in a 150 mL vessel at a temperature of 20 °C. If x = 2, what is the metal? (R = 0.08206 atm-L/mol-K; 0 °C = 273 K; 1 atm = 760 mmHg). Give the full name of the element (all letters lower case).
Some metals will react with hydrochloric acid to liberate hydrogen gas. The general equation for this reaction is: 2 M(s) + 2x HCl(aq) → 2 MCIy(aq) + x H2(9), where x = 1, 2, or 3. In an experiment to determine the molar mass, and therefore the identity, of a reactive metal, a 0.408 g sample of the metal was combined with an excess of 2.0 M HCl(aq). All of the metal was consumed and the hydrogen gas was collected at a pressure of 760 mmHg in a 150 mL vessel at a temperature of 20 °C. If x = 2, what is the metal? (R = 0.08206 atm-L/mol-K; 0 °C = 273 K; 1 atm = 760 mmHg). Give the full name of the element (all letters lower case).
Chemistry: The Molecular Science
5th Edition
ISBN:9781285199047
Author:John W. Moore, Conrad L. Stanitski
Publisher:John W. Moore, Conrad L. Stanitski
Chapter3: Chemical Reactions
Section: Chapter Questions
Problem 107QRT
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Transcribed Image Text:Some metals will react with hydrochloric acid to liberate hydrogen gas. The general equation for this reaction is: 2 M(s) + 2x HCl(aq) → 2 MCIx(aq) + x H2(g), where x = 1, 2, or
3. In an experiment to determine the molar mass, and therefore the identity, of a reactive metal, a 0.408 g sample of the metal was combined with an excess of 2.0 M
HCl(aq). All of the metal was consumed and the hydrogen gas was collected at a pressure of 760 mmHg in a 150 mL vessel at a temperature of 20 °C. If x = 2, what is the
metal? (R = 0.08206 atm-L/mol·K; 0 °C = 273 K; 1 atm = 760 mmHg). Give the full name of the element (all letters lower case).
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