(4d-101) Which two of the following combinations would make functional buffer systems? HF and NaF NaCl and HCI H2S04 and NaHSO4 HNO2 and NaNO2 HCland NaOH HCl and HBr H2SO3 and NaHSO4

Q: b In order for HOCIKOCI buffer to have pH = pKq, would you add HC1 or NaOH? pK2 = 7.46 pH = 8.1 O…

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Q: What is the pH of a grapefruit that contains 0.007 M citric acid solution (C6H8O7)? CGH807(aq) +…

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Q: that occurs when a small amount of strong acid, H+, is added to a CH3COOH/NaCH3COO buffer solution?…

A: Buffer is the solution of mixture of weak acid/weak base with its salt of strong base/strong acid

Q: 10 10 mL 0.05 M NAOH Hd

A: Henderson's equation: pH = pKa + log[salt]/[acid] at equivalent point: [salt] = [acid] pH = pKa

Q: What is the hydronium and hydroxide ion concentration of pure water at 100°C? (Kw = 49 x 10-14)

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Q: Calculate (OH ] and pH for each of the following solutions. (a) 0.0083 M NaOH [OH"] = 2.081 X M pH =…

A: pOH  = -log [OH-] pH + pOH = 14  pH = 14- pOH

Q: What is the pH of a 0.10 M H2C2O4 solution that has the stepwise dissociation constants Ka1 = 5.9 ×…

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Q: Kimberly went to the drug store to buy penicilin. They were wondering what is the pH of a 100 mL…

A: We will ionize acid and then using ionization constant we will calculate pH of solution.

Q: 2. What is [OH-] in a solution of 0.125 MCH3NH₂ and 0.130 MCH3NH3CI? CH3NH2(aq) +H₂O) CH3NH3(aq) +OH…

A: Given: The concentration of CH3NH2 = 0.125 M The concentration of CH3NH3Cl = 0.130 M Kb = 4.4×10-4…

Q: Calculate the pH of a 0.020 M solution of phenylacetic acid, C6H5CH2COOH. What will be the pH if the…

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Q: The pka of HCN = 9.31. Which solution, when added to 10.0 mL of 0.10 M HCN, has a pH of 9.31? O 10.0…

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Q: You have 0.500 L of an 0.250 M acetate buffer solution (i.e. [HC2H;O2] + [C2H3O2] = 0.250 M) at pH…

A: pH is used to determine the concentration of hydronium ion.

Q: What is the pH of a 0.03 M solution of Sodium benzoate (C6H5COONa)? Ka = 6.6 x10-5 for benzoic acid…

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Q: (a) Please write the conjugate bases of the following acids. (1) CH3COOH - CH3CO0 (Ka = 1.76 x 10-5)…

A: Required information from previous parts: From part-(c), the desired ration of conjugate base to…

Q: at 95 ℃ water has an autoionization constant (Kw) of 4.518 X 10-13. Determine the ph of pure water…

A: Given :- Kw at 95°C = 4.518 × 10-13  To determine :- pH of pure water at 95°C

Q: What is the pH of a solution containing 0.30 M CH₃COONa and 0.10 M CH₃COOH? The Ka of CH₃COOH is 1.8…

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Q: Calculate the [H+], [H2PO4-], [HPO4-2], [PO4-3] and [H3PO4] in a 0.10 M solution of phosphoric acid.…

A: Answer:

Q: culate the hydronium ion concentration (in M) of a blood sample with a pOH of 7.8.

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Q: Calculate the pH of each of the following buffered solutions: Ka(HC2H3O2) = 1.8 x 10-5 0.13 M…

A: Acetic acid is a weak monoprotic acid. And since the pH of monoprotic acid buffer is given by…

Q: The pH of a 0.25 M aqueous solution of HF at 25°C is 2.03. What is the value of Ka for HF?     3.7…

A: pH gives the information about the acidity or alkalinity of a solution. pH is determined from the…

Q: 1. What is the pH of a solution consisting of 0.85M HC2H3O2 and 0.60M NaC2H3O2? Given: Ka of…

A: Given-1)HC2H3O2=0.85 M   NaC2H3)2=0.60 M   KaHC2H3O2=1.8+10-52)NH4Cl=0.20 M   NH3=20 MKb=1.8+10-5

Q: Which of the following solutions represents a good buffer system? Select one: a. a solution that is…

A: Buffer solution/system: A buffer system has pH resistance. The pH of the buffer solution is not…

Q: What is the pH of a solution that is 0.33 M CH3NH2 (methylamine) and 0.52 M CH3NH3Cl (methylammonium…

A: Since we have weak base CH3NH2 and its conjugate acid CH3NH3Cl in the solution. Hence the solution…

Q: What is the pH of a solution consisting of 0.20M NH4Cl and 2.0 NH3. Kb of NH3= 1.8 x 10-5

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Q: 9.Circle the pH value for each of the following 0.1 M solutions: a. NH,CI 1 between 1&7 between 7&13…

