100 mL buffer solution (pH=5) being prepared using 5 mL of 0.5M acetic acid solution. 1....

Question

Question

100 mL buffer solution (pH=5) being prepared using 5 mL of 0.5M acetic acid solution.

1. Calcualte the concentration of acetic acid [HA] in the final 100 mL:

2. Use the Henderson -Hesselbalch equations and solve for unkown:

3. Calculate the moles a A- needed to obtain this concetntration in 100 mL.

4. Calculate the mass of NaA needed to obtain this number of moles:

5. Calculate a 100 mL buffer solution (pH=5) being prepared using 5 mL of a 0.3M and 0.1M acetic acid solution.

Answer 1

Answer #1

2.5o 025 m Acid 024 og [Salt+1 3 loo moles = 4.3cxlo3 mass 엉 NaAs molu xm.cuk 4.

Answer 2

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