DATA and CALCULATION

$\backslash$table$[[\backslash$table$[[$Vol$.$NaOH$],[(ml)$S

CALCULATION OF RMM AND Ka OF AN ACID

$V_1$ at equivalenvce point $=ml=$

At $v_{\frac{1}{2}},pH=$pKa$=,($half equivalence point$)($take ph from y axis$)$

$Ka=10-pH=$

Mass of acid $=w=0\mathrm{.}349g$

No$.$of moles of base $(NaOH)=Mx{V}_1=0\mathrm{.}1$ step $1=$ no of moles of acid in $50mL$

No$.$of moles of acid in $50ml,$mol

No$.$of moles of acid in $250ml=$ step $6250m\frac{l}{50}ml$

Relative molar mass of an acid $=$ step $4/$step $7=$

Unknown acid is $($check from the table$)=$

$\%$ Error

step $8-$step $9/$step $9)$x$100=\%$

Draw graph and find the answer