Titrations and Thermodynamics Quiz Review
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15 Terms
Titrant
solution with the known concentration. typically in the burette
Analyte
solution with the unknown concentration. typically in the flask
Equivalence point
acid and base have fully reacted n = n
Strong acid and strong base
pH = 7 and indicator is bromthymol blue
Strong acid and weak base
pH = less than 7, indicator is methyl red
weak acid and strong base
pH = larger than 7. indicator is phenolphalein
Titrations equation
M1V1 = M2V2
Breaking bonds
requires energy
Making bonds
releases energy
Exothermic
heat leaves the reaction. change in heat is negative
Endothermic
heat enters the reaction. change in heat is positive
Enthalpy
measure of total heat content in the reaction
Hess’s law
Starting and ending points matter. the path doesn’t matter.
Equation for heat
Q = m*c*change in temperature
how to find change in temperature
final - initial