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Ch.2 - Atoms & Elements
Tro - Chemistry: A Molecular Approach 4th Edition
Tro4th EditionChemistry: A Molecular ApproachISBN: 9780134112831당신이 사용하는 게 아니라요?교과서 변경
모든 교과서Tro 4th EditionCh.2 - Atoms & Elements문제 33
2장, 문제 33

The mass ratio of sodium to fluorine in sodium fluoride is 1.21:1. A sample of sodium fluoride produces 28.8 g of sodium upon decomposition. How much fluorine (in grams) forms?

검증된 단계별 안내
1
Determine the mass ratio of sodium to fluorine, which is given as 1.21:1. This means for every 1.21 grams of sodium, there is 1 gram of fluorine.
Calculate the total mass of sodium in the sample, which is provided as 28.8 grams.
Using the mass ratio, set up a proportion to find the mass of fluorine. If 1.21 grams of sodium corresponds to 1 gram of fluorine, then 28.8 grams of sodium will correspond to x grams of fluorine.
Solve the proportion: \( \frac{1.21 \text{ g Na}}{1 \text{ g F}} = \frac{28.8 \text{ g Na}}{x \text{ g F}} \). Cross-multiply and solve for x.
The value of x obtained from the proportion will be the mass of fluorine produced upon the decomposition of the sodium fluoride sample.

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 involved based on their molar ratios derived from balanced chemical equations. In this question, stoichiometry is essential for determining how much fluorine is produced from the given amount of sodium.
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. For sodium fluoride, knowing the molar masses of sodium and fluorine allows us to relate the mass of sodium to the mass of fluorine produced.
추천 영상:
가이드 코스
02:11
Molar Mass Concept

Mass Ratio

The mass ratio is a comparison of the mass of one substance to the mass of another in a compound. In sodium fluoride, the mass ratio of sodium to fluorine is given as 1.21:1, indicating that for every 1.21 grams of sodium, there is 1 gram of fluorine. This ratio is vital for determining the amount of fluorine produced when a specific mass of sodium is decomposed.
추천 영상:
가이드 코스
02:14
Neutron-Proton Ratio
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