chem lab practical

  • M1V1 = M2V2

  • P = V * L

experiment 1 | chemical kinetics

  • arrhenius equation: k=Ae^Ea/RT

  • x = ln([Fe3+]), y = ln(Rate) → slope = m, [Fe]^m


experiment 2 | rate of decolorization

  • absorbancy = y; concentration = x

  • pseudo - seems like first-order bc one reactant is in excess

  • slope of kobs vs. [OH-] = k2 b/c H2O pretty much a constant



experiment 3 | borax solubility

  • ln vs. 1/T gives straight line with slope = -dH/R



experiment 4 | freezing point depression

  • freezing point is lowered when any solute is dissolved in the solvent

  • m = moles solute / kg solvent

  • m = dTf / i*Kf


experiment 5 | solar cell

  • SnO2 → glass slides coated

  • TiO2 → semiconductor

  • raspberry → anthocyanin = light-harvesting pigment

  • chelation → bond to heavy metal

  • dye: mimics photosynthesis, absorbs light to produce flow of electrons

  • I- = mediator

  • P = i * V


experiment 6 | synthesis & analysis of a copper coord compound



experiment 7 | analysis of acetic acid in vinegar



experiment 8 | pH titration



experiment 9 | Ksp



experiment 10 | complex ion equilibrium