Thermodynamic quantities of peroxydisulfate ion (S2O8-2)

I want the thermodynamic quantities of S2O8(-2). In other words, I want the standard free energy of formation, standard heat of formation, and the standard entropy of the S2O8(-2) ion under aqueous conditions.

moecular/ionic equation

If a reaction occurs between the 2 species write the molecular equation and the net ionic equation, otherwise indicate no reaction. 1) Barium chloride and sodium sulfate 2) Silver nitrate and potassium phosphate 3) Ammonium bromide and sodium carbonate Please show all work including if it is aqueous or a solid plus the c ...continues

Titration of % of Acetic Acid in Vinegar

My procedure: Combined 10 gtts white vinegar with 1 gtt phenolphthalein Add 5 gtts of NaOH,,adding one gtt at a time and stirring. Also have contents of NaOH into a different well of 24well-rection plate... Record observtion. Continue to add gtts of NaOH to vinegar well until the "endpoint" is reached. Record number of g ...continues

Back titration of ammonium chloride

In a labratory. A solution of Ammonium chloride was given, for us to find the concentration by techniques of back titration. NaOH was added to the diluted ammonium chloride and heated. Then Titrated with HCL adding few drops of bromocresol green indicator. Colour turned yellow. What does this mean? I have done the calculation. ...continues

Chemistry 101: SH; Cal.; isotope

These are quiet confusing word problems. a). A student wishes to determine the specific heat of a metal using a coffee cup calorimeter (calorimeter constant 50.35 cal/degrees Celsius). The student heats 130.56 grams of unknown metal from 25.0 degrees Celsius to 100.4 degrees Celsius. The initial temperature of the calorimet ...continues

net ionic, titration problem

Please give simple step by step solution. Thanks!

Balancing Equation , and Limiting reagents????

Using the initial concentration and volumes, how do u calculate the limiting reagent in each reaction below? {Please provide step by step solutions) 1# [0.1M]Pb(NO3)2 + [0.1M] Na2CrO4 --> ? initial volumes: 0.5 ml & 1 ml consecutively. 2# [0.1M]Pb(NO3)2 + [0.3M] Na3PO4 --> ? initial volumes: 1.5 ml & 0.25 ml consecu ...continues

mass equation

Write the mass equation constant expression, K (subletter c) for the following reaction. Fe2O3(s) + 3H2(g) = 2Fe(s) + 3H2O(g) The equal sign is actually arrows pointing to each side of the equation.

equilibriou constatnt

The equation constant for the reaction Ni(s) = 4CO(g) = Ni(CO)subnumber 4(g) is 5.0 x10^4 at 25 degrees celcius. What is the equilibrium constant for the reaction Ni(CO) subnumber4 (g)= NI(s) = 4CO(g)? the equal sign is actually two arrows pointing opposite directions.

equilibrium constant

1.25 moles of NOCL were placed in a 2.50L reaction chamber at 427 degrees celcius. After equilibrium was reached, 1.10 moles of NOCL remained. Calculate the equilibrium constant, K subletter c, for the reaction 2NOCL(g) = 2NO(g) + CL subnumber2(g). The equal is acually two arrows pointing in opposint directions, please show ...continues