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A NaOH solution is standardized by titration with 0.835 g KHP (monoprotic standard acid, MW = 204.2 g/mol). 23.47 mL of the unknown NaOH solution is needed to titrate the 0.835 g KHP to the endpoint. Calculate the concentration of the NaOH solution.
Categorize each orbital diagram for ground-state electron configurations by the rule or principle it violates
the value of the equilibrium constant K(pressure) is 0.2230. If a sealed vessel contains an initial reaction mixture of N2 = 0.0100M, H2= 0.0200M and N2H2= .000150M what will N2H2(M) be when equilibrium in reached.
Suppose that after delivery several drops of the water cling to the inner wall of the pipette (because the pipette is dirty). How does this technique error affect the reported density of water?
Rank the following bonds from strongest to weakest and provide the bond energy: the bond between hydrogen and oxygen in a water molecule, the bond between sodium and chloride in the NaCl molecule
How much does the molar enthalpy change when 147 g. of water cools from 90.0 C to 17.0 C when 20.0 g. of KCL is added to the water? Is this reaction exothermic or endothermic?
what volume of 0.100 m naoh is required to precipitate all of the nickel (II) ion from 150.0 ml of a 0.251 M solution of Ni(NO3)2
Commercial perchloric acid is 70.0% by mass, HClO4(aq), and has a density of 1.67 g/mL. Calculate the molarity of perchloric acid in the solution
Problem- At equilibrium, the concentrations in this system were found to be [N2]=[O2]=0.200 M and [NO]=0.400 M. N2+O2? 2NO If more NO is added, bringing its concentration to 0.700 M, what will the final concentration of NO be after equilibrium is r..
At a certain concentration of reactants the rate of appearance of water in the following reaction is 0.26 M/s.
Home smoke detectors contain a small radioactive source that emits alpha particles. How is this used to detect smoke? Is this radioactivity harmful to you and your family? Explain.
suppose you have 0.001 m solution of a dye with pka of7.2. from the color concentration of protonated form is found to
Suppose Joule encountered the waterfall at Niagara Falls. Calculate the height if the temperature difference between the top and bottom of the waterfall is 0.20° F.
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