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An impure sample of sodium chloride weighed 0.6825g. When dissolved in water and reacted with excess silver nitrate, AgNO3 , 0.9855 g of AgCl precipitated. What is the percentage of Cl in the impure sample?
Harmonic Function Morse Function Lennard Jones Function How do I determine the frequency of an absorption spectroscopy line
For a given reaction, which of the following statements can be made about the value of the equilibrium constant? It always remains the same.
Using 1-butanol as the only organic starting material, write out a series of reactions that will produce this molecule:
Consider the following reaction for the dissociation of benzoic acid (MW=122 g x mol^-1) in water where Ka for benzoic acid is 6.5 x 10^-5. C6H5COOH(aq) + H2O (l) C6H5COO-(aq) + H30+(aq)
find the specific solubilities (in g/100g H2O) in both cold and hot water for AgCl, PbCl2, and Hg2Cl2.
What is the enthalpy change for the neutralization reaction of 1 mol of CsOH in kJ?
For the titration of 87.95 mL of 0.1311 M NaOH with 1.2586 M HBr, find the pH equivalence point (ve) in mL of the solution within the receiving flask when 0 mL of HBr is added.
Normally the alkaline earth carbonates (MCO3; M = Mg^2+, Ca^+2, Sr^+2, Ba+2) are insoluble in water. Why would the method used in this experiment work for calculating the molar mass of the alkaline earth? How would the calculations have to be cha..
the elemental mass percent composition of ascorbic acid (vitamin C) is 40.92% C, 4.58% H, and 54.50% O. Determine the empirical formula
2Al(s) + 2KOH(aq) + 4H2SO4(aq) + 22H2O(l) = 2AlK(SO4)2.12H2O(s) + 3H2(g) How many moles of H gas will evolved when 6 moles of Al react with excess KOH, H2SO4 and water?
What fraction of the spherical atomic volume is occupied by the nucleus? What fraction of this atom's mass is contributed by its nucleus?
Using a table of thermodynamic data calculate, the Delta H degrees for the following reaction (at 25 degrees C).
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