If the same 5.00 mL of a 0.5M HCl is added to 150.0 mL of MOPS...
If the same 5.00 mL of a 0.5M HCl is added to 150.0 mL of MOPS buffer. The buffer contains 0.500M MOPS-H and 0.500M MOPS. Calculate the new pH after the acid was added. MOPS pKa =7.2
Homework Answers
Referring to question 1, if the same 15.00mL 0.55M NaOH is now added to 150.0 mL...
Referring to question 1, if the same 15.00mL 0.55M NaOH is now added to 150.0 mL of a phosphate buffer (0.45M H2PO4-/0.45M HPO42-). pKa of phosphate buffer = 7.2 Calculate the pH if 15.00mL of 0.55M NaOH is added to 150.0mL of water.
If you have 140. mL of a 0.100 M MOPS buffer at pH 7.20 and you...
If you have 140. mL of a 0.100 M MOPS buffer at pH 7.20 and you add 2.00 mL of 1.00 M HCl, what will be the new pH? (The pKa of MOPS is 7.20.)
MOPS – 3(N-morpholino)propanesulfonic acid (structure below) is a common buffer used in biochemistry and biology. Consid...
MOPS – 3(N-morpholino)propanesulfonic acid (structure below) is a common buffer used in biochemistry and biology. Consider a 0.100 M MOPS/Na+•(MOPS-) buffer solution (200.0 mL). pKa (MOPS) = 7.20 (0.1 M MOPS AND 0.1 M Na+ MOPS-) a. Calculate the pH of the buffer. b. Calculate the pH when 1.0 mL of 1.0 M NaOH is added to the buffer. c. Calculate the pH when 5.0 mL of 1.0 M NaOH is added to the buffer.
3. (a) Calculate the change in pH when 5.00 mL of 0.100 M HCl(aq) is added...
3. (a) Calculate the change in pH when 5.00 mL of 0.100 M HCl(aq) is added to 100.0 mL of a buffer solution that is 0.100 M in NH3(aq) and 0.100 M in NH4Cl(aq). (b) Calculate the change in pH when 5.00 mL of 0.100 M NaOH(aq) is added to the original buffer solution.
A buffer is created by combining 150.0 mL of 0.15M methylamine (CH3NH2) with 150.0 mL of...
A buffer is created by combining 150.0 mL of 0.15M methylamine (CH3NH2) with 150.0 mL of 0.20M of its conjugate acid (CH,NH4+). The K, value for methylamine is 4.37 x 104. a) Calculate the pH of this buffer. b) How many grams of NaOH would need to be added to raise the pH of this buffer to 11.00?
3. MOPS-3(N-morpholino)propanesulfonic acid (structure below) is a common buffer used in biochemistry and biology. Consider a...
3. MOPS-3(N-morpholino)propanesulfonic acid (structure below) is a common buffer used in biochemistry and biology. Consider a 0.100 M MOPS/Na-(MOPS) buffer solution (200.0 mL). pk. (MOPS) = 7.20 a. Calculate the pH of the buffer. b. Calculate the pH when 1.0 mL of 1.0 M NaOH is added to the buffer. C. Calculate the pH when 5.0 mL of 1.0 M NaOH is added to the buffer. d. Calculate the pH when 10.0 mL of 1.0 M NaOH is added to...
Calculate the pH of a buffer solution prepared by mixing 75 mL of 1.0 M lactic...
Calculate the pH of a buffer solution prepared by mixing 75 mL of 1.0 M lactic acid and 25 mL of a 1.0M sodium lactate. (pka of lactic acid = 3.86) Calculate the change in pH that occurs when 0.01moles of OH are added to a 1L buffered solution that contains 0.5M acetic acid (HC_2H_3O_2) and 0.5M acetate ion (C_2H_3O_2). Acetic acid pka = 4.76.
Calculate the volume (in mL) of 0.170 M NaOH that must be added to 273 mL...
Calculate the volume (in mL) of 0.170 M NaOH that must be added to 273 mL of 0.0433 M 3-(N-Morpholino)propanesulfonic acid (MOPS) to give the solution a pH of 7.55. The pKa of MOPS = 7.18.
Calculate the volume (in mL) of 0.170 M NaOH that must be added to 285 mL...
Calculate the volume (in mL) of 0.170 M NaOH that must be added to 285 mL of 0.0453 M 3-(N-Morpholino)propanesulfonic acid (MOPS) to give the solution a pH of 7.55. The pKa of MOPS = 7.18.
A beaker with 110 mL of an acetic acid buffer with a pH of 5.00 is...
A beaker with 110 mL of an acetic acid buffer with a pH of 5.00 is sitting on a benchtop. The total molarity of acid and conjugate base in this buffer is 0.100 M. A student adds 8.80 mL of a 0.400 MM HCl solution to the beaker. How much will the pH change? The pKa of acetic acid is 4.760.
3. (a) Calculate the change in pH when 5.00 mL of 0.100 M HCl(aq) is added to 100.0 mL of a buffer solution that is 0.100 M in NH3(aq) and 0.100 M in NH4Cl(aq). (b) Calculate the change in pH when 5.00 mL of 0.100 M NaOH(aq) is added to the original buffer solution.
A buffer is created by combining 150.0 mL of 0.15M methylamine (CH3NH2) with 150.0 mL of 0.20M of its conjugate acid (CH,NH4+). The K, value for methylamine is 4.37 x 104. a) Calculate the pH of this buffer. b) How many grams of NaOH would need to be added to raise the pH of this buffer to 11.00?
3. MOPS-3(N-morpholino)propanesulfonic acid (structure below) is a common buffer used in biochemistry and biology. Consider a 0.100 M MOPS/Na-(MOPS) buffer solution (200.0 mL). pk. (MOPS) = 7.20 a. Calculate the pH of the buffer. b. Calculate the pH when 1.0 mL of 1.0 M NaOH is added to the buffer. C. Calculate the pH when 5.0 mL of 1.0 M NaOH is added to the buffer. d. Calculate the pH when 10.0 mL of 1.0 M NaOH is added to...
Calculate the pH of a buffer solution prepared by mixing 75 mL of 1.0 M lactic acid and 25 mL of a 1.0M sodium lactate. (pka of lactic acid = 3.86) Calculate the change in pH that occurs when 0.01moles of OH are added to a 1L buffered solution that contains 0.5M acetic acid (HC_2H_3O_2) and 0.5M acetate ion (C_2H_3O_2). Acetic acid pka = 4.76.
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