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Whenever an acid is neutralized by a bas...

Whenever an acid is neutralized by a base, the net reaction is
`H^(o+) (aq) + bar(O)H(aq) to H_(2)O(l) (l) , Delta H = -57 kJ`.
Calculate the heat evolved for the following experiment?
400 mL of 0.2 M is mixed with 600 mL of 0.1 M KOH solution.

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To solve the problem, we need to calculate the heat evolved when 400 mL of 0.2 M H₂SO₄ is mixed with 600 mL of 0.1 M KOH solution. The reaction between the acid and base will produce water and a salt, with the enthalpy change (ΔH) for the neutralization reaction given as -57 kJ for the formation of 1 mole of water. ### Step-by-Step Solution: **Step 1: Calculate the number of moles of H₂SO₄.** - Molarity (M) = Number of moles / Volume (L) - Given: Molarity of H₂SO₄ = 0.2 M, Volume = 400 mL = 0.4 L - Number of moles of H₂SO₄ = Molarity × Volume = 0.2 M × 0.4 L = 0.08 moles ...
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