Question

In: Chemistry

Describe the preparation of 40 L 0.02 M phosphate buffer, pH 6.9 starting from Solid KH2PO4...

Describe the preparation of 40 L 0.02 M phosphate buffer, pH 6.9 starting from Solid KH2PO4 and K2HPO4

Solutions

Expert Solution

queen_honey_blossom answered 1 year ago
Next > < Previous

Related Solutions

Describe the preparation of 40 liters of 0.02 M phosphate buffer, pH 6.9, starting from solid...
Describe the preparation of 40 liters of 0.02 M phosphate buffer, pH 6.9, starting from solid Na3PO4 and 1M HCl. The answer is 131.2 g of Na3PO4 + 1330 mL 1M HCl. Please explain in detail how to get this answer.
Describe the preparation of 1L of a 0.1 M phosphate buffer at pH 8.0. The pKa...
Describe the preparation of 1L of a 0.1 M phosphate buffer at pH 8.0. The pKa for the buffer is 6.86
Describe the preparation of 3.00 L of 0.150 M glycine buffer, pH 8.1, from glycine and...
Describe the preparation of 3.00 L of 0.150 M glycine buffer, pH 8.1, from glycine and 1.00 M NaOH. What mass of glycine is required? The appropriate pKapKa of glycine is 9.6. Apply appropriate significant figures.
1. Using a 0.20 M phosphate buffer with a pH of 6.9, you add 0.80 mL...
1. Using a 0.20 M phosphate buffer with a pH of 6.9, you add 0.80 mL of 0.46 M HCl to 53 mL of the buffer. What is the new pH of the solution? (Enter your answer to three significant figures.) 2. Using a 0.20 M phosphate buffer with a pH of 6.9, you add 0.80 mL of 0.46 M NaOH to 53 mL of the buffer. What is the new pH of the solution? (Enter your answer to three...
Calculate the pH of a buffer that is 0.10 M in KH2PO4 and 0.050 M in...
Calculate the pH of a buffer that is 0.10 M in KH2PO4 and 0.050 M in Na2HPO4. What is the pH after adding 5.0 mL of 0.20 M HCl to 0.10 L of this buffer. The Ka value for H2PO4– is 6.32 × 10–8 or a pKa of 7.199
Prepare 100mL of a 0.1M potassium phosphate buffer of pH 6.5. You have K2HPO4 and KH2PO4...
Prepare 100mL of a 0.1M potassium phosphate buffer of pH 6.5. You have K2HPO4 and KH2PO4 in solid/salt form available to mix with water to create this buffer. Final answer must include how many grams of each salt to mix with how many mL of water to prepare the buffer. I started this problem and got as far as using the Henderson-Hasselbalch equation and that the ratio of [HPO42-] to [H2PO4-] is 0.48 moles to 1 mole.
Describe the preparation of: 1)2.20 L of 0.0850 M KMnO4 from the solid reagent. Dissolve _g...
Describe the preparation of: 1)2.20 L of 0.0850 M KMnO4 from the solid reagent. Dissolve _g KMnO4 in enough water to give a final volume of _L 2) 1.60 L of 0.270 M HClO4 , starting with an 8.00 M solution of the reagent. Take _ mL of the 8.00 M reagent and dilute to _ L with water. 3) 300 mL of a solution that is 0.0850 M in I-, starting with MgI2. Dissolve _ g MgI2 in enough...
1. Describe how you would prepare 1.50 L of a 0.500 M phosphate buffer with a...
1. Describe how you would prepare 1.50 L of a 0.500 M phosphate buffer with a pH of 7.5. (show work) 2. If 5.00 mL of 0.150 M HCl is added to 0.750 L of your buffer from (1), what will the new ph be? (show work) 3. If 10.00 mL of 1.50 M NaOH is added to 0.750 L of your buffer from (1), what will the new ph be? (show work)
a. Describe the preparation of 2 liters of 0.1 M Glutamate buffer, pH 10.0. You have...
a. Describe the preparation of 2 liters of 0.1 M Glutamate buffer, pH 10.0. You have available monosodium glutamate (MW=169), 0.5M NaOH and distilled water. Use pka of glutamate 9.67. b. Momentarily distracted by having a piece of old light fixture fall on your head, you add 10ml of the 0.5 HCL to the 2L of buffer. What would be the pH now
a. Describe the preparation of 2 liters of 0.1 M Glutamate buffer, pH 10.0. You have...
a. Describe the preparation of 2 liters of 0.1 M Glutamate buffer, pH 10.0. You have available monosodium glutamate (MW=169), 0.5M NaOH and distilled water. b. Momentarily distracted by having a piece of old light fixture fall on your head, you add 10ml of the 0.5 HCL to the 2L of buffer. What would be the pH now?
ADVERTISEMENT
Subjects
ADVERTISEMENT
Latest Questions
ADVERTISEMENT