Titration is a laboratory technique that is used to determine the concentration of an unknown acid or base by adding a known acid/base. There are three kinds of titrations that we will go over in general chemistry. They are: strong acid with strong base, weak acid with strong base and weak base with strong acid. Strong Acid/Strong Base Titration Strong Acid/Strong Base Titration Study Guide LINKS General Chemistry Tutoring General Chemistry Study Guides LearnWithMayya

Using the provided data, calculate the standard entropy at 25 °C for magnesium fluoride. O2(g) + 2 MgF2(s) → 2 MgO(s) + 2 F2(g) ∆S°rxn = 140.76 J/K Solution: ΔS= S of products - reactants ΔS= (2(26.78)+2(203.34))-(205.0+2X)= 140.76J/K X= 57.24J/mol LINKS: General Chemistry Tutoring General Chemistry Study Guides LearnWithMayya