Galvanized nails are iron nails that have been plated with zinc to prevent rusting. The relevant reaction is Learning Goal: To relate current, time, charge, and mass for electroplating Zn2+(aq) + 2e-→Zn(s) calculations. For a large batch of nails, a manufacturer needs to plate a total zinc mass of 2.80 kg on the surface to get adequate coverage. Electroplating is a form of electrolysis in which a metal is deposited on the surface of another metal. To quantify electrolysis, use the following relationships. Part A Electric current is measured in amperes (A), which expresses the amount of charge, in coulombs (C), that flows per second (s): 1A = 1 C/s How many moles of zinc are in 2.80 kg of zinc? Express your answer to three significant figures and include the appropriate units. Another unit of charge is the faraday (F), which is equal to a mole of electrons and is related to charge in coulombs as follows: 42.8 mol 1F = 1 mol e = 96, 500 C Submit Previous Answers Correct Part B How many coulombs of charge are needed to produce 42.8 mol of solid zinc? Express your answer to three significant figures and include the appropriate units. ? Value Units Submit Request Answer

Galvanized nails are iron nails that have been plated with zinc to prevent rusting. The relevant reaction is Learning Goal: To relate current, time, charge, and mass for electroplating Zn2+(aq) + 2e-→Zn(s) calculations. For a large batch of nails, a manufacturer needs to plate a total zinc mass of 2.80 kg on the surface to get adequate coverage. Electroplating is a form of electrolysis in which a metal is deposited on the surface of another metal. To quantify electrolysis, use the following relationships. Part A Electric current is measured in amperes (A), which expresses the amount of charge, in coulombs (C), that flows per second (s): 1A = 1 C/s How many moles of zinc are in 2.80 kg of zinc? Express your answer to three significant figures and include the appropriate units. Another unit of charge is the faraday (F), which is equal to a mole of electrons and is related to charge in coulombs as follows: 42.8 mol 1F = 1 mol e = 96, 500 C Submit Previous Answers Correct Part B How many coulombs of charge are needed to produce 42.8 mol of solid zinc? Express your answer to three significant figures and include the appropriate units. ? Value Units Submit Request Answer

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

How you can improve resolution in HPLC analysis
Why HPLC is an important technique in the fields of chemistry . explain with different reasons?
Discuss three practical applications of solvent extraction in analytical chemistry.
What is a primary standard?
Plot a professional quality standard curve (absorbance vs. protein amount in µg) with an appropriate title and caption underneath the plot from the data give above. The caption should include the best-fit data.
100- 80- 60- 40- 20 A/ 10 10 9 2 7 Find out the functional 트 group OVE W/cm Integration 2 4 6 5 ppm 3 3 2 i
A quality-control laboratory analyzes a product mixture us-ing gas-liquid chromatography. The separation of components ismore than adequate, but the process takes too long. Suggest twoways, other than changing the stationary phase, to shorten theanalysis time
Enumerate the differences between a serological and a volumetric pipette and enumerate the uses, advantages, and limitations of a glass versus a plastic volumetric pipette.
What are method blanks and method detection limit used in analytical chemistry? Explain thoroughly
KS - Alec Nema - Learn + A www-awu.aleks.com/alekscgi/x/Isl.exe/1o_u-lgNslkr7j8P3jH-lvUrTNdLZh5A8CnG03PBGuXr8iCPa7ZMmym9ptTdXEBuyh4nRbErwikmldvGYg7DAf2EO_jCH3o... ☆ Sprouts Academy. Online Tutoring C 400 Request Heade. Q Weather & Soil CH.. O ADVANCED MATERIAL Using solubility to calculate solute mass or solution volume Alec The solubility in water of ionic compound X is measured and found to be 0.143 g at 10. °C. Calculate the volume of a saturated solution of Xin water that ml would contain 210. mg of X at this temperature. Be sure your answer has the correct unit symbol and 3 significant digits. Explanation Check O 2020 McGraw-Hill Education. All Rights Reserved. Terms of Use Privacy| Accessibilit 4:20 11/25 35 O Type here to search DELL
2.Dscribe The History of Forensic Chemistry? 3.Enumerate and discuss the functions of forensic Chemist. 4.Discussed the Purposed of the Golden rules in the practice of Forensic Chrmistry. 5.What is Toxicology. 6.Discussed the History of Toxicology. 7.Discussed Tbr collection of Sample for toxicology. 8.Discussed The importance of toxicology. 9.Discussed the Types of poison. 10. Discussed the entrance and elimination of poisons in Human body....
Why is strict implementation of LQMS (Laboratory Quality Management System) or GLP is necessary ? What are the elements ?