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A sample of copper sulfate pentahydrate, CuSO4 . 5H2O, contains 3.782 g of Cu. How many grams of oxygen are in this same sample?
Consider the reaction H2(g) + Br2(g) 2 HBr(g), which is exothermic as written. What would be the effect on the equilibrium position of adding a suitable catalyst
The atomic orbitals of two iodine atoms combine to form the diatomic molecule. Use the periodic table to determine the atomic orbitals that overlap to form the molecule and the symbol of the noble gas that has the same electron configuration as th..
Addition of silver nitrate solution results in a precipitate. Assuming that the heat capacity of the solution is the same as pure water, use enthalpies of solution and solubility rules to identify the salt.
Determine the mass percent of CH3COOH in this solution if density of vinegar is 1.01 g/mL? Also calculate mole fraction of acetic acid in this solution and molality of this solution?
A NiMH battery containing 4.10 g of NiO(OH)was 50% discharged when it was connected to a charger with an output of 1.30 A at 1.3V.
the nahco3nbspis the limiting reactant and the hcl is the excess reactant in this experiment. determine the theoretical
In a particular photoelectron spectrum using 21.21 eV photons, electrons were ejected with kinetic energies of 11.01 eV, 8.23 eV, and 5.22 eV. Sketch the molecular orbital energy level diagram for the species, showing the ionization energies of th..
A 20.0- sample of 0.125 HNO3 is titrated with 0.150 NaOH. Calculate the for at least five different points throughout the titration curve and make a sketch of the curve.
Calculate the Ka of an unknown monoprotic acid .When 15ml of the acid was titrated with 28 ml of 0.15M sodium hydroxide the equivalence point was reached at a ph of 8.48
The absorption coefficient of a new complex FeX2 (X=1,10 phenanthroline, MW = 180.21) was measured as 1,400 / M cm at 355 nm. what would be the measured absorbance at this wavelength
How many Carbon 14 atoms are in a charcoal sample that has a decay rate of 3500 disintegrations per min
A solution is prepared by mixing 87.0 mL of 5.00 M HCl and 36.0 mL of 8.00 M HNO3. Water is then added until the final volume is 1.00 L. Calculate [H+ ], [OH - ], and the pH for this solution.
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