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If the reaction between iron (III) ion and thiocyanate ion yielded an equilibrium concentration of .15 M for each of these ions, what is the equilibrium concentration of the red iron (III)-thiocyanate complex?
How many grams of dry NH4Cl need to be added to 2.40 L of a 0.300 M solution of ammonia (NH3) to prepare a buffer solution that has a pH of 9.00? Kb for ammonia is 1.8e-5
The solution to Chemistry, Are there differences between having electron-donating groups and electron-withdrawing groups
Calculate the standard enthalpy of formation of carbon disulfide (CS2) from its elements, given the following data.
A current of 4.67 A is passed through a Sn(NO3)2 solution for 1.80 hours
The electrochemical processes that occur in the rate limiting step of the corrosion of iron (oxidation of iron) are represented by the half-reactions
Urea is an organic compound widely used as a fertilizer. its solubility in water allows it to be made into aqueous fertilizer solutions and applied to crops in a spray. what is the maximum number of water molecules that one urea molecule can hydrog..
The pKa of phenol is 9.89. What is the Ka of phenol?
A gas undergoes a process that leads to a change in internal energy of 4.5 J, while simultaneously work in the amount of 17.6 J is performed by the gas at constant pressure. Calculate the change in enthalpy of this process.
The addition of chlorine gas to magnesium bromide will it cause a reaction and if so what will the product be
Liquid butane C4H10 , the fuel used in many disposable lighters, has delta Hfinal=-147.5 kj and a density of 0.579 g/ml . Use Hess's law to calculate the enthalpy of combustion in kJ/mol.
The reaction for the decomposition of dinitrogen monoxide gas to form an oxygen radical is: N2O--->N2 + O2. If the activation energy is 250 kj/mol and the frequency factor is 8.0 x 10^11 s^-1, what is the rate constant for the first order reaction..
calculate the molar concentration of a solution prepared by dissolving 5.4 g of sodium sulfate mw 142 in enough water
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