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11 Nov 2019
it's the post lab question. I'm confused how to do this. I solved for the molar ratio of B to A which is 2.01:1 and I don't know where to go from there
1. The goal of the buffers part of the experiment 2. Methodology used in the buffers part of the experiment lationship between different ratios of acid/conjugate base on pH w/ ra 4. Effect of adding strong acid to water w/ rationale 5. Effect of adding strong acid to buffer w/rationale 6. Effect of diluting acid on pH w/rationale 7. Effect of diluting base on pH w/rationale 8. Effect of diluting buffer on pH w/rationale 9. How understanding the relationship between buffer components and pH is helpful POST-LAB QUESTION (7 points) this lab, you prepared a buffer and then determined its pH, but in a laboratory setting it is usually the other way around- you need a buffer at a particular pH, and this dictates its preparation. Describe how you would prepare 100. mL of 0.1000 phosphate buffer at pH 6.5, given appropriate glassware, sodium phosphate, monobasic (NaH2PO, pKa = 7.20) and sodium phosphate, dibasic (Nall Po, pKa = 12.35) at 25°C Your answer should include calculations. (Note: The moles of each component must add to the buffer moles. Le. A+ HA 0.250 mol) In
it's the post lab question. I'm confused how to do this. I solved for the molar ratio of B to A which is 2.01:1 and I don't know where to go from there
1. The goal of the buffers part of the experiment 2. Methodology used in the buffers part of the experiment lationship between different ratios of acid/conjugate base on pH w/ ra 4. Effect of adding strong acid to water w/ rationale 5. Effect of adding strong acid to buffer w/rationale 6. Effect of diluting acid on pH w/rationale 7. Effect of diluting base on pH w/rationale 8. Effect of diluting buffer on pH w/rationale 9. How understanding the relationship between buffer components and pH is helpful POST-LAB QUESTION (7 points) this lab, you prepared a buffer and then determined its pH, but in a laboratory setting it is usually the other way around- you need a buffer at a particular pH, and this dictates its preparation. Describe how you would prepare 100. mL of 0.1000 phosphate buffer at pH 6.5, given appropriate glassware, sodium phosphate, monobasic (NaH2PO, pKa = 7.20) and sodium phosphate, dibasic (Nall Po, pKa = 12.35) at 25°C Your answer should include calculations. (Note: The moles of each component must add to the buffer moles. Le. A+ HA 0.250 mol) In
Nelly StrackeLv2
11 Nov 2019