Practice: will the reaction be spontaneous? If not write the spontaneous direction, and calculate the Ecell. Sketch the cell and write the line notation of the spontaneous reaction. Zn + Ca2+ → Zn2+ + Ca a) Spontaneous b) Not spontaneous c) Not sure Zn2+(aq) + 2e Zn(s) -0.76 Cr³+ (aq) + 3e →Cr(s) -0.73 2 H₂O(l) + 2e H2(g) + 20H(aq) -0.83 Mn2+(aq) + 2e Mn(s) -1.18 Al3+(aq) + 3e Al(s) -1.66 Mg2+(aq) + 2e Mg(s) -2.37 Na+(aq) + e Na(s) -2.71 Ca²+(aq) + 2e¯ →→→ Ca(s) -2.76

Practice: will the reaction be spontaneous? If not write the spontaneous direction, and calculate the Ecell. Sketch the cell and write the line notation of the spontaneous reaction. Zn + Ca2+ → Zn2+ + Ca a) Spontaneous b) Not spontaneous c) Not sure Zn2+(aq) + 2e Zn(s) -0.76 Cr³+ (aq) + 3e →Cr(s) -0.73 2 H₂O(l) + 2e H2(g) + 20H(aq) -0.83 Mn2+(aq) + 2e Mn(s) -1.18 Al3+(aq) + 3e Al(s) -1.66 Mg2+(aq) + 2e Mg(s) -2.37 Na+(aq) + e Na(s) -2.71 Ca²+(aq) + 2e¯ →→→ Ca(s) -2.76

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

See similar textbooks

Similar questions

Which of the following would cause non-spontaneous REDOX reaction? [A] Cd + Zn* → Zn + Cd [B] 3Mg + Cr* → [C] Mn + Ni2* → Ni + Mn2+ [D] 3F22* + 2AI→ 2AI3* + 3Fe Zn2* + 2 e→ Zn ɛ°red -0.76 V; Cd²* + 2 e Cd ɛ°red = -0.40 V; Cr**+ 3 e> Cr ɛ°red = -0.74 V; Mg*+ 2 e Mg ɛ°red = -2.37 V; Ni*+ 2 e→ Ni ɛ°red = -0.25 V; Mn2*+ 2 e-→ Mn ɛ°red = -1.18 V; Al*+ 3 eAl e°red = 2 Cr + 3Mg* %3D -1.66 V; Fe2 + 2 e→ Fe ɛ°red +0.77 V %3D A O D
Enter electrons as e'. Use smallest possīble integer coefficients for ALL reactions. If a box is not needed, leave it blank. A voltaic cell is constructed in which the following cell reaction occurs. The half- cell compartments are connected by a salt bridge. Ch(g) + Co(s)2cr(aq) + Co"(aq) The anode reaction is: The cathode reaction is: In the external circuit, electrons migrate | the ColCo" electrode the Cr Clz electrode. In the salt bridge, anions migrate |the Co Co* compartment |the crCl, compartment. from to +
Calculate the voltage generated by a hydrogen-concentration cell utilizing the following concentrations: H2 (2 atm) + 2H+ (0.1 M)<- → H2 (0.5 atm) + 2H+ (0.5M) A concentration cell involves a reaction having the same reactants as products, but with differing concentrations. In which direction is the reaction spontaneous?
pls.ans.wer... ASAP. I really need help. you dont have to show all the steps but just help pls. I will highly consider thumps up
Consider the following cell notation and use a Table of Standard Electrode Potentials to answer the question below Cd(s)|Cd2+(aq) || Cu2+(aq ) | Cu(s) What would you change to increase the Ecell decrease Cd2+concentration decrease Cu2+concentration increase Cd2+concentration increase concentration of both ions decrease concentration of both ions
Use the References to access important values if needed for this question. What is the calculated value of the cell potential at 298K for an electrochemical cell with the following reaction, when the Cu²+ concentration is 6.63x10-4 M and the Mn²+ concentration is 1.47 M ? Cu²*(aq) + Mn(s)→ Cu(s) + Mn²+*(aq) Answer: V The cell reaction as written above is spontaneous for the concentrations given: true false Submit Answer Try Another Version 3 item attempts remaining
Chemistry emergency.
A 24.8mL sample of vegetable juice is titrated with 15.65mL of NaOH solution. The molar concentration of the NaOH is .106 M. The molar mass of citric acid is 192.12 g-mol-1. Express all with three significant figures. A) Determine the molar concentration of citric acid in the vegetable juice sample B) Determine the number of moles of citric acid per 240 mL of the vegetable juice. C) Determine the mass of citric acid per 240 mL of the vegetable juice. D) If the label on the bottle lists the citric acid contest as 1g per serving with a serving size of 240 mL determine the percent error in the rotation results. Express in 2 sig figs.
What is the answer to question 8 parts C and D ? Please show all work
Use Table to determine whether the following reactions are spontaneous under standard conditions.(a) Cu(s) + 2 H+(aq)---->Cu2+(aq) + H2(g)(b) Cl2(g) + 2 I-(aq)---->2 Cl-(aq)+ I2(s)
Given the reaction: Hg2+ + Cd ⇔ Cd2+ + Hg What is the Eo of the cell? (2 decimal places with the unit) Is the reaction spontaneous? (yes/no)
The standard cell potential (E°cell) for the voltaic cell based on the reaction below is __________ V. Zn (s) + Cu2+ (aq) → Cu (s) + Zn2+ (aq)