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A solution contains one or more of the following ions: Ag+, Ca2+, and Cu2+. When sodium chloride is added to the solution, no precipitate occurs. When sodium sulfate is added to the solution, a white precipitate occurs. The precipitate is filtered off and sodium carbonate is added to the remaining solution, producing a precipitate. Which ions were present in the original solution? Write net ionic equations for the formation of each of the precipitates observed.
The solubility of a gas in H2O at a temperature of 25 °C and a pressure of 1.2 atm is 0.042 M. What will the solubility of the same gas be in H2O at the same temperature at 3.4 atm.
What are the equilibrium concentrations of C6H5NH2, C6H5NH+3 , Cl-, H+, and OH- in an aqueous solution prepared by combining 50.0 mL of 0.0400 M C6H5NH+3 Cl- and 50.0 mL of 0.0100 M KOH? Kb = 7.4 x 10-10 for C6H5NH2.
why was Mendeleev's decision to leave blank spaces on his table sometimes was referred to as his most significant contribution to the periodic table?
pH will be greater than 7 at the equivalence point. C. titration will require more moles of base than acid to reach the equivalence point. D. pH will be equal to 7 at the equivalence point. E. titration will require more moles of acid than base to..
Problem- Vinegar is 5.0 % solution by weight of acetic acid in water. Given that the pH for acetic acid is 2.41 the Ka= 1.8E-5 and assuming the density of vinegar to be 1.00g/cm^3. What is the percent dissociation of acetic acid in vinegar
Liquid mixtures of sodium and potassium are used in some nuclear reactors as coolants that can survive the intense radiation inside reactor cores. Calculate the energy required as heat to melt 250 kg of sodium metal at 371 K.
A buffer is made by mixing 5.0 mL of 4.0 M NH3 (aq) with 15mL of 2.4 M NH4Cl(aq). What is the pH of the buffer at 25 degrees Celcius, if the base ionization constant of ammonia is 1.8*10^-5 and the ion product of water is 1.0*10^-14 at this temper..
Compute the maximum wavelength of radiation that could have sufficient energy to effect the dissociation of nitric oxide (NO). Explain in what regions of the atmosphere would such radiation be available
Assuming that you could express and purify both components, describe TWO different experimental methodologies (including SALIENT details) that you would conduct to determine whether the two proteins interact in vivo in a mammalian cell line?
Write out the balanced net ionic equations representing the reactions that occur when iron (III) in water reacts with: A) Hydrochloric Acid.
Assuming the pressure and temperature of the gas remain constant, calculate the number of moles of gas added to the container.
What is the equilibrium concentration of fluorine if the initial concentrations of bromine and fluorine were 0.113 moles/liter in a sealed container and no product was present initially
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