Answer:
The calculated concentration of acid will be higher than the actual concentration of acid
Explanation:
We have information that all enable us to calculate the concentration of KOH in the solution. From the question, we have;
Mass of KOH= 14.555g
Molar mass of KOH= 56.1056 g/mol
Volume of solution= 500 ml
Number of moles of KOH= ???
From;
m/M= CV
m= mass of KOH
M= molar mass of KOH
C= concentration of KOH solution
V= volume of solution
Substituting values;
14.555g/56.1056 g/mol = C× 500/1000
0.259 moles = 0.5C
C= 0.259/0.5
C= 0.518 M
If the acid is HA, the reaction equation is;
KOH(aq) + HA(aq) ----> KA(aq) + H2O(l)
The concentration of the acid is usually determined via titration. This involves delivering a particular volume of acid in a burette into the base and watching out for the volume of acid used at end point. If there are air bubbles in the burette, then more volume of acid is recorded than that actually used and this will make the calculated concentration of the acid to be higher than the actual concentration of acid present.
