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zimovet [89]
4 years ago
10

How many moles of kcl are produced from 2.00 moles of k and excess cl2?​

Chemistry
1 answer:
adoni [48]4 years ago
8 0

Answer:

\large\boxed{\text{2.00 mol of KCl}}

Explanation:

             2K + Cl₂ ⟶ 2KCl

n/mol:  2.00  

2 mol of KCl are formed from 2 mol of K

\text{Moles of KCl} = \text{2.00 mol K} \times \dfrac{\text{2 mol KCl}}{\text{2 mol K}} = \textbf{2.00 mol KCl}\\\\\text{The reaction produces $\large\boxed{\textbf{2.00 mol of KCl}}$}

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If 5.57 g of Ag2O is sealed in a 75.0-mL tube filled with 760 torr of N2 gas at 28 ∘C, and the tube is heated to 310 ∘C, the Ag2
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Answer: Total pressure = 7293.2 torr or 9.60 atm

Explanation:

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The partial pressure due to nitrogen is determined using the equation of Gay-Lussac's law: <em>P₁/T₁=P₂/T₂</em>

P₁ = 760 torr = 1atm, T₁ = 28∘C = (273+28)K = 301k, P₂ = ?, T₂ = 310∘C =(310+273)K = 583K

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2Ag₂O ----> 4Ag + O₂(g)

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2*232g i.e. 464g of Ag₂O produces 22.4L of O₂

5.57g of Ag₂O will produce 5.57g*22.4L/464g = 0.269L or 269mL of O₂

Using the General gas equation  P₁V₁/T₁=P₂V₂/T₂

P₁ = 1atm = 760 torr, V₁ = 269mL, T₁=273K, P₂ = ?, V₂= 75mL, T₂ = 583K

P₂ = P₁V₁T₂/V₂T₁

P₂ = 760*269*583 / 75*273

P₂ = 5821.17 torr

Total pressure = (1472.03 + 5821.17) torr

Total pressure = 7293.2 torr or 9.60 atm

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