6. A 0.3 mole HA aqueous solution (1L; if HA with K_a = 1 × 10^-6) was added 0.15 mole NaOH, what is the pH of this solution? (A) 7 (B) 6 (C) 5 (D) 4 (E) 3

6. A 0.3 mole HA aqueous solution (1L; if HA with $K_{\mathrm{a}} = 1 \times 10^{-6}$) was added 0.15 mole NaOH, what is the pH of this solution?
(A) 7
(B) 6
(C) 5
(D) 4
(E) 3

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統計： A(0), B(1), C(0), D(0), E(0) #3922350

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9. For a yellow-orange gas X, which will partially undergo trimerization to give a colorless gas $(X_{3})$ at $25^{\circ}C$. 3 X (yellow gas) → X₃ (colorless gas) If it was found that as the reaction temperature increases, the color of the two gaseous mixtures is getting darker. Which statement is correct? (A) The trimerization reaction is an endothermic and also exothermic reaction. (B) Cannot determine it is endothermic reaction or exothermic reaction. (C) The trimerization reaction is an exothermic reaction. (D) The trimerization reaction is an endothermic reaction. (E) All is correct.

6. A 0.3 mole HA aqueous solution (1L; if HA with $K_{\mathrm{a}} = 1 \times 10^{-6}$) was added 0.15 mole NaOH, what is the pH of this solution?
(A) 7
(B) 6
(C) 5
(D) 4
(E) 3

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6. A 0.3 mole HA aqueous solution (1L; if HA with $K_{\mathrm{a}} = 1 \times 10^{-6}$) was added 0.15 mole NaOH, what is the pH of this solution?(A) 7(B) 6(C) 5(D) 4(E) 3

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相關試卷

6. A 0.3 mole HA aqueous solution (1L; if HA with $K_{\mathrm{a}} = 1 \times 10^{-6}$) was added 0.15 mole NaOH, what is the pH of this solution?
(A) 7
(B) 6
(C) 5
(D) 4
(E) 3