How many grams of dry NH4Cl nned to be added to 2.50 L of a 0.200 M solution of ammonia, NH3, to prepare a buffer solution that has a pH of 8.69? Kb for ammonia is 1.8 x 10^-5.

Q: buffer solution is composed of 1.501.50 mol of acid and 7.757.75 mol of the conjugate base. If the…

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Q: A buffer solution is made that is 0.310 M HCN and 0.316 M in NaCN. If Ka for HCN is 4.00 × 10-¹0,…

A: Given,molarity of HCN = 0.316 Mmolarity of NaCN = 0.316 MKa of HCN = 4.00 x 10-10 moles of NaOH =…

Q: How many moles of sodium hydroxide would have to be added to 225 mL of a 0.404 M nitrous acid…

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Q: A 500.-mL solution consists of 0.050 mol of solid NaOH and 0.13 mol of hypochlorous acid (HClO;…

A: Concentration: it is expressed in molarity (M) Molarity - ratio of number of moles of solute to the…

Q: An organic acid(HA) has a molecular weight of 100. g mol^-1, a Kow=5.6 and a Ka=2.7x10^-2. If…

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Q: A 100. mL sample of 0.10 M HCl is mixed with 50. mL of 0.14 M NH3. What is the resulting pH? (Kb for…

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Q: Assume you titrate 20.0 mL of 0.11 M NH3 with 0.10 M HCl.          (a)  What is the pH of the NH3…

A: Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for…

Q: Calculate the pH of a buffer solution prepared by dissolving 0,48 mole of sodium fluoride (NaF) and…

A: Buffer solution is a type of solution which resist the pH change when small amount of acid or base…

Q: A buffer solution is made that is 0.409 M H2S and 0.409 M in NaHS. If Ka1 for H2S is 1.00x10^-7,…

A: Given: Concentration of H2S = 0.409 M Concentration of NaHS = 0.409 M Ka of H2S = 1.0×10-7 moles of…

Q: A buffer is prepared by adding 5.0 g of ammonia, NH3, and 20.0 g of ammonium chloride, NH4Cl, to…

A: Use Henderson Hassebalch equation to find pH for this buffer,pH = pKa + log NH3NH4Cl   Given…

Q: The active ingredient in aspirin is acetylsalicylic acid. A 2.19 g sample of acetylsalicylic acid…

A: The number of moles of acetylic salicylic acid and sodium hydroxide reacted are equal because…

Q: A buffer solution is made that is 0.415 M in CH3COOH and 0.415 M in CH3COO- . (1) If Ka for CH3COOH…

A: Henderson-Hasselbach equation is,                                 Find pKa from Ka.…

Q: A conjugate acid (HA) and its conjugate base (A") is mixed to make buffer solutions. When 0.50 mol…

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Q: sodium dihydrogen phosphate monohydrate, ?a=6.23×10−8, 2.00 M disodium hydrogen phosphate…

A: The acid given is sodium dihydrogen phosphate monohydrate i.e. NaH2PO4·H2O. And the conjugate base…