Chemistry, 29.11.2021 23:40 briannaalvarado256

A 0.0727-g sample of an unknown metal (X) reacted with hydrochloric acid according to the following chemical equation: 2 X (s) + 6 HCl (aq) →2 XCl3 (aq) + 3 H2 (g) The volume of hydrogen gas collected over water was 99.0 mL at 22°C and 770 mm Hg. Calculate the atomic mass of the unknown metal and identify the metal from the periodic table.

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