Problem 3. A thin circular-disk earring 4.0 cm in diameter is plated with a coating of gold 0.025 cm thick from an Au bath. How many days does it take to deposit this amount of gold on one side o the earring if the current is 0.013 A (AW of gold=196.67 g/mol; density of gold = 19.3 g/cm).

Problem 3. A thin circular-disk earring 4.0 cm in diameter is plated with a coating of gold 0.025 cm thick from an Au bath. How many days does it take to deposit this amount of gold on one side o the earring if the current is 0.013 A (AW of gold=196.67 g/mol; density of gold = 19.3 g/cm).

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

Related questions

Q: This question has multiple parts. Work all the parts to get the most points. a You have a…

A: Cell potential and new cell potential of both subdivision is answered below

Q: How many grams of cobalt metal will be deposited from a solution that contains Co2+ ions if a…

A: Ans is 0.546g

Q: How many seconds are required to deposit 0.207 grams of iron metal from a solution that contains…

A: According to Farady's law of electrolysis we can write m =I×t×MF×νwhereI = currentt = timeM = atomic…

Q: How many grams of chromium metal will be deposited from a solution that contains Cr3+ ions if a…

A: Faraday's 1st law of electrolysis : The amount of substance deposited is directly proportional to…

Q: How many seconds are required to deposit 0.167 grams of cadmium metal from a solution that contains…

Q: Problem 1: Giorno Giovanna likes golden stuff. However, since he is currently broke, he has to…

A: Gold metallic state with oxidation state is zero

Q: How many grams of zinc metal will be deposited from a solution that contains Zn2+ ions if a current…

A: The Faraday's 1st law of electrolysis is one of the most important law which explains the…

Q: Determine the molar mass (amu) of Metal (M) if it took 2.35 minutes for a current of 1.06 A to plate…

Q: How many

A: Mg+2 + 2e- --> Mg From Faraday's first law W = (M / n x F) x i x t Where W = mass of…

Q: Determine the time required to deposit 5.25 g of silver on a surfacefrom a silver nitrate solution…

Q: How many seconds are required to deposit 0.268 grams of iron metal from a solution that contains…

A: Given Mass deposited (m) = 0.268 g Current (i) = 1.22 A Time (t) = ? S The equation is Fe2+ + 2e-…

Q: E Fe Pt/Fe³+ (0.1600 M), Fe2+(0.0700 M) // Hg2+ (0.0350 M)/Hg EHg2+ = +0.854 V O +0.020 V…

Q: Using a current of 4.75 amperes (A), how many minutes does it take to plate a figure with 1.54 grams…

A: Current= charge/time I = Q/t 1 F = 96500 C mol-1

Q: 03) Pt Bran HBr (aq, 0.10 M) || Al(NO3)³(aq, 0.010 M) | Alo a) Calculate the potential of each cell…

Q: at mass of

Q: Question 28 Which type of half-cell, when used along with a Mn/Mn2+ half-cell, gives the largest…

Q: Problem 1: Giorno Giovanna likes golden stuff. However, since he is currently broke, he has to…

A: Gold ion while electroplating will gain 3 electrons and get reduced to solid gold according to the…

Q: Part A The surface area of an object to be gold plated is 49.9 cm? and the density of gold is 19.3 g…

A: Given, Surface area, A = 49.9 cm2 Density = 19.3 g/cm3 Current = 3.35 A Thickness = 1.20x10-3 cm

Q: Giorno Giovanna likes golden stuff. However, since he is currently broke, he has to settle for…

Q: Use the References to access important values if needed for this question. Salt bridge A…

Q: What mass of Ni(s) may be deposited from an aqueous NiCl2 solution if a current of 2.50 A is applied…

A: Reaction occuring Ni+2 (aq) + e- --------> Ni(s)

Q: Thorium, Th, is an actinide metal that can be used as a contact explosive much solid thorium could…

A: Given, Current is passed through Th4+ solution is ---- 0.51A Time is ---- 3hours How much thorium is…

Q: What is the voltage of below reaction and is the below reaction spontaneous? Cu2+(aq) +…

A: Standard EMF of an electrochemical cell is given by the relationship:Ecello=Ecathodeo-Eanodeo…

Q: None

A: Given Data ,The amount of current applied,i=0.657 ATime taken,t=72.5 minutes = 72.5 × 60 sec = 4350…

Q: How many minutes are required to deposit 1.35 g Cr from a Cr³* (aq) solution using a current of 2.50…

A: According Faraday 's first law W=Zit

Q: 20. How long in minutes would it take to electroplate a spoon with 0.50 g of silver (107.87 g mol¹)…

Q: 2+ How many grams of manganese metal will be deposited from a solution that contains Mn-" ions if a…

A: Mn(s) ---> Mn2+ (aq) Atomic mass of Mn = 54.938044 g n = 2 electron Current = 0.689 A Time…

Q: Ağ metal is oxidized to AgCI(s) on the surface of the Ag electrode in a 0.1 M HCI solution. At a…

A: The time 1 minutes is equal to 60 second. Total number of moles of electron transferred in the…

Q: Current Attempt in Progress Suppose 30.0 mL of 0.100 M Pb(NO3)2 is added to 60.0 mL of 0.150 M KI.…

A: This question is from mole concept chapter. Dear learner, I am authorized to answer only one…

Q: How many seconds are required to deposit 0.101 grams of nickel metal from a solution that contains…

Q: Giorno Giovanna likes golden stuff. However, since he is currently broke, he has to settle for…

A: Please find your solution below :

