Chem 2 Chapter 18 - Exam...

Info iconThis preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: Exam Name___________________________________ MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1) Write the overall cell reaction for the galvanic cell given below. Pt( s ) v H 2 ( g ) v H + ( aq ) vv Cl 2 ( g ) v Cl- ( aq ) v Pt( s ) A) 2 H + ( aq ) + 2 Cl 2 ( g ) 2 HCl( aq ) B) H 2 ( g ) + Cl 2 ( aq ) 2 H + ( aq ) + 2 Cl- ( g ) C) Pt( s ) + H 2 ( g ) + Cl- ( aq ) Pt( s ) + 2 H + ( aq ) + 2 Cl 2 ( g ) D) No reaction would occur because there is no salt bridge. 1) 2) What is the balanced chemical equation for the galvanic cell reaction expressed using shorthand notation below? Al( s ) v Al 3+ ( aq ) vv Zn 2+ ( aq ) v Zn( s ) A) 2 Zn( s ) + 3 Al 3+ ( aq ) 2 Zn 2+ ( aq ) + 3 Al( s ) B) 2 Al( s ) + 3 Zn 2+ ( aq ) 2 Al 3+ ( aq ) + 3 Zn( s ) C) 3 Al( s ) + 2 Zn 2+ ( aq ) 3 Al 3+ ( aq ) + 2 Zn( s ) D) 3 Zn( s ) + 2 Al 3+ ( aq ) 3 Zn 2+ ( aq ) + 2 Al( s ) 2) Shown below is a galvanic cell with anode compartment b containing anode a and cathode compartment d containing cathode c. Electrons flow through wire f, ions flow through salt bridge e, and the cell potential is read using voltmeter g. This galvanic cell uses the reaction: Cu( s ) + 2 Ag + ( aq ) 2 Ag( s ) + Cu 2+ ( aq ). 3) If the concentrations of Ag + ( aq ) and Cu 2+ ( aq ) are varied in this galvanic cell, which of the following four cells has the largest cell potential? A) [Ag + ] = 1.0 M and [Cu 2+ ] = 1.0 M B) [Ag + ] = 0.10 M and [Cu 2+ ] = 0.10 M C) [Ag + ] = 1.0 M and [Cu 2+ ] = 0.10 M D) [Ag + ] = 0.10 M and [Cu 2+ ] = 1.0 M 3) 1 4) The Hall-Heroult process for the production of aluminum involves the electrolysis of A) a molten mixture of Al 2 O 3 and Na 3 AlF 6 ....
View Full Document

Page1 / 8

Chem 2 Chapter 18 - Exam...

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online