electrochemistry 2

JEE Main 2015 Questions › Physical Chemistry questions › electrochemistry 2

A lead storage cell when charged causes the formayion of H₂SO₄ and its cocentration is increased.In a battery having 1L electrolyte, contains 27by weight of H₂S0₄[density=1.13g/ml].On charging ,the sulphuric acid cocentration became 34.8% by weight.How many faraday`s were supplied to the battery for charging?

#Chemistry #Physical Chemistry

UP 0 DOWN 0 0 1
Post on FacebookPost anonymously?

1 Answers

1

skygirl ·2009-01-01 19:31:51

hey this very easy..

first find the no. of moles initially n1 : 27X1.13X1000/ 100X98 (98=mol.wt. of h2so4)

then find the no. of moles finally n2: 34.8X1.13X1000/ 100X98

now H2 liberated = n1-n2 =Î”n (say)

no of equi = Î”n X n-factor = Î”n (n factor is 1 here)

we know, 1 equi corresponds to 1F
=> 2 Î”n .................... Î”n F :)

UP 0 DOWN 0
Post on FacebookPost anonymously?

Your Answer

Basic Integral Calculus Operators Symbols Matrix Cases

√ √ || {} [] () → ~ ^ x x x → → ln log lg lim lim cos sin tan cot arcsin arccos arctan

∫ ∫ ∫ ∫ ∫ ∬ ∬ ∬ ∬ ∬ ∭ ∭ ∭ ∭ ∭ ⨌ ⨌ ⨌ ⨌ ⨌

∑ ∑ ∑ ∑ ∑ ∮ ∮ ∮ ∮ ∮ ∏ ∏ ∏ ∏ ∏ ∐ ∐ ∐ ∐ ∐

+ - × ÷ ± ∓ = ∪ ∩ ≠ ∼ ≈ ∅ ∀ ∃ ∈ ∋ ∝ ≤ ≥ ≃ ≅ ≡ < > ≪ ≫ ⊂ ∉ ⊃ ⊆ ⊇ ⇒ ⇐ ⇔ ⇒ ⇐ ⇔ ⇑ ⇓ ⇕ → ← ↔ → ← ↔ ↑ ↓ ↕ ↖ ↗ ↘ ↙ ↪ ↩ ⇀ ↼ ⇁ ↽

° ∂ ∞ α β γ δ θ λ μ ν ξ π ρ σ φ ω ε ƒ κ τ υ Γ Δ Λ Σ Π Ω