H2PO4] H,PO-) is A student needs to prepare a buffer made from H,PO4 and with pH...

Question

Question

Answer 1

Answer #1

Answer: - Page - 1 * Given => required PH of the buffer= 2.49 =) ka for H₂ POL = 7.50 x 10-3 =) Pka for H₂ PO4 = -log Ka = 2.

Answer 2

Similar Homework Help Questions

is H3PO4] A student needs to prepare a buffer made from H, PO, and with pH...

is H3PO4] A student needs to prepare a buffer made from H, PO, and with pH 2.340. If K, for HAPO, is 7.50 x 10", what ratio of H,PO-1 required? H3PO4 TH,PO,
What must be the ratio of (HPO4/H2PO4) be to prepare a buffer at (pH = 7.40)?...

What must be the ratio of (HPO4/H2PO4) be to prepare a buffer at (pH = 7.40)? (Use the Henderson-Hasselbalch Equation)
To have a buffer with a pH of 2.29, what volume of 0.0650 M NaOH must...

To have a buffer with a pH of 2.29, what volume of 0.0650 M NaOH must be added to 100 mL of 0.264 M H,PO? K. (H3PO4) = 7.5 x 10-3 K(H3PO4) = 6.2 x 10-8 K(H2PO4) = 3.6 x 10-13 Volume = ml

A student needs to make a buffer pH of 3.2. Which of the following buffer would...

A student needs to make a buffer pH of 3.2. Which of the following buffer would best work to buffer at pH 3.2? Weak acid Formic Acid Dihydrogen phosphate Propionic acid Tartaric acid Structure HCOOH Н2РО4 C2H5COOH H2C4H406 ka 1.8 X 104 6.2 x 10-8 1.3 x 10-5 1.0 x 10-3 pka 3.74 7.21 4.89 3.00 Formic Acid Dihydrogen phosphate Propionic acid Tartaric acid All of these
ted A buffer solution made from CH3COOH and CH3COOK has a pH of 4.37. If p...

ted A buffer solution made from CH3COOH and CH3COOK has a pH of 4.37. If p K, for CH3COOH is 4.74 , what is the [CH3C00"] in the buffer? [CH3COOH [CH, C00"] [CH3COOH The pK, value for H2CO3 is 6.38. What mole ratio of NaHCO3 to H2CO3 is needed to prepare a buffer with a pH of 6.11? [HCO3-) [H2CO3]
How would you prepare 1.10 L of a buffer with a pH of 7 30 from 0.300 M H,PO4 and 0.490 M NaOH? 1...

How would you prepare 1.10 L of a buffer with a pH of 7 30 from 0.300 M H,PO4 and 0.490 M NaOH? 1 pt 1 pt 1 pt 1 pt 1 pt (This problem requires values in your textbook's specific appendices, which you can access through the OWL42 MindTap Readet You should not use the OWLv2 References' Tables to answer this question as the values will not match) Mix□ー ] mL of0.300 M H3PO4 with□ ]mi, of0.490 M NaOH....

Buffer Practice 1.) You wish to prepare 750 mL of a buffer solution of pH =...

Buffer Practice 1.) You wish to prepare 750 mL of a buffer solution of pH = 7.00 and you decide to use NaH2PO4 as the acid, K2 = 6.2 x 10. You have on hand a 0.175 M solution of this acid. Kai = 7.5 x 103, Ka2 = 6.2 x 10-8, K3 = 4.2 x 10-13 a.) Calculate the pH of the NaH2PO4 solution. b.) Calculate the grams of Na2HPO4 that need to be added to 750 mL of...
A buffer made from potassium butyrate (KC4H702) and butyric acid (HC4H702) has a pH of 6.63. What is the ratio of bu...

A buffer made from potassium butyrate (KC4H702) and butyric acid (HC4H702) has a pH of 6.63. What is the ratio of butyrate to butyric acid knowing the K, of the butyric acid is 1.51 x 10%?
A student must make a buffer solution with a pH of 2.00. Determine which weak acid...

A student must make a buffer solution with a pH of 2.00. Determine which weak acid is the best option to make a buffer at the specified pH. O propionic acid, K = 1.34 x 10-6, 3.00 M O sodium bisulfate monohydrate, K = 1.20 x 10,3.00 M acetic acid, K, = 1.75 x 10-6, 5.00 M formic acid, K, = 1.77 x 10 , 2.00 M Determine which conjugate base is the best option to make a buffer at...

5. Phosphate serves as the intracellular buffer. Its ionization is shown below. H3PO4 + H,PO HPO...

5. Phosphate serves as the intracellular buffer. Its ionization is shown below. H3PO4 + H,PO HPO 2 + H + HPO.-- +PO3 + H PK, = 2.14 pK, = 6.86 PK, = 12.4 What ionic forms would be present in the cell at pH 7? A. All forms would be present. B. HPO and PO43- C. H PO, and HPO 2- D. HPO4 E. H2PO4