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Consider the titration of 30.0 ml of 0.025 M NH3 with 0.020 M HCl. Calculate the pH after the following volumes of titrant have been added.
a) 10 mLb) 36.5 mLc) 37.5 mLd) 38.5 mL
considering the given equation fe2o3s 3 cog rarr 3 co2g 2 fes now determine how much fe iron is produced when 352
Metallic copper can be made by the electrolysis of molten CuO. (a) What mass of Cu is formed by passing a current of 7.09 A through molten CuO for 1.00 days
an ice cube tray holds 515 g water. if the water initially has a temperature of 21degc how many kilojoules of heat must
as per the ideal gas law a sample 1.075 mol of n2 in a 1.430 l container at temperature of 267.6 kelvin must exert a
Calculate the percent of volume that is actually occupied by spheres in a face-centered cubic lattice of identical spheres. You can do this by first relating the radius of a sphere,r
The heat of formation of Al2O3(s) is -1669 kJ/mol. Calculate the heat evolved when .267 g of Al burns in oxygen.
Normalize the total energy eigenfunctions for the three-dimensional box in the intervals 0 ? x ? a, 0 ? y ? b, 0 ? z ? c.
What is the longest wavelength of light that can be emitted by a hydrogen atom that has an initial configuration of 7p1? Give your answer accurate to three significant figures
Lead thiocyanate, rm Pb(SCN)_2, has a K_sp value of 2.00 times 10^{-5}.Calculate the molar solubility of lead thiocyanate in 1.00 it M rm KSCN.
ICE Problem: Calculate Final Concentrations, Phosgene, COCl2 (g), is an extremely toxic gas. It was used during World War I. Today it is used to manufacture pesticides, pharmaceuticals, dyes, and polymers. It is prepared by mixing carbon monoxide ..
The physical separation of crude petroleum into fractions is based on boiling point differences among components present
kp 1.78 at 250ordmc for the decomposition reaction pcl5g ? pcl3g cl2g. calculate the percentage of reactant that
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