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Calculate Cr 3+ in equilibrium with Cr(OH)4 - when 0.01 mol of Cr(NO3)3 is dissolved in 1 L of solution buffered at pH 10.0
Calculate the number of moles of gas collected during the reaction. Recall that PV = nRT and R = 8.21x10^-2 and calculate the number of moles of HCl used as a reactant.
question if a formic acidformate buffer is 0.031 m in formic acid and has a ph of 3.91 what is the molar concentration
What mass (in g) of iron is needed to evolve 730.5 kJ of heat under standard conditions as it forms iron(III) oxide
strontium metal crystalizes in a cubic unit cell which has a edge length of 612 pm. If the mass of an atom of Sr is 87.62 amu, and the density of Sr is 2.54 g/cm3.
Find the equilibrium pH of a 10^-3 M NaCN solution by using graphical methods, try to find the equilibrium pH with the charge balance and separately with the proton condition.
calculate the equilibrium constant from an absorbance value but my professor never told us how to calculate this.
Einstein's 1905 paper on the photoelectric effect was the first important application of Planck's quantum hypothesis. Describe Planck's original hypothesis, and explain how Einstein made use of it in his theory of the photoelectric effect.
the dynamic range maybe a useful parameter of any spectroscopic system and is the very important parameter of the
The half-cell is a chamber in the voltaic cell where one half-cell is the site of an oxidation reaction and the other half-cell is the site of a reduction reaction.
Synthesis of Dibenzalacetone from Bezaldehyde and Acetone, Reacting Benzaldehyde with acetone to yield Dibenzalacetone.
1. Of the six different cations which should not form precipitates? 2. Of the six different anions which should not form any precipitates?
compound a has a solubility of 18 grams per 100. grams of water at25 degrees c. cooling a saturated 200.-gram solution
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