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10 Nov 2019
What is the pH of a buffer system made by dissolving 10.70 grams of NH_4Cl and 20.00 mL of 12.0 M NH_3 in enough water to make 1.000 L of solution? K_b = 1.8 times 10^-5 for NH_3. TRIS {(HOCH_2)_3 CNH_2} is one of the most common buffers used in biochemistry. A solution is prepared by adding enough TRIS and 12 M HCl(aq) to give 1.00 L of solution with [TRIS] = 0.30 M and [TRISH+] = 0.60 M. What is the pH of this buffered system if the pK_b is 5.92?
What is the pH of a buffer system made by dissolving 10.70 grams of NH_4Cl and 20.00 mL of 12.0 M NH_3 in enough water to make 1.000 L of solution? K_b = 1.8 times 10^-5 for NH_3. TRIS {(HOCH_2)_3 CNH_2} is one of the most common buffers used in biochemistry. A solution is prepared by adding enough TRIS and 12 M HCl(aq) to give 1.00 L of solution with [TRIS] = 0.30 M and [TRISH+] = 0.60 M. What is the pH of this buffered system if the pK_b is 5.92?
Deanna HettingerLv2
11 May 2019