Standard Molar Enthalpy of Formation - Propane burns in oxygen according to the equation: C3H8(g) + 5O2(g) ---> 3CO2(g) + 4H2O When 1.464 g of propane is burned in an excess of oxygen in a calorimeter at 298.15 K and 1 bar, 67.86 kJ of heat are released. Calculate the standard molar enthalpy of formation of gaseous propane.

Order of Reaction - Beginning with this equation, rate = Δ[S]/Δt = k' [S2O3^2-]^m; show that the relationship between -lnΔt and ln [S2O3^2-] is linear and that the slope of the line gives the order of the reaction with respect to S2O3^2-. The data is attached in case needed.

Molarity - Calculate concentration of thiosulfate ion, S2O3^2-, when 1.00 mL of .00500 M Na2S2o3 are added to experiment

taylor Polynomial - Use a taylor polynomial to show that , for a large wavelength, Planck's Law gives approximately the same values as the Rayleigh-Jeans Law. see the attached problem #2

Voltage across Wheatstone Bridge - Derive the formula to find the voltage across the terminals AB of a Wheatstone Bridge as shown in Fig.1.2 (see attached file) and then calculate the actual value with the components as shown.