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Ch.3 - Molecules and Compounds
Tro - Chemistry: A Molecular Approach 6th Edition
Tro6th EditionChemistry: A Molecular ApproachISBN: 9780137832217당신이 사용하는 게 아니라요?교과서 변경
모든 교과서Tro 6th EditionCh.3 - Molecules and Compounds문제 84
3장, 문제 84

Copper(II) fluoride contains 37.42% F by mass. Calculate the mass of fluorine (in g) in 23.8 g of copper(II) fluoride.

검증된 단계별 안내
1
Identify the percentage of fluorine in copper(II) fluoride, which is given as 37.42%.
Convert the percentage to a decimal by dividing by 100, resulting in 0.3742.
Multiply the decimal form of the percentage by the total mass of copper(II) fluoride to find the mass of fluorine: 0.3742 * 23.8 g.
Set up the multiplication to calculate the mass of fluorine in grams.
Perform the multiplication to find the mass of fluorine in the given sample of copper(II) fluoride.

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주요 개념

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

Mass Percent Composition

Mass percent composition is a way to express the concentration of an element in a compound, calculated as the mass of the element divided by the total mass of the compound, multiplied by 100. In this case, knowing that copper(II) fluoride contains 37.42% fluorine by mass allows us to determine how much of a given mass of the compound is due to fluorine.
추천 영상:
가이드 코스
00:38
Mass Percent Calculation

Calculating Mass from Percent Composition

To find the mass of an element in a compound using its percent composition, you multiply the total mass of the compound by the mass percent (expressed as a decimal). For example, if you have 23.8 g of copper(II) fluoride, you would calculate the mass of fluorine by taking 23.8 g and multiplying it by 0.3742 (the decimal form of 37.42%).
추천 영상:
가이드 코스
00:38
Mass Percent Calculation

Unit Conversion

Unit conversion is essential in chemistry for ensuring that measurements are in the correct units for calculations. In this context, while the mass of copper(II) fluoride is given in grams, understanding how to convert between different units (if necessary) is crucial for accurate calculations, especially when dealing with larger or smaller quantities.
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가이드 코스
01:56
Conversion Factors
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