Calculate [H⁺] in a 1.0 M solution of Na₂CO₃ (for H₂CO₃, K_a1 = 4.3 * 10^-⁷ and K_a2 = 5.6 * 10^-¹¹). A) 6.6 *10^-⁴ M B) 7.5 *10^-¹³ M C) 7.5 * 10^-⁶ M D) 1.3 * 10^-² M E) none of these

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In a 1.0 M solution of Na2CO3, CO3^2- acts as a base. The concentration of H+ can be calculated using the second ionization constant (Ka2) of H2CO3, which is 5.6 x 10^-11. The concentration of H+ is approximately equal to the square root of (Ka2 * initial concentration of CO3^2-), resulting in 7.5 x 10^-13 M.

Calculate [H+] in a 1

Calculate [H⁺] in a 1