The pKa values of some hypothetical acids (HX, HY, HZ, HG) are shown below: HX pka=2.50,  HY pKa=4.72,   HZ  pKa=1.87,   HG  pKa=5.67  Which of the following conjugate bases will be the weakest?  a) X-   b)Y-   c)Z-   d)G-    e)they all have the same strength P.S could you please tell me which concept it is or a topic?

Q: acid/conjugate base systems shown below. Conjugate Weak Acid pKa Base C,0,- HPO, HC,04 6.4x105 4.19…

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Q: 9. If only 1.6% of 0.20 M solution of a weak base was ionized. Calculate its Kb value? *

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Q: How many grams of Na2CO3 (FM 105.99) should be mixed with 1.70 g of NaHCO3 (FM 84.01) to produce 100…

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Q: MISSED THIS? Read Section 18.2 (Pages 788 - 799) ; Watch KCV 18.2B, IWES 18.2, 18.3. A 100.0-mL…

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A: Answer: 5.02

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Q: Which of the following represents the relative fraction of species as a function of pH for the…

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Q: en can you conclude that a buffer solution has achieved its m When pH is less than the pka. When the…

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Q: What is the weight NaCH3COO of that must be added to 750.0 mL of 0.180 M acetic acid to form a pH =…

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Q: The pka values of a weak acid is directly proportional to basicity. O True O False

A: The given statement is True. It can be explained as below:

Q: If a 0.8M solution of weak acid, HA, has a pH = 2.8, calculate the Ka of the acid.

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Q: Review I Censtanta I Periodic Tab Learning Goal: To understand the relation between the strength of…

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Q: 13. The figure below shows three acids HX, HY and HZ, (water molecules are omitted for clarity).…

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Q: Construct the expression for Ka for the weak acid, HCN. HCN(aq) + H2O(1)=H;O*(aq) + CN (aq) 1 Based…

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Q: Which of the following is true about acids and bases? A. When bases ionize, they donate protons.…

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Q: Calculate the pKa for the weak acids that have the ff. Ka values. a. 2.3 x 10 -6 b. 1.9 x 10 -8 C.…

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Q: A 0.050 M monoprotic weak acid solution has a pH of 2.40. Calculate the pKa of the acid. Express…

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Q: The Kb of HONH2 is 1.1x10^-8 a. calculate the pH and percent dissociation of a solution…

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Q: If I have C5H5N  0.5 M initial and pH=8.05 what does Kb= Answer: 2.5E-12 How do I get to that…

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Q: If the Kb value for a weak base is 2.6*10^-4, what is the value of its conjugate acid?

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Q: Which of the following approximate pKa ranges for the following acids is correct?  You don't need a…

A: We know that:  pH = - log[H+]  Similarly,  pKa = - log[Ka] where Ka is dissociation constant of acid

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Q: NHINHS Ammonium ion + amnoonia 4 Buffer syatem ma. Making a buffen r solution with D-10M & 15.0mL…

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Q: A.) The value of Ka for hydrocyanic acid is 4.00×10-10. What is the value of Kb, for its conjugate…

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Q: Base: Sodium Acetate pka: 4.76 *pH value for conjugate acid (Acetic Acid) Soln. #1 Weak Base Strong…

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