A chemist uses 0 point 2 5 liters of 2 point 0 0 cap m cap h sub 2 SO sub 4 to completely neutralize a 2 point 0 0 liters of solution of NaOH The balanced chemical equation of the reaction is given. 2NaOH+H_2⁢SO_4→Na_2⁢SO_4+2H_2O What is the concentration of NaOH that is used?

The sulfuric acid supplies 0.25 L × 2.00 mol/L = 0.50 mol H₂SO₄. The balanced equation shows that each mole of H₂SO₄ reacts with 2 moles of NaOH, so the neutralized solution contains 1.00 mol NaOH. Its concentration is 1.00 mol ÷ 2.00 L = 0.50 M, so the answer is A, 0.50 M.

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