determine the pKa of the acid and ph of the buffer sol'n of a buffer mixed with 0.1 M tris and 0.5 M chloine salt having dissociation constant of 1.072x10^-6.
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determine the pKa of the acid and ph of the buffer sol'n of a buffer mixed with 0.1 M tris and 0.5 M chloine salt having dissociation constant of 1.072x10^-6.
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Solved in 3 steps
- Calculate the cocentrations of acetic acid (pKa = 4.76) and sodium acetate necessary to prepare a 0.2 M buffer solution at pH 5.0.Calculate pH of buffer prepared by mixing; 10ml of 0.10M of CH3COOH and 20ml of 0.10M of CH3COONa.Describe the preparation of 2.00 L of 0.100 M glycine buffer, pH 9.0, from glycine and 1.00 M NaOH. What mass of glycine is required, and what volume of 1.00 NaOH is required? The appropriate pKa of glycine is 9.6
- Draw titration curve for compound X when NaOH equivalence(s) is/are added. Indicate the buffering region(s) with a box.Calculate the pH of a mixture of 0.25 M acetic acid and 0.20 M sodium acetate. The pKa of acetic acid is 4.76.Calculate the volume of TAE buffer that you will need to prepare a 100ml solution of 1X strength if you only have a 50X concentrated solution available.
- Calculate the number of milliliters (mL) of a solution which contains 16 g of BaCl2 per liter which will be required to precipitate the sulfur as BaSO4 in a 0.60 g sample that contains 12% S.Calculate the pH of a buffer that contains 0.15 M MOPS anionic form and 0.25M MOPS zwitterion. The pKa is 7.2Consider a buffer solution that contains 0.55 M NH2CH2CO2H and 0.35 M NH2CH2CO2Na. pKa(NH2CH2CO2H)=9.88. a. Calculate its pH. b. Calculate the change in pH if 0.155 g of solid NaOH is added to 250 mL of this solution. c. If the acceptable buffer range of the solution is ±0.10 pH units, calculate how many moles of H3O+ can be neutralized by 250 mL of the initial buffer.
- Calculate the molarity of dilute Ca(OH)2 solution if the titration of 30.00 mL of 0.05231 M HCl required 24.76 mL of the acid. An 0.2500 g hydroxide tablet sample submitted in the lab used 36.75 mL during titration. How much is the hydroxide in mg present?Calculate acetic acid when it requires 44.82mL of a 0.145M NaOH solution to titrate 34.95 mL of our unknown acetic acidUsing this data, calculate the molarity of the oxalic acid standard solution.