×
Log in to StudySoup
Get Full Access to Chemistry: A Molecular Approach - 3 Edition - Chapter 18 - Problem 78e
Join StudySoup for FREE
Get Full Access to Chemistry: A Molecular Approach - 3 Edition - Chapter 18 - Problem 78e

Already have an account? Login here
×
Reset your password

A voltaic cell consists of a Pb/Pb2+ half-cell and a

Chemistry: A Molecular Approach | 3rd Edition | ISBN: 9780321809247 | Authors: Nivaldo J. Tro ISBN: 9780321809247 1

Solution for problem 78E Chapter 18

Chemistry: A Molecular Approach | 3rd Edition

  • Textbook Solutions
  • 2901 Step-by-step solutions solved by professors and subject experts
  • Get 24/7 help from StudySoup virtual teaching assistants
Chemistry: A Molecular Approach | 3rd Edition | ISBN: 9780321809247 | Authors: Nivaldo J. Tro

Chemistry: A Molecular Approach | 3rd Edition

4 5 1 352 Reviews
22
3
Problem 78E

A voltaic cell consists of a Pb/Pb2+ half-cell and a Cu/Cu2+ half-cell at 25 oC. The initial concentrations of Pb2+ and Cu2+ are 0.0500 M and 1.50 M, respectively.

a. What is the initial cell potential?

b. What is the cell potential when the concentration of Cu2+ has fallen to 0.200 M?

c. What are the concentrations of Pb2+ and Cu2+ when the cell potential falls to 0.35 V?

Step-by-Step Solution:
Step 1 of 3

Chapter 2 Measurements • Precision – How closely a series of measurements agree with each other • Accuracy – How close a series of measurements agrees with the true value • Significant Figures – Shows level of uncertainty in measurements  1.2314, 1.2315, 1.2317 = 5 significant figures Counting Rules • Zeros between two other significant digits are significant (1.903) • A lone zero before a decimal point is cosmetic and not significant (0.193) • Zeros to the right of a decimal point that precede the first nonzero digit are placeholders and not significant (0.00193) • Zeros at the end of a number are significant if they are to the right of the decimal point (0.210) Manipulation Rules For Multiplication and Division  The reported result has no more significant figures than the factor with the fewest significant figures For Addition and Subtraction  The number of significant digits to the right of the decimal point in the answer should be the same as the number added/subtracted with the fewest. Rounding  If the leftmost digit to be dropped is 0, 1, 2, 3, 4, – leave the final remaining digit unchanged  If the leftmost digit to be dropped is 5, 6, 7, 8, 9 – increase the final digit by one.  Intermediate Rounding or Not – may give different answers Energy  Divided into Kinetic Energy (motion) and Potential Energy (abi

Step 2 of 3

Chapter 18, Problem 78E is Solved
Step 3 of 3

Textbook: Chemistry: A Molecular Approach
Edition: 3
Author: Nivaldo J. Tro
ISBN: 9780321809247

Other solutions

People also purchased

Related chapters

Unlock Textbook Solution

Enter your email below to unlock your verified solution to:

A voltaic cell consists of a Pb/Pb2+ half-cell and a