See attached file for data.
IMPORTANT POINT: WHEN CONFRONTED WITH A LENGTHY PROBLEM, JUST TACKLE IT ONE STEP AT A TIME. EVEN IF YOU DON'T KNOW HOW TO GET THE ANSWER AT THE BEGINNING, JUST START DOING WHAT YOU CAN DO.
I'LL SHOW YOU HOW.
Step 1: Determine the moles of NaOH reacted
(2.4862 mol/L)(0.02750 L) = 0.06837 mol NaOH
According to the titration, this is the amount of NaOH that reacted with the leftover HCl. Therefore, it equals the moles of HCl leftover
Step 2: Determine the moles of HCl that we started with
(1.5222 mol/L)(0.12000 L) = 0.18266 ...
This solution involves step by step calculations with explanations for finding moles or molecules in a chemical reaction.