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27.02.2020 •
Chemistry
Chlorine gas reacts with phosphorus to produce phosphorus pentachloride. How many grams of PCl5 are produced from 3.5 g of Cl2 and excess P? Cl2(g) + P(s) --> PCl5(s) ( unbalanced)
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Ответ:
Therefore, 4.11 grams of PCl₅ are produced from 3.5 gram of Cl₂ and excess P.
Explanation:
Given equation is ,
Cl₂(g)+P(s) ⇒PCl₅(s)
First we have to balance this equation
5Cl₂(g)+2P(s) ⇒2PCl₅(s)
The atomic mass of Cl = 35.435 grams
The atomic mass of P =30.97 grams
The mass of 5Cl₂=(5×2×35.435) gram =354.35 grams
The mass of 2PCl₅ =2{30.97+(5×35.435)} gram = 416.29 grams
Therefore,
354.45 grams of Cl₂ needs to make 416.29 gram of PCl₅
1 gram of Cl₂ needs to make
gram of PCl₅
3.5 grams of Cl₂ needs to make
gram of PCl₅
=4.11 grams
Therefore, 4.11 grams of PCl₅ are produced from 3.5 gram of Cl₂ and excess P.
Ответ:
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