2. A0.136 g sample of an unknown metal (X) reacted with excess hydrochloric acid according to the following balanced chemical reaction: 2 X(s) + 6 HC(aq) → 2 XCl(aq) + 3 H.g) The volume of hydrogen gas collected over water was 90.5 mL at 20°C and a barometric pressure of 756 mmHg. Determine the atomic mass of the unknown metal. Use the Periodic Table of clements to identify the metal.

2. A0.136 g sample of an unknown metal (X) reacted with excess hydrochloric acid according to the following balanced chemical reaction: 2 X(s) + 6 HC(aq) → 2 XCl(aq) + 3 H.g) The volume of hydrogen gas collected over water was 90.5 mL at 20°C and a barometric pressure of 756 mmHg. Determine the atomic mass of the unknown metal. Use the Periodic Table of clements to identify the metal.

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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