Question
A student needs to prepare a lactic acid buffer at a pH of 4.85. The student...
A student needs to prepare a lactic acid buffer at a pH of 4.85. The student has available lactic acid (pKa = 4.20), a 0.830 M KOH solution and a 0.830 M HCl solution. Will the student need to add KOH or HCl to the lactic acid in order to prepare the buffer?
Also
Calculate the volume (in mL) of the solution that should be added to 3.166 g of lactic acid (FW 122.12 g/mol, pKa = 4.20) to give a pH of 4.85.
Homework Answers
Answer #1
Not the answer you're looking for?
Similar Questions
You need to prepare an acetate buffer of pH 6.33 from a 0.727 M acetic acid...
You need to prepare an acetate buffer of pH 6.33 from a 0.727 M
acetic acid solution and a 2.16 M KOH solution. If you have 475 mL
of the acetic acid solution, how many milliliters of the KOH
solution do you need to add to make a buffer of pH 6.33? The pKa of
acetic acid is 4.76.
You need to prepare an acetate buffer of pH 5.53 from a 0.842 M acetic acid...
You need to prepare an acetate buffer of pH 5.53 from a 0.842 M
acetic acid solution and a 2.60 M KOH solution. If you have 975 mL
of the acetic acid solution, how many milliliters of the KOH
solution do you need to add to make a buffer of pH 5.53? The pKa of
acetic acid is 4.76.
You need to prepare an acetate buffer of pH 6.50 from a 0.644 M acetic acid...
You need to prepare an acetate buffer of pH 6.50 from a 0.644 M
acetic acid solution and a 2.75 M KOH solution. If you have 575 mL
of the acetic acid solution, how many milliliters of the KOH
solution do you need to add to make a buffer of pH 6.50? The pKa of
acetic acid is 4.76.
You need to prepare an acetate buffer of pH 6.36 from a 0.714 M acetic acid...
You need to prepare an acetate buffer of pH 6.36 from a 0.714 M
acetic acid solution and a 2.69 M KOH solution. If you have 475 mL
of the acetic acid solution, how many milliliters of the KOH
solution do you need to add to make a buffer of pH 6.36? The pKa of
acetic acid is 4.76.
You need to prepare an acetate buffer of pH 6.37 from a 0.667 M acetic acid...
You need to prepare an acetate buffer of pH 6.37 from a 0.667 M
acetic acid solution and a 2.84 M KOH solution. If you have 675 mL
of the acetic acid solution, how many milliliters of the KOH
solution do you need to add to make a buffer of pH 6.37? The pKa of
acetic acid is 4.76.
You need to prepare an acetate buffer of pH 6.12 from a 0.755 M acetic acid...
You need to prepare an acetate buffer of pH 6.12 from a 0.755 M
acetic acid solution and a 2.43 M KOH solution. If you have 475 mL
of the acetic acid solution, how many milliliters of the KOH
solution do you need to add to make a buffer of pH 6.12? The pKa of
acetic acid is 4.76.
The pH of a 1.0 L solution of 0.10 M lactic acid is 4.34. What is...
The pH of a 1.0 L solution of 0.10 M lactic acid is 4.34. What
is the new pH of the solution if 40 mL of 1.0 M HCl is added? The
pKa of lactic acid is 3.86.
You need to prepare an acetate buffer of pH 5.64 from a 0.747 M acetic acid...
You need to prepare an acetate buffer of pH 5.64 from a 0.747 M
acetic acid solution and a 2.86 M KOH solution. If you have 475 mL
of the acetic acid solution, how many milliliters of the KOH
solution do you need to add to make a bufer of pH 5.64? The pKa of
acetic acid is 4.76.
You need to prepare an acetate buffer of pH 5.80 from a 0.869 M acetic acid...
You need to prepare an acetate buffer of pH 5.80 from a 0.869 M
acetic acid solution and a 2.06 M KOH solution. If you have 475 mL
of the acetic acid solution, how many milliliters of the KOH
solution do you need to add to make a bufer of pH 5.80? The pKa of
acetic acid is 4.76.
You need to prepare an acetate buffer of pH 5.79 from a 0.645 M acetic acid...
You need to prepare an acetate buffer of pH 5.79 from a 0.645 M
acetic acid solution and a 2.53 M KOH solution. If you have 625 mL
of the acetic acid solution, how many milliliters of the KOH
solution do you need to add to make a bufer of pH 5.79? The pKa of
acetic acid is 4.76.
ADVERTISEMENT
Need Online Homework Help?
Get Answers For Free
Most questions answered within 1 hours.
ADVERTISEMENT
Active Questions
asked 15 minutes ago
asked 28 minutes ago
asked 32 minutes ago
asked 56 minutes ago
asked 1 hour ago
asked 1 hour ago
asked 1 hour ago
asked 1 hour ago
asked 1 hour ago
asked 2 hours ago
asked 2 hours ago
asked 2 hours ago