Benzoic acid, HC7H5O2, and its salts are used as food preservatives. Ka for benzoic acid is 6,3 x 10–5. A solution of sodium benzoate, NaC7H5O2, in water has a concentration of 0,015 mol.dm–3. What is the pH of this solution?

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Q: Benzoic acid, HC7H5O2, and its salts are used as food preservatives. Ka for benzoic acid is 6,3 x…

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Q: Find the pH of a 0.20 M aqueous solution of benzoic acid, for which Ka = 6.33 x 10-5

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Q: what is the ph of a 0.85 M solution of pyridine (C5H5N, Kb = 1.70 x 10 ^-9)

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Q: Calculate the pH of a 0.75 mol L─3 solution of ethanoic acid at 298 K. Given Ka = 1.7 × 10─5

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Q: What is the pH of a 0.0310 M solution of hydrocyanic acid, HCN (Ka = 4.9 x 10-10)?

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Q: What is the pH of a 0.0360 M solution of hydrocyanic acid, HCN (Ka = 4.9 x 10-10)?

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Q: 6. What is the pH of a 0.25 M solution of methylamine hydrochloride (CH3NH3CI)? Kb for methyl amine…

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Q: The acid dissociation constant K, of alloxanic acid (HC,H;N,0,) is 2.24 x 10. Calculate the pH of a…

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Q: What is the pH of 0.273 M trimethylammonium iodide, (CH3)3NHI? The Kb of trimethylamine, (CH3)3N, is…

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Q: Water is frequently disinfected with chlorine gas, forming hypochlorous acid (HOCI), which partially…

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Q: Calculate the pH of 0.17 M propanoic acid CH3CH2COOH, found in the sample analysis of sewage water.…

A: We have CH3CH2COOH →CH3CH2COO- + H+ Concentration of propanoic = 0.17 M  Ka=1.3 x 10-5

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