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you wish to prepare 100ml of a buffer solution that is .025 M in carbonic acid, pH 7.25. You have