Weak Base $-$ Strong Acid Titration:

When the weak acid$-$strong base titration $=$ crotonic acid, $C4H6O2,ka=2\mathrm{.}04$ times ${10}^n-5.$ and when the value salt of weak acid $($Buffer$)$ is $N{a}^{+}$C$4$H$5$O$2^-$

A $40\mathrm{.}0mL$ sample of $0\mathrm{.}30mo\frac{l}{L}$ of your weak base is titrated with a $0\mathrm{.}60mo\frac{l}{L}$ solution of $HCl(aq),$ calculate the PH of the solution:

Give an answer for all the part a$,$b$,$c$,$d:

a$)$ before titration begins

b$)$ after $10\mathrm{.}0mL$ of $HCl(aq)$ has been added.

c$)$ At the equivalence point

d$)$ Draw the PH curve for the titration, label the axes and the equivalence point.

Buffer:

A buffer solution is prepared by dissolving $100\mathrm{.}0$gram of the weak base and $100\mathrm{.}0$gram of its salt in $1\mathrm{.}0L$ of water. Determine the PH:

Make sure to answer all the part efg:

e$)$ of the buffer

f$)$ after $0.10$molHCl was added to the initial puffer $($assume volume remains $1.$ OL$)$

g$)$ after $0\mathrm{.}12$molNaOH was added to the initial buffer $($assume volume remains $1.$ OL$)$