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Question- For malonic acid (CH2(CO2H)2), (Ka1 = 1.42 x 10^-3) and (Ka2 = 2.01 x 10^-6) abbreviated as H2M, find the pH H2M, HM-, and M2- concentration for each of the following:
a.) a 0.100 M solution of H2M
b.) a 0.100 M solution of NaHM (assume [HM-] = 0.100 M)
c.) a 0.100 M solution of Na2M
Illustrate structures to prove your rezoning.
While 0.2250g of magnesium is heated with 0.5331g of nitrogen in a closed container, the magnesium is completely converted to 0.3114g of magnesium nitride. Explain what mass of unreacted nitrogen must remain
Since the blades of ice skates are very thin, the pressure exerted by a skater can be quite large. Referring to the phase diagrams for carbon dioxide and water, explain whether a rink can be constructed using dry ice (solid carbon dioxide).
Which statement is false concerning nuclear fission? 1) Absorption of a neutron by a U-235 nucleus will release at least one neutron. 2) If sufficient U-235 is present, the release of the neutrons will set up a chain reaction
A compound of forumula C14H12 gave a positive Baeyer test and burned with a yellow, sooty flame. Treatment with ozone followed by hydrolysis in the presence of zinc gave formaldehyde as one of the products.
50 g of aluminum oxide is produced in the reaction of aluminum metal and oxygen gas at STP. How many liters of oxygen gas were reacted?
This results in the formation of the highly colored FeSCN2+ complex ion. To do this analysis, a standard solution containing 5.00x10^-5 M Fe3+ was prepared. After addition of excess SCN-, the absorption of the standard solution =0.363 at 580 nm.
An experiment was performed to determine the solubility and the solubility product constant of gallic acid, a monoprotic organic acid (gmm=170.12). The equilibrium involved is: C6H5O3COOH(s) C6H5O3COO-(aq) + H+(aq)
Calculate the "molar heat of dissolution" (kJ/mol). Recall heat capacity of water is 4.184 J/g degrees celsius.
The reducing agent in this catalytic hydrogenation reaction was molecular hydrogen (H2), which was produced in situ during the course of the reaction.
what is the strongest intermolecular force in a liquid containing molecules
20.0ml of 0.150M Zn(NO3)2 are mixed with 20.0ml of 1.00 x10-4M Na2S. Calculate the amount of milligrams of ZnS (s) that will precipitate. (Ksp = 1.6 x10-24)
An unknown compound X, is thought to have a carboxyl group with a pka of 2.0 and another ionizable group with a pka between 5 and 8. When 75 ml of 0.1 M NaOH was added to 100 ml of a 0.1 m solution of X at pH 2.0, the pH increased to 6.72.
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