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Recent questions tagged telegram-53225

(chatquestion)...[Given : K of HCUUH = 1.8 x 1041 (A) 4.36 g (B) 5.85 g (Q.8- Q.9) (C) 3.76g 000 CH COOH is titrated with 0 1 M NAOH solution, pH of the solution after the addition of: (D) 5.12 g 50 ml of 0.1M 25 ml of NaOH solution given above - (A) 5.34 (B) 4.74 60 ml of NaOH solution given above - 0ES(C) 3.87 (D) 2.78 r 9. ndo bluo w (D) 8.57 (A) 5.43 (B) 11.96 hiov (C) 2.04 (Q.10-Q.11) In a one litre of an aqueous solution containing 0.020 mole of propionic acid having K = 1.8 x 10-5 at 25°C. How many moles of sodium propionate should be added in the above solution to obtain a buffer solution of pH = 4.74 10. (C) 0.025 mole (D) 0.02 mole (B) 0.15 mole (A) 0.25 mole 11. When 0.010 mole of HOCI dissolved in above buffer solution, pH of the solution will be - (Use : log 3 = 0.477) (C) 4.75 (D) 3.87 (B) 2 263 20 mL of 0.1 M HCI is added at 25°C. If pK, (HCN) = 8.5 the pH of the

asked Jan 29, 2020 by balaji.thirumalai

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