The zinc within a copper-plated penny will dissolve in hydrochloric acid if the copper coating is filed down in several spots (so that the hydrochloric acid can get to the zinc). The reaction between the acid and the zinc is as follows: Part A 2H (aq)Zn(s) -> H2(g) Zn2(aq) What mass of hydrogen gas was collected? When the zinc in a certain penny dissolves, the total volume of gas collected over water at 25 °C was 0.957 L at a total pressure of 758 mm Hg . VASD η ΑΣφ Vapor Pressure of Water versus Temperature Temperature Pressure Temperature Pressure (mmHg) (° C) m = g (C) (mmHg) 4.58 118.2 0 55 Request Answer Submit 6.54 60 149.6 9.21 65 187.5 10 233.7 15 12.79 70 Return to Assignment Provide Feedback 20 17.55 289.1 75 25 23.78 355.1 80 85 433.6 30 31.86 35 42.23 525.8 90 40 55.40 633.9 95 45 760.0 71.97 100 92.6 50

The zinc within a copper-plated penny will dissolve in hydrochloric acid if the copper coating is filed down in several spots (so that the hydrochloric acid can get to the zinc). The reaction between the acid and the zinc is as follows: Part A 2H (aq)Zn(s) -> H2(g) Zn2(aq) What mass of hydrogen gas was collected? When the zinc in a certain penny dissolves, the total volume of gas collected over water at 25 °C was 0.957 L at a total pressure of 758 mm Hg . VASD η ΑΣφ Vapor Pressure of Water versus Temperature Temperature Pressure Temperature Pressure (mmHg) (° C) m = g (C) (mmHg) 4.58 118.2 0 55 Request Answer Submit 6.54 60 149.6 9.21 65 187.5 10 233.7 15 12.79 70 Return to Assignment Provide Feedback 20 17.55 289.1 75 25 23.78 355.1 80 85 433.6 30 31.86 35 42.23 525.8 90 40 55.40 633.9 95 45 760.0 71.97 100 92.6 50

Chemistry: Principles and Practice

3rd Edition

ISBN:9780534420123

Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer

Publisher:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer

Chapter15: Solutions Of Acids And Bases

Section: Chapter Questions

Problem 15.122QE: A Liquid HF undergoes an autoionization reaction: 2HFH2F++F (a) Is KF an acid or a base in this...

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