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Ch.5 - Introduction to Solutions and Aqueous Solutions
Tro - Chemistry: A Molecular Approach 6th Edition
Tro6th EditionChemistry: A Molecular ApproachISBN: 9780137832217당신이 사용하는 게 아니라요?교과서 변경
모든 교과서Tro 6th EditionCh.5 - Introduction to Solutions and Aqueous Solutions문제 37
5장, 문제 37

If 2.50 L of a 4.80 M MgBr2 solution is diluted to 35.0 L, what is the molarity of the diluted solution?

검증된 단계별 안내
1
Identify the initial conditions: initial volume (V1) = 2.50 L and initial molarity (M1) = 4.80 M.
Identify the final volume after dilution: final volume (V2) = 35.0 L.
Use the dilution formula: M1 * V1 = M2 * V2, where M2 is the molarity of the diluted solution.
Rearrange the formula to solve for M2: M2 = (M1 * V1) / V2.
Substitute the known values into the equation to find M2.

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주요 개념

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

Molarity

Molarity (M) is a measure of concentration defined as the number of moles of solute per liter of solution. It is expressed in moles per liter (mol/L) and is crucial for understanding how much solute is present in a given volume of solution. In this question, the initial molarity of the MgBr2 solution is given, which is essential for calculating the final concentration after dilution.
추천 영상:
가이드 코스
01:13
Molarity

Dilution

Dilution is the process of reducing the concentration of a solute in a solution, typically by adding more solvent. The dilution equation, M1V1 = M2V2, relates the initial and final molarities (M1 and M2) and volumes (V1 and V2) of the solution. This concept is key to solving the question, as it allows us to determine the new molarity after the solution is diluted from 2.50 L to 35.0 L.
추천 영상:
가이드 코스
00:58
Dilution Equation

Conservation of Moles

The conservation of moles principle states that the number of moles of solute remains constant before and after dilution, assuming no solute is added or removed. This principle is fundamental in dilution calculations, as it allows us to equate the product of initial molarity and volume to the product of final molarity and volume. Understanding this concept is essential for accurately determining the molarity of the diluted solution.
추천 영상:
가이드 코스
01:48
Law of Conservation of Mass
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