Student Exploration Titration Gizmo Answer Key Activity.1056

Titration is a laboratory technique used to determine the concentration of a substance in a solution. It involves the slow addition of a known concentration of a solution, called the titrant, to a solution of unknown concentration, called the analyte. The titrant is added slowly to the analyte until the reaction is complete, which is indicated by a color change or a change in pH. The point at which the reaction is complete is called the equivalence point.

Example: If the answer key says 0.150 M HCl and you got 0.195 M, you likely overshot the end point (added too much NaOH). Reset and titrate more slowly. Student Exploration Titration Gizmo Answer Key Activity.1056

| Trial | Volume of Acid (mL) | Molarity of Base (M) | Volume of Base (mL) | Calculated Acid Molarity | |-------|---------------------|----------------------|---------------------|---------------------------| | 1 | 25.0 | 0.100 | 28.25 | 0.113 M | | 2 | 25.0 | 0.100 | 28.30 | 0.113 M | | 3 | 25.0 | 0.100 | 28.20 | 0.113 M | | | – | – | 28.25 | 0.113 M | Titration is a laboratory technique used to determine

[ \textHCl(aq) + \textNaOH(aq) \rightarrow \textNaCl(aq) + H_2O(l) ] Mole ratio = 1:1. The point at which the reaction is complete