Q: Determine the potential of a platinum electrode when placed in a mixture of 0.0244 M potassium…

Q: How many seconds are required to deposit 0.209 grams of cobalt metal from a solution that contains…

A: To calculate the time required to deposit 0.209 grams of cobalt metal from a solution containing…

Q: How long will it take to plate out 1.9 g Ni from aqueous Ni2+ with a current of 114.4 A? WHERE ARE…

Q: How many minutes are required to deposit 1.48 g Cr from a Cr³⁺(aq) solution using a current of 2.50…

A: According to Faraday's law of electrolysis, the mass (m) of substance deposited at the electrode is…

Q: A Cr3+(aq) solution is electrolyzed using a current of 13.5 A. What mass of Cr(s) is plated out…

Q: What current strength in ampere is required to deposit 500mg of Ni+2 from a Ni+2 playing cell of an…

A: Recall reaction for deposition of Ni from Ni+2 Ni+2+2e→Ni Recall Faraday's combined law…

Q: Problem 1: Giorno Giovanna likes golden stuff. However, since he is currently broke, he has to…

Q: A voltaic cell with Mn/Mn2+ and Cd/Cd2+ half-cell has the following initial concentrations: [Mn2+] =…

Q: How many grams of aluminum metal will be deposited from a solution that contains Al^3+ ions if a…

A: Current = 0.826ampere Time = 55.5 minute = 55.5×60 second (1 minute = 60 second)

Q: C) Calculate the voltage for this cell. V Porous Barrier AI Sn 0.435 M AI3+ 0.00212 M Sn²*

A: At anode : Al ---> Al3+ + 3e- => E° = -1.66 V At cathode : Sn2+ + 2e- ----> Sn =>…

Q: How many grams of zinc metal will be deposited from a solution that contains Zn?+ ions if a current…

Q: How long will it take to plate out 1.0 g Ni from aqueous Ni2+ with a current of 119.9 A? WHERE ARE…

A: Given:: Mass of Ni = 1.0 g molar mass of Ni = 58.6934 g mol-1 Current = 119.9 A Time (t) = ?

Q: A student deposited 2.50 g of zinc (65.39 g/mol) onto a sculpture from a ZnSO4 solution. The…

A: Given that : The mass of zinc deposited = 2.50 g Molar mass of Zn = 65.39 g/mol Current supplied =…

Q: Halogen lightbulb filaments are sometimes made from a high melting point metal. The most common ore…

A: Given :- Current Passed = I = 74.00 A = 74.00 C/s Time = t = 709.2 minutes = 42552 s Metal M…

Q: Calculate the Ecell between two Cu2+/Cu half-cells, one of which contains 0.01 M Cu2+ and the other…

Concept explainers

Electrolysis

Electrolysis is defined as the process of breaking down ionic compounds into their constituent elements by passing a direct electric current through the compound in a fluid state. The cathode reduces cations, while the anode oxidizes anions. An electrolyte, electrodes, and some form of external power source are the main components required for conducting electrolysis. A partition, such as an ion-exchange membrane or a salt bridge, may also be used, but this is optional. These are primarily used to prevent the products from diffusing near the opposing electrode.

Question

Problem 3. A thin circular-disk earring 4.0 cm in diameter is plated with a coating of gold 0.025 cm
thick from an Au" bath. How many days does it take to deposit this amount of gold on one side of
the earring if the current is 0.013 A (AW of gold=196.67 g/mol; density of gold = 19.3 g/cm).
%3D

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 2 steps

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.

Similar questions

an acidic soltion containing BiO+ is electrolyzes using a current of 0.500A what weight of bi metal is plated out in 45 seconds
2 attempts left Be sure to answer all parts. To improve conductivity in the electroplating of automobile bumpers, a thin coating of copper separates the steel from a heavy coating of chromium. (a) What mass of Cu is deposited on an automobile trim piece if plating continues for 1.25 h at a current of 7.6 A? (b) If the area of the trim piece is 50.0 cm2, what is the thickness of the Cu coating?(d of Cu = 8.95 g/cm3)
INTERACTIVE EXAMPLE Electroplating How long will it take to plate out 1.0 g Ni from aqueous Ni2+ with a current of 119.9 A? HOW DO WE GET THERE? How many moles of Ni are present in 1.0 g? mol Ni
How long will it take to plate out 1.2 g Ni from aqueous Ni2+ with a current of 112.4 A? WHERE ARE WE GOING? What information do we need to determine how long will it take to plate out 1.2 g Ni from aqueous Ni2+ with a current of 112.4 A? (Select all that apply.) O 1.2 g Ni molar mass of Nİ Ni2+ + 2e - Nİ F = 96,485 C/mol e 112.4 A
3. How much Cr(s) will plate out of a K2CrO4 solution if we use a current of 15A for 1 hour? (Railroad track method)
How many grams of zinc metal will be deposited from a solution that contains Zn2+ ions if a current of 0.766 A is applied for 50.5 minutes?______ grams
Kindly show all your work for the following question:
How many seconds are required to deposit 0.107 grams of copper metal from a solution that contains Cu2+ ions, if a current of 0.903 A is applied._________ s
13 study guide
Pls help ASAP.
A current of 5.48 A is passed through a Cr(NO3)2 solution for 1.90 h. How much chromium is plated out of the solution? mass of chromium:__________
INTERACTIVE EXAMPLE Electroplating How long will it take to plate out 4.2 g Ni from aqueous Ni2+ with a current of 112.3 A? HOW DO WE GET THERE? What is the quantity of charge carried by these electrons (in C)?