The pH of blood plasma is 7.40, and is maintained by a carbonic acid/hydrogen carbonate buffer system. What is the molarity of sodium bicarbonate (NaHCO3) (diluted in 500 mL water ) that should be added to a 500 mL solution of 0.250 M H2CO3 to maintain the solution at pH of 7.40? (pKa = 6.35)

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Q: buffer

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Q: As mentioned, the bicarbonate buffer works to maintain your body at a certain pH level. If a…

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Q: Which of the following combination can be used to prepare a buffer with a pH of 3?     NaH2PO4 and…

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Q: Phosphoric acid is a triprotic acid (Kal = 6.9 x 10-³, Ka2 = 6.2 x 10-8, and K₁3 = 4.8 x 10-¹3). To…

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Q: What is the pH of a solution containing 0.327 mol L-1 of HCl and 1.041 mol L-1 of a weak acid with…

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Q: 5.) A typical aspirin contains 324 mg of aspirin (HC,H,O4) with Ka = 2.8 x 104. If you dissolve two…

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Q: What is the pH of the solution formed when 1.13 g of diethylammonium chloride ((CH3CH2)2NH2)+Cl- is…

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Q: Calculate pH of acetic buffer (pKa=4.76) if C(CH3COOH)=C(CH3COONA)=0.1 mol/l

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A: Concentration of CH3COOH=2.0M  Concentration of CH3COOH=2.0M  pKa of CH3COOH=4.74

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Q: From the following choose the most appropriate weak base (when added to its conjugate acid) for…

A: Solution

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Q: what is the concentration of Tris molecules in the basic

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Q: You have 0.100 M solutions of acetic acid (pK₁ = 4.76) and sodium acetate. If you wanted to prepare…

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