The Handbook of Chemistry and Physics gives solubilities of the following compounds in grams per 100 mL of water. Because these compounds are only slightly soluble, assume that the volume does not change on dissolution and calculate the solubility product for each. (a) BaSeO4, 0.0118 g/100 mL
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The Handbook of Chemistry and Physics gives solubilities of the following compounds in grams per 100 mL of water. Because these compounds are only slightly soluble, assume that the volume does not change on dissolution and calculate the solubility product for each.
(a) BaSeO4, 0.0118 g/100 mL
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- Consider the titration of 36.0 mL of 0.123 M ammonia with 0.0766 M HCl. (See the Acid-Base Table attached.) (a) How many mL of HCl are required to reach the equivalence point?57.8 mL(b) What is the pH at the equivalence point? 5.29(c) What is the pH of the solution after the addition of 17.2 mL of acid? (d) What is the pH of the solution after the addition of 84.3 mL of acid? (only need help witn c and d)Ammonia is a convenient buffer system in the slightly basic range. (a) What is the pH of a buffer solution containing 24 g of NH4Cl dissolved in 1.00 L of 0.879 M NH3? pH = 9.5521 (b) How many moles of acid are required to change the pH of this solution by 0.06 pH units? i 0.23 pH = (c) Suppose 4.8 mL of 12.9 M HCI solution is added to 362 mL of the solution of Part (a). Calculate the new pH. mol i 9.08a) What is the pH of a buffer solution that is made by dissolving 125.5 g of sodium benzoate and 166.9g of benzoic acid in 500 mL of water? (b) What is the pH if you added 26.7 mL of 2.22 M NaOH to 254 mL of the buffer solution from above? (c) What is the pH if you added 32.8 mL of 3.36 M HCl to 354 mL of the buffer solution from above? Dont
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