• 12
• 100% (5) 5 out of 5 people found this document helpful

Course Hero uses AI to attempt to automatically extract content from documents to surface to you and others so you can study better, e.g., in search results, to enrich docs, and more. This preview shows page 6 - 11 out of 12 pages.

Copyright 2021 - Science Interactive | Data Table 1: Adding 0.1 M HCl from D1 to A1With a solution of 0.01 moles of sodium acetate, in order to find the molarity of sodiumacetate to add to the solution, the following equation as below:pH=pKa+log(sodium acetate/acetate acid5.47=4.74+log(sodium acetate/1)log(sodium acetate)=5.47-4.74log(sodium acetate)=0.53Number of moles of Sodium acetate = 100.53 = 3.39 moles.We would need a sodium acetate molarity of3.39moles6. An acetic acid buffer solution is required to have a pH of 5.27. You have asolution that contains 0.01 mol of acetic acid. What molarity of sodiumacetate will you need to add to the solution? The pKof acetic acid is 4.74.Show all calculations in your answer.aNumber of DropspH of Solution02468101214166.06.06.06.06.06.06.06.06.0
Copyright 2021 - Science Interactive | Data Table 2: Adding 0.1 M NaOH from D6 to A6Data Table 3: Adding 6 M HCl from Pipet into B1Data Table 4: Adding 6 M NaOH from Pipet into B6Number of DropspH of Solution02468101214166.06.06.06.06.06.06.06.06.0Number of DropspH of Solution02468106.06.05.04.04.03.0
Copyright 2021 - Science Interactive | Data Table 5: Adding 0.1 M HCl from D1 into C1Data Table 6: Adding 0.1 M NaOH from D6 into C6Number of DropspH of Solution02468106.07.08.08.09.011.0Number of DropspH of Solution02468106.05.04.04.03.02.0
Competency ReviewNumber of DropspH of Solution02468106.07.08.09.011.011.01. A chemical buffer is a solution that increases pH changes when smallquantities of an acid or base are added.
2. Every buffer that is made has a certain _____ and _____.
3. Weak acids make better buffers than strong acids because they have _____.
Copyright 2021 - Science Interactive |
Copyright 2021 - Science Interactive |

Course Hero member to access this document

Course Hero member to access this document

End of preview. Want to read all 12 pages?

Course Hero member to access this document

Term
Spring
Professor
NoProfessor
Tags
pH, Science Interactive