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일반화학/[03장] 화학량론

CaCO3 612 g CaO 343 g CO2 gram

by 영원파란 2023. 4. 3.

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CaCO3 612 g CaO 343 g CO2 gram

 

 

A sample of CaCO3 was heated, causing it to form CaO and CO2 gas.

Solid CaO remained behind, while the CO2 escaped to the atmosphere.

If the CaCO3 weighed 612 g and the CaO weighed 343 g,

how many grams of CO2 were formed in the reaction?

 

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CaCO3 → CaO + CO2

 

 

 

> CaO의 몰질량 = 56.08 g/mol

> CO2의 몰질량 = 44.01 g/mol

 

 

 

질량비로 계산하면,

( 참고: 질량비로 계산 https://ywpop.tistory.com/5078 )

 

CaO : CO2 = 56.08 : 44.01 = 343 g : ? g

 

? = 44.01 × 343 / 56.08 = 269.18 g CO2

 

 

 

답: 269 g

 

 

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