We are determining the molarity of HCl by titration of HCl. What would be the complete equation and the net ionic equation? THanks

What are you titrating it with? Won't that make a difference in the equation we write?

It's titration of HCl with NaOH.

molecular equation:
HCl + NaOH ==> NaCl + H2O

net ionic equation:
H^+ + OH^- ==> H2O

You must learn to do these by yourself. Please post anything you don't understand about the above.

To determine the molarity of HCl by titration with NaOH, we can write the complete equation and the net ionic equation.

The molecular equation shows the overall chemical reaction that occurs during the titration:

HCl (aq) + NaOH (aq) → NaCl (aq) + H2O (l)

In this equation, the HCl reacts with NaOH to form NaCl (sodium chloride) and H2O (water).

The net ionic equation focuses only on the species that participate directly in the reaction, excluding spectator ions. In this case, the net ionic equation is:

H+ (aq) + OH- (aq) → H2O (l)

In the net ionic equation, the H+ ion from HCl and the OH- ion from NaOH react to form water.

It's important to note that when working with acids and bases, the spectator ions (such as Na+ and Cl- in this case) do not participate directly in the reaction. They are present in the solution but do not undergo any chemical changes.