A: Given : Concentration of salts are 0.1 M. pH of any salt solution is decided by the nature of the…

Q: What is the pH of a solution containing 1.50 M Acetic acid (CH3COOH) (Ka = 1.8 X 10-5) and 2.5 M…

A: Solution, which resist in pH change value upon addition of small amount of strong acid or base (less…

Q: What masses of dimethylamine and dimethylammonium chloride do you need to prepare 5.00 Lof pH-12.00…

A: Given : pH of buffer = 12.00  Volume of solution = 5.00 L And total concentration of base and its…

Q: (4d-202) A buffer solution is made by mixing H3PO4 and NaH2PO4 in water. How does this buffer system…

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Q: What is pOH of a solution consisting of 1.05 M NH3 and 0.98 M NH4NO3? Ka of NH4 + is 5.8 x 10-10…

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Q: Which of the following can be a buffer system? a. H3PO4- or HPO2- b. NH3 or NH- c. CH3COOH or…

A: BUffer is a solution which resist a change in its pH upon addiiton of a base or an acid.

Q: a. NH4+ Cl－ b. CH3COOH, HC1 c. CH3COOH, CH3COONa +

A: A buffer solution is an aqueous mixture of weak acid or base and salt. It resists the change of pH…

Q: Cyanic acid (HCNO) has Ka = 2.0 x 10-4 What is the conjugate base and its Kb value?

A: A conjugate acid is formed by the removal of -OH  from a base and a conjugate base is formed by the…

Q: What is the pH of a 0.1055 M CH3COOH solution (Ka = 1.75 × 10−5)? 2.770…

A: Given: Ka for CH3COOH= 1.75 × 10−5 The concentration of CH3COOH, (C) =  0.1055 M.

Q: You have 0.500 L of an 0.250 M acetate buffer solution (i.e. [HC2H;O2] + [C2H3O2¯] = 0.250 M) at pH…

A: Given data is: pH of buffer = 3.5 Let Concentration of [HC2H3O2]  be x M and concentration of…

Q: 1d2 Describe the effect on pH (increase, decrease, or no change) that results from each of the…

A: Addition of conjugate acid or base affect the pH of already prepared solution. If it affects the…

Q: What is the pH of the sodium lactate solution? C3H5O3 + H₂O = HC3H5O3 + OH- [C3H5O3] = 3.22 × 10-¹ M…

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Q: Suppose you have just added 50.0 ml of a solution containing 0.0400 moles of weak acid HA to 500.0…

A: When weak acid is titrated with strong base, the resultant solutionwill have unionized acid and salt…

Q: 7. If NaH2PO4 is added to water, what other compound or compounds could also be added in order to…

A: “Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: Calculate PH for a 0.25 liter solution containing 3.25 gm of potassium cyanide(KCN) , know that…

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Q: Identify 2 active species in the following buffer systems HCN & KCN H3PO4 & NaH2PO4 H2CO3 & KHCO3…

A: Buffer solution: The buffer solution is an aqueous solution consisting of a mixture of a weak acid…

Q: Calculate the pH of 2.8 x 10^-4 M Ba(OH)2. 2. Calculate the pH of a 0.26 M methylamine solution. Kb…

A: 1. Calculate the pH of 2.8 x 10-4 M Ba(OH)2. 2. Calculate the pH of a 0.26 M methylamine solution.…

Q: What is the pH of a 0.2 M solution of each of the following (for this question, assume only the…

A: Given,  The pH of 0.20 M solution of Acetic acid (CH3COOH) Ka = 1.8 x 10^-5 Sodium acetate…

Q: Calculate the pH of the following buffered solutions made with 0.50 M C2H5NH2, ethanamine (kb is 4.5…

A: Given that

Q: Which of the following combinations of acids and conjugate bases would be the best to create a pH =…

A: A buffer solution formed by the combination of weak acid and its conjugate base or weak base and its…

Q: What is the pH of a grapefruit that contains 0.007 M citric acid solution (CgHgO7)? CSH307(aq) +…

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Q: 12. Which of the following liquids has the weakest IMFA? O CH:OH О но CS2 H20

A: IMFA also called intermolecular forces of attraction are the forces acting between two similar…

Q: What is the pH of a solution in which 21.65 mL of 0.28 M HNO3 is added to 9.95 mL of 0.067 M…

A: HNO3 is strong acid Ba(OH)2 is strong base.

Q: the solution of 2.50 L of a 0.250M CH3CO2H has a pH of 4.20, what is the pH if you add 20.0 mL of…

A: At equilibrium,                              CH3COOH  ⇌  CH3COO-  +  H+  The pH of this solution can…

Q: What is the pH of a solution that is 0.11 M CH3NH2 (methylamine) and 0.15 M CH3NH3Cl (methylammonium…

A: Since the solution is having weak base CH3NH2 and its conjugate acid salt CH3NH3Cl  Hence the…