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A solution contains 2.0×10-4 M Ag+ and 3.6×10-2 M CO32-. Determine Qsp for Ag2CO3. Will Ag2CO3(s) precipitate? [Ksp for Ag2CO3 is 8.1×10-12]
An aqueous solution containing 2.0M of AgNO3 is slowly added from a burette to an aqueous solution that holds 0.01M Cl- as well as .01M Br-. Is separation of the two ions by selective precipitation
A solution is 0.1 mM in NaF, Na2CO3, and Na3PO4. What would be the order of precipitation as a source of Ca2+ is added gradually to the solution? The relevant Ksp values are Ksp [CaF2] = 4.0×1
Some N205 is added to a container exerting 1.00 atm before any reaction. When the equilibrium is reached, the total pressure in the container is 2.20 atm. Calculate Kp for this reaction.
How many moles of hydrofluoric acid (ka=6.8e-4) must be added to 500 ml of .10M sodium fluoride to give a buffer of pH 3.20
What is the maximum concentration of fe3+ can a buffer solution that is .10M CH3COOH and .10M CH3COONa hold without forming any precipitate
500 ml solution of benzoic acid (ka=6.6e-5) has a ph of 2.88. What is the molarity of benzoic acid
H3PO4 is a tripotic acid with a ka1=7.5x10^-3, ka2=6.2e-8 and ka3=4.8e-13. What is the value of K for H2PO4 <=> PO4^3- + 2H+
What amount of barium hydroxide (in moles) must be dissolved in a total of 5.00L of solution in order to have a pH of 12.00
Arrange equimolar solutions of the following compounds in the increasing pH (lowest to highest). Explain your answer.
Starting with the standard free energies of formation from the following table, calculate the values of delta G and E cell of the following reactions.
Use the appropriate standard reduction potentials in your book to calculate the value of K at 25C for the reaction NiO2(s)+2Cl-(aq)+4H+(aq) arrow Cl2(g)+Ni2+(aq)+H2O(l)
Electrical devices are often rated with a voltage and a current for example 120 V 5S batteries however are only with a voltage for example 1.5V why?
The pKa of benzoic acid is 4.2, whereas that of carbonic acid, H2CO3, is 6.4. On the basis of this information, would aqueous sodium bicarbonate be sufficiently basic to deprotonate benzoic acid? Ex
How much alcohol must be burned to generate enough heat to warm 279kJ from 60 degrees fahrenheit to 180 degrees fahrenheit? Express answer in grams. Show entire process
The activity coefficients of the Mg2+ and Cl- ions in this solution. The mean ionic activity coefficients of these ions.
calculate w for the following reactions that occur at 298k and 1 atm pressure, CO2(g) + NaOH(s) -> NaHCO3(s) and 3O2(g) -> 2O3(g)
What are the major products formed upon treatment of (E) 3-methyl-2-hexene with HBr in the absence of peroxides?
For [Co(en)(NH3)2Cl2]ClO4 identify the coordination number of cobalt, the coordination geometry for cobalt, the oxidation number of cobalt, the number of unpaired electrons
In which of the following complexes are geometric isomers possible, [Co(H2O)4Cl2]+, [Co(NH3)3F3], [Pt(NH3)Br3]-, [Co(en)2(NH3)Cl]2+, if isomers are possible draw their structures and label them as c
C double bond O x2 for the first reaction and in the second reaction the CO has a tripple bond i've tried to do this several times and have gotten 166.5 kj/mol 81kj/mol and 48.5 kj/mol and all of th
An emerald gemstone is an impure form of the mineral beryl, Be3Al2Si16O18. What is the percentage of silicon in the mineral
What is the molarity if pH at the stoichiometric point is 8 and the volume of base needed is twice the volume of acid being titrated? What is the molarity of the base
the density of the fuel is 0.78 g/mL the initial temperature of the water is 25 degrees celcius and the standard enthalpy of formation is -224.4 kJ/mol
A buffer contains 0.19 mol of propionic acid (C2H5COOH) and 0.22 mol of sodium propionate (C2H5COONA) in 1.20L. What is the pH of the buffer after the addition of 0.02 mol of HI