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Acid-base theory

Buffers

Exercise 1

The following reagents were mixed. Indicate in which case we end up with a buffer and why!

a) $50 \;mL$ $CH_3COOH$ 0.050 M and $50 \;mL$ $CH_3COONa$ $0.05\; M$

b) $50 \;mL$ $CH_3COOH$ $0.050\; M$ and $50 \;mL$ $NaOH$ $0.10\; M$

c) $50 \;mL$ $CH_3COOH$ $0.050\; M$ and $50 \;mL$ $NaOH$ $0.010\; M$

d) $1 \;L$ $H Cl$ $0.050\; M$ and $6.80\; g$ pure $HCOONa$

e) $1 \;L$ $H Cl$ $0.050\; M$ and $4.40\; g$ pure $HCOOH$