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Calculate the pH of 1.5 M solution of hydroxylamine, NH2OH, at 25°C. Kb= 9.1 x 10-9
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- Calculate the pH of a 2.0 x 10–3 M solution of pyridine (C5H5N). Kb = 1.7 x 10–9A typical aspirin tablet contains 325 mg acetylsalicylic acid. Calculate the pH of a solution that is prepared by dissolving 4 aspirin tablets in enough water to make a 280 mL solution. Assume the aspirin tablets are pure acetylsalicylic acid, K₂ = 3.3 x 10-4. Acetylsalicylic acid has a molar mass of 180 g/mol. pH =The Kw of water at 100°C is 5.62 x 10-13. What is the pH of water at this temperature?
- Determine the pH of a 0.18 M solution of pyridinium nitrate (C5H5NHNO3) at 25 ° C. [Pyridinium nitrate dissociates in water to give pyridinium ions (C5H5NH+), the conjugate acid of pyridine (Kb = 1.7 × 10−9), and nitrate ions (NO3−).] pH =The acid dissociation constant K of boric acid (H₂BO3) is 5.8 × 10-¹0. Calculate the pH of a 5.6M solution of boric acid. Round your answer to 1 decimal place. pH = 0 X 615. What is the molarity of an aqueous NH solution that has a pH of 11.17? Kb= 1.8 x 10-5.
- Phthalic acid is a diprotic acid with ionization constants K₁1 = 1.12 x 10³ and K₁2= 3.90 x 106. Calculate the pH of a 0.284 M potassium hydrogen phthalate (KHP) solution. pH =Calculate the pH of an 0.025 M solution of NH3. NH3 is a weak base. Kb = 1.80 x 10-5Calculate the pH of a 0.600 M solution of methylamine CH3NH2. Kb = 4.4 x 10–4
- Determine the pH of a 0.21 M solution of pyridinium nitrate (C5H5NHNO3) at 25°C. [Pyridinium nitrate dissociates in water to give pyridinium ions (C5H5NH*), the conjugate acid of pyridine (K₁ = 1.7 × 107⁹), and nitrate ions (NO3).] pH = GCalculate the pH of a 0.591 M aqueous solution of benzoic acid (C6H₂COOH, K₂ = 6.3x10-5). pH =Consider the following data on some weak acids and weak bases: acid base Bo K. K, name formula name formula hydrofluoric acid HF 6.8 × 10 hydroxylamine HONH, |1.1 x 108 hypochlorous acid HСIO |3.0 х 10 methylamine CH;NH2|4.4 × 10 Use this data to rank the following solutions in order of increasing pH. In other words, select a '1' next to the solution that will have the lowest pH, a '2' next to the solution that will have the next lowest pH, and so on. solution pH 0.1 M NaF choose one v 0.1 М CНзNHзBr choose one 0.1 M NaI choose one ♥ 0.1 M HONH3CI choose one v