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Ch.19 - Electrochemistry
McMurry - Chemistry 8th Edition
McMurry8th EditionChemistryISBN: 9781292336145당신이 사용하는 게 아니라요?교과서 변경
모든 교과서McMurry 8th EditionCh.19 - Electrochemistry문제 146b
19장, 문제 146b

In order to charge a lead storage battery (Section 19.10) 500.0 g of PbSO4(s) must be converted into PbO2(s) and Pb(s). (b) How many coulombs of electrical charge are needed?

검증된 단계별 안내
1
Identify the balanced chemical reaction for the conversion of PbSO_4(s) to PbO_2(s) and Pb(s).
Determine the molar mass of PbSO_4 to convert the given mass (500.0 g) into moles.
Use stoichiometry to find the moles of electrons required for the conversion based on the balanced equation.
Calculate the total charge in coulombs using the relationship between moles of electrons and charge (1 mole of electrons = 96485 C).
Summarize the steps to ensure all conversions and calculations align with the stoichiometry of the reaction.

비슷한 문제에 대한 검증된 영상 답변:

이 영상 해법은 위 문제에 도움이 된다고 튜터들이 추천한 것입니다.
영상 길이:
4m

주요 개념

질문에 올바르게 답하기 위해 반드시 이해해야 하는 핵심 개념들은 다음과 같습니다.

Electrochemical Reactions

Electrochemical reactions involve the transfer of electrons between chemical species, which is fundamental in processes like charging a battery. In a lead storage battery, lead sulfate (PbSO4) is converted into lead dioxide (PbO2) and lead (Pb) through oxidation and reduction reactions, releasing or consuming electrons in the process.
추천 영상:
가이드 코스
02:46
Electrochemical Cells

Faraday's Laws of Electrolysis

Faraday's Laws of Electrolysis quantify the relationship between the amount of substance transformed at an electrode and the quantity of electric charge passed through the electrolyte. The first law states that the mass of a substance altered at an electrode is directly proportional to the total electric charge passed, which is crucial for calculating the charge needed to convert PbSO4 to PbO2 and Pb.
추천 영상:
가이드 코스
01:40
Faraday's Constant in Electrochemistry

Coulombs and Charge Calculation

Coulombs (C) are the standard unit of electric charge in the International System of Units (SI). To determine the total charge required for the conversion of PbSO4 to PbO2 and Pb, one must calculate the moles of electrons involved in the reaction and then use Faraday's constant (approximately 96485 C/mol) to convert moles of electrons to coulombs.
추천 영상:
가이드 코스
01:15
Coulomb's Law Concept 2
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