p.8698Experiment 10 Molar Mass of a Metal3. A piece of metal "X" weighing 0.0382 g was placed in a eudiometer containing diluteaqueous HCI. After the metal fully dissolved, 15.4 mL of hydrogen gas was collected bydisplacement of water and a 400 mm column of water was observed. The water temperaturewas 25°C and the barometric pressure was 758.8 mm Hg (torr). Assume the metal reactswith HCl asX (s) + 2 HCI (aq) → H2 (g) + XCI2 (aq)a) What is the vapor pressure of the water vapor in the column? (Consult Appendix E.)b) What is the pressure of the water column expressed in mm Hg (torr)? The density ofmercury is 13.6 g/mL.c) Calculate the pressure of the hydrogen gas above the water in the column.d) Calculate the volume occupied by the hydrogen gas at STP.e) How many moles of the metal were consumed in the reaction?f) What is the molar mass of the metal?

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3. A piece of metal "X" weighing 0.0382 g was placed in a eudiometer containing dilute aqueous HCI. After the metal fully dissolved, 15.4 mL of hydrogen gas was collected by displacement of water and a 400 mm column of water was observed. The water temperature was 25°C and the barometric pressure was 758.8 mm Hg (torr). Assume the metal reacts with HCl as X (s) + 2 HCI (aq) → H2 (g) + XCl, (aq) What is the vapor pressure of the water vapor in the column? (Consult Appendix E.) b) What is the pressure of the water column expressed in mm Hg (torr)? The density of mercury is 13.6 g/mL. c) Calculate the pressure of the hydrogen gas above the water in the column.

3. A piece of metal "X" weighing 0.0382 g was placed in a eudiometer containing dilute aqueous HCI. After the metal fully dissolved, 15.4 mL of hydrogen gas was collected by displacement of water and a 400 mm column of water was observed. The water temperature was 25°C and the barometric pressure was 758.8 mm Hg (torr). Assume the metal reacts with HCl as X (s) + 2 HCI (aq) → H2 (g) + XCl, (aq) What is the vapor pressure of the water vapor in the column? (Consult Appendix E.) b) What is the pressure of the water column expressed in mm Hg (torr)? The density of mercury is 13.6 g/mL. c) Calculate the pressure of the hydrogen gas above the water in the column.

Chemistry: Principles and Reactions

8th Edition

ISBN:9781305079373

Author:William L. Masterton, Cecile N. Hurley

Publisher:William L. Masterton, Cecile N. Hurley

Chapter10: Solutions

Section: Chapter Questions

Problem 89QAP

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