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The fluids within cells are buffered by H₂PO4 and HPO42. For H3PO4. Kat = 7.5 x 10-³, K2 = 6.2 × 10-8, and K3 = 4.2 x 10-13. Part A Calculate the ratio of HPO42 to H₂PO4 required to maintain a pH of 6.9 within a cell. Express your answer to one significant figure. IVE ΑΣΦ [HPO4²-] [H₂PO4 Submit Previous Answers Request Answer X Incorrect; Try Again; 8 attempts remaining Part B ? Could a buffer system employing H3PO4 as the weak acid and H₂PO4 as the weak base be used as a buffer system within cells? No, a buffer system cannot be made since the pK, is less than one pH unit from the desired pH. Yes, a buffer system can be made since the pK, is more than one pH unit from the desired pH. No, a buffer system cannot be made since the pK, is more than one pH unit from the desired pH. can be made since the pK, is less than one pH unit from the desired pH.

The fluids within cells are buffered by H₂PO4 and HPO42. For H3PO4. Kat = 7.5 x 10-³, K2 = 6.2 × 10-8, and K3 = 4.2 x 10-13. Part A Calculate the ratio of HPO42 to H₂PO4 required to maintain a pH of 6.9 within a cell. Express your answer to one significant figure. IVE ΑΣΦ [HPO4²-] [H₂PO4 Submit Previous Answers Request Answer X Incorrect; Try Again; 8 attempts remaining Part B ? Could a buffer system employing H3PO4 as the weak acid and H₂PO4 as the weak base be used as a buffer system within cells? No, a buffer system cannot be made since the pK, is less than one pH unit from the desired pH. Yes, a buffer system can be made since the pK, is more than one pH unit from the desired pH. No, a buffer system cannot be made since the pK, is more than one pH unit from the desired pH. can be made since the pK, is less than one pH unit from the desired pH.

Chemistry
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
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The fluids within cells are buffered by H₂PO4 and HPO42. For H3PO4. Kal = 7.5 x 10³, K2 = 6.2 x 10-8, and K3 = 4.2 x 10-13. Part A Calculate the ratio of HPO42 to H₂PO4 required to maintain a pH of 6.9 within a cell. Express your answer to one significant figure. 195 ΑΣΦ [HPO42-] [H₂PO4] Submit Previous Answers Request Answer X Incorrect; Try Again; 8 attempts remaining Part B Could a buffer system employing H3PO4 as the weak acid and H₂PO4 as the weak base be used as a buffer system within cells? 00 ? No, a buffer system cannot be made since the pK, is less than one pH unit from the desired pH. Yes, a buffer system can be made since the pK, is more than one pH unit from the desired pH. No, a buffer system cannot be made since the pK, is more than one pH unit from the desired pH. Yes, a buffer system can be made since the pK, is less than one pH unit from the desired pH. Submit Request Answer
Transcribed Image Text:The fluids within cells are buffered by H₂PO4 and HPO42. For H3PO4. Kal = 7.5 x 10³, K2 = 6.2 x 10-8, and K3 = 4.2 x 10-13. Part A Calculate the ratio of HPO42 to H₂PO4 required to maintain a pH of 6.9 within a cell. Express your answer to one significant figure. 195 ΑΣΦ [HPO42-] [H₂PO4] Submit Previous Answers Request Answer X Incorrect; Try Again; 8 attempts remaining Part B Could a buffer system employing H3PO4 as the weak acid and H₂PO4 as the weak base be used as a buffer system within cells? 00 ? No, a buffer system cannot be made since the pK, is less than one pH unit from the desired pH. Yes, a buffer system can be made since the pK, is more than one pH unit from the desired pH. No, a buffer system cannot be made since the pK, is more than one pH unit from the desired pH. Yes, a buffer system can be made since the pK, is less than one pH unit from the desired pH. Submit Request Answer
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