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일반화학/[03장] 화학량론

0.25 mol Ag2S gram AgNO3

by 영원파란 2021. 6. 15.

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0.25 mol Ag2S gram AgNO3

 

 

How many grams of AgNO3 are needed

to produce 0.25 mol of Ag2S?

2AgNO3 + H2S → Ag2S + 2HNO3

 

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AgNO3 : Ag2S = 2 : 1 = ? mol : 0.25 mol

 

? = 2 × 0.25 = 0.50 mol AgNO3

 

 

 

AgNO3의 몰질량 = 169.87 g/mol

0.50 mol × (169.87 g/mol) = 84.935 g AgNO3

 

 

 

답: 85 g

 

 

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