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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 147a
19장, 문제 147a

When the nickel–zinc battery, used in digital cameras, is recharged, the following cell reaction occurs: (a) How many grams of zinc are formed when 3.35 x 10-2 g of Ni(OH)2 are consumed?

검증된 단계별 안내
1
Identify the balanced chemical equation for the reaction: Ni(OH)_2 + Zn^2+ -> Ni^2+ + Zn(OH)_2.
Determine the molar mass of Ni(OH)_2 using the periodic table.
Calculate the number of moles of Ni(OH)_2 consumed using the formula: moles = mass / molar mass.
Use the stoichiometry of the balanced equation to find the moles of Zn formed. The molar ratio between Ni(OH)_2 and Zn is 1:1.
Calculate the mass of Zn formed using the formula: mass = moles * molar mass of Zn.

비슷한 문제에 대한 검증된 영상 답변:

이 영상 해법은 위 문제에 도움이 된다고 튜터들이 추천한 것입니다.
영상 길이:
1m

주요 개념

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

Stoichiometry

Stoichiometry is the branch of chemistry that deals with the quantitative relationships between the reactants and products in a chemical reaction. It allows us to calculate the amounts of substances consumed and produced in a reaction based on balanced chemical equations. Understanding stoichiometry is essential for determining how much zinc is formed from a given amount of Ni(OH)2.
추천 영상:
가이드 코스
01:16
Stoichiometry Concept

Molar Mass

Molar mass is the mass of one mole of a substance, typically expressed in grams per mole (g/mol). It is crucial for converting between the mass of a substance and the number of moles, which is necessary for stoichiometric calculations. In this question, knowing the molar masses of Ni(OH)2 and zinc will enable the calculation of the grams of zinc produced from the given mass of Ni(OH)2.
추천 영상:
가이드 코스
02:11
Molar Mass Concept

Redox Reactions

Redox (reduction-oxidation) reactions involve the transfer of electrons between substances, resulting in changes in oxidation states. In the context of the nickel-zinc battery, understanding the redox process is important for identifying how zinc is produced when Ni(OH)2 is consumed. Recognizing which species is oxidized and which is reduced helps in predicting the products of the reaction.
추천 영상:
가이드 코스
03:12
Identifying Redox Reactions
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