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Question- Aniline C6H5NH2 when reacted with picric acid gives a derivative with an absorptivity of 134 cm^-1g^-1L at 359nm. What will be the absorbance of a 1.00 X 10^-4 M solution of reacted aniline in a 1.00 cell?
Separate your answers with a comma. Show the process and each step.
Explain how many ml of 0.125 M K2Cr2O7 are necessary to react completely with 25ml of 0.250M FeSO5 solution in acidic medium
As a part of this exercise, you will need to prepare 100 mL of a 0.1 M phosphate buffer at pH 7.5, and you need to calculate the amounts of NaH2PO4 and K2HPO4 that you need to use in your buffer.
A monoatomic ion X- has 29 electrons and 34 neutrons. What is the identity of element X? How do you begin to solve this?
What mass of natural gas (CH4) must burn to emit 470. kJ of heat? CH4(g) + 2 O2(g) CO2(g) + 2 H2O(g).
At what pH would the side chain of histidine exist predominately in a form that could be involved in an ionic bond?
Estimate the value of the equilibrium constant at 685 K for each of the following reactions. Delta H and S for BrCl(g) is 14.6 kJ/mol and 240.0 J/ mol * K, respectively. 2 NO_2(g) > N_2O_4(g.
Consider the reaction: Cu^2+(aq) + 4NH3 (aq) -> Cu(NH3)4^2+(aq) Kf=2.1 x 10^13 If Ksp for Cu(OH)2 is 2.2 x 10^-20, what is the value of the equilibrium constant, K, for the reaction below? Cu(NH3)4^2+(aq) + 2OH -> Cu(OH)2(s) + 4NH3(aq)
Addition of the permanganate solution to the unknown solution would colorimetrically indicate whether metal(III) is reduced to metal(II). If the unknown solution contained the metal(III) ion, the purple color of the solution would get darker. If t..
The acid-dissociation constant for an acid-base indicator HIn is 0.0000438. At 600 nm, the molar absorptivities are 2230 for HIn and 8900 for In-. Calculate the absorbance at 600 nm of a 1.00 x 10-4 M solution of the indicator at pH 4.81 in a 1.00..
The molar heat capacity of silver is 25.35 J/Mol * degrees celcius. Knowing how much energy it would take to raise the temperature of 11.7g of silver by 16.9 degrees celcius in joules. Answer the following question: What is the specific heat of si..
Its volume is 2.0 x 10^2 mL and its pressure is 750 torr. what is the molar mass?
Solutions, suspensions, and colloids all have solutes interacting with solvents. Which have solute particle diameters below 1,000nm. a. solutions
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