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Ch.3 - Mass Relationships in Chemical Reactions
McMurry - Chemistry 8th Edition
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모든 교과서McMurry 8th EditionCh.3 - Mass Relationships in Chemical Reactions문제 72b
3장, 문제 72b

Nickel(II) sulfate, used for nickel plating, is prepared by treat-ment of nickel(II) carbonate with sulfuric acid: NiCO3 + H2SO4 → NiSO4 + CO2 + H2O
(b) How many grams of NiSO4 are obtained if the yield is 78.9%?

검증된 단계별 안내
1
Identify the balanced chemical equation: \( \text{NiCO}_3 + \text{H}_2\text{SO}_4 \rightarrow \text{NiSO}_4 + \text{CO}_2 + \text{H}_2\text{O} \).
Determine the molar mass of each compound involved: \( \text{NiCO}_3 \), \( \text{H}_2\text{SO}_4 \), and \( \text{NiSO}_4 \).
Calculate the theoretical yield of \( \text{NiSO}_4 \) using stoichiometry based on the initial amount of \( \text{NiCO}_3 \) or \( \text{H}_2\text{SO}_4 \) provided.
Apply the percentage yield formula: \( \text{Actual Yield} = \text{Theoretical Yield} \times \frac{\text{Percentage Yield}}{100} \).
Convert the actual yield from moles to grams using the molar mass of \( \text{NiSO}_4 \).

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이 영상 해법은 위 문제에 도움이 된다고 튜터들이 추천한 것입니다.
영상 길이:
6m

주요 개념

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

Stoichiometry

Stoichiometry is the calculation of reactants and products in chemical reactions based on the balanced chemical equation. It allows chemists to determine the amount of product formed from a given amount of reactant. In this case, understanding the stoichiometric ratios from the reaction between nickel(II) carbonate and sulfuric acid is essential to calculate the theoretical yield of nickel(II) sulfate.
추천 영상:
가이드 코스
01:16
Stoichiometry Concept

Percent Yield

Percent yield is a measure of the efficiency of a chemical reaction, calculated by comparing the actual yield of a product to the theoretical yield. It is expressed as a percentage and is crucial for evaluating how much of the expected product was actually produced. In this question, the yield of 78.9% indicates that only a portion of the theoretical amount of NiSO4 was obtained.
추천 영상:
가이드 코스
03:09
Percent Yield in Reactions

Molar Mass

Molar mass is the mass of one mole of a substance, typically expressed in grams per mole (g/mol). It is essential for converting between the number of moles of a substance and its mass. To find the mass of NiSO4 produced, one must first calculate its molar mass and then apply it to the stoichiometric calculations involving the yield.
추천 영상:
가이드 코스
02:11
Molar Mass Concept
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