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Solid Silver bromide and calcium nitrate, is produced upon mixing an aqueous solution of 20.00ml that is 0.0661 M silver nitrate, with aqueous solution of 35.00ml that is 4.724*103 ppm (w/w) calcium bromide,
1) Calculate the mass in g, of silver bromide produced
2) What is the concentration of the excess reactant when the reaction is complete?
Given the following peptide: MPFITCYRVE What is the net charge on this peptide at pH 3 and pH 11. Use the pK values for the individual amino acids in Table 4.1. Estimate the pI (isoelectric point) for this peptide.
The boiling point of chlorform CHCL3 is 61.70 degrees C at 1 atmosphere. A nonvolatile, nonelectrolyte that dissolves in chloroform is aspirin
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a sample of gas changes from p1v1 and t1 to p2v2 and t2 by one path and then back to p1v1 and t1 by another path.which
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CHEM 2813: A drinking water sample collected from Elliott Hall has [H3O+]= 8.5 x 10-5 mol/L. Calculate the pH. 123 mL of a 1.1 mol/L glucose solution is diluted to 500.0 mL. Calculate the molarity of the diluted solution.
The freezing point depression of water is a rather small 1.86 deg C kg/mol. Addition of 0.454g of zinc chloride to 3.33g of water lowers the melting point by 5.2 deg C. Calculate the expected melting point for this mixture and account for any diff..
Determine a mixture of the gases N2O4 and 2N02. At 25 C and 1 bar the density of N204 is 3.76g/L, and the density of the mixture at equilibrium is 3.13 g/L. At 25 C and .1bar find the a) degree of dissociation also the b) average molar mass
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