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일반화학/[03장] 화학량론

92.1 g Fe, 2.59 g C, 1.59 g Cr mass percent

by 영원파란 2022. 10. 31.

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92.1 g Fe, 2.59 g C, 1.59 g Cr mass percent

 

 

A sample of an iron alloy contains

92.1 g Fe, 2.59 g C, and 1.59 g Cr.

Calculate the percent by mass

of each component present in the alloy sample.

 

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▶ 참고: 조성 백분율

[ https://ywpop.tistory.com/12958 ]

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각 성분의 질량 백분율 계산

 

%Fe = 92.1 / (92.1 + 2.59 + 1.59) × 100 = 95.66% = 95.7%

 

%C = 2.59 / (92.1 + 2.59 + 1.59) × 100 = 2.69%

 

%Cr = 1.59 / (92.1 + 2.59 + 1.59) × 100 = 1.65%

 

[참고]

95.66 + 2.69 + 1.65 = 100

 

 

 

 

철 합금 1.00 kg 제조에 필요한 각 성분의 질량 계산

 

1.00 kg × (95.66/100) = 0.9566 kg = 956.6 g Fe

1.00 kg × (95.7/100) = 0.957 kg = 957 g Fe

 

1.00 kg × (2.69/100) = 0.0269 kg = 26.9 g C

 

1.00 kg × (1.65/100) = 0.0165 kg = 16.5 g Cr

 

[참고]

956.6 + 26.9 + 16.5 = 1000 g = 1.00 kg

 

 

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