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