REPORT#1 BUFFER

REPORT#1 BUFFER - VerinaAtalla PHS23017:3510:30AM A...

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Verina Atalla  PHS 2301- 7:35- 10:30 AM A solution with a high buffering capacity can react with a large amount of added Questions 1) Write down the acid and its conjugate base in the following equations: a) Acid: HCl Conjugate base: Cl - b) Acid: NaCl Conjugate base: Cl - c) Acid: CH3COOH Conjugate base: CH3COO - d) Acid: H2PO4 - Conjugate base: HPO4 2- 2) Which solution has the highest buffer capacity for HCl? Phosphate  3) Which buffer has the highest buffer capacity for NaOH Acetate 4) Is the buffer capacity the same for NaOH as they are for adding HCl for each buffer?  Explain why or why not. The simple answer is yes. NaOH is a strong base and HCl is a strong acid. The salt buffer that will work for both is NaCl since it's got both ions that would make the conjugate acid and base. Adding NaCl to either will allow for the same degree of buffering in opposite pH directions. Since NaOH + NaCl will prevent the pH from getting to high and
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This note was uploaded on 03/09/2011 for the course PHS 2301 taught by Professor Bohu during the Spring '11 term at St. John's.

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REPORT#1 BUFFER - VerinaAtalla PHS23017:3510:30AM A...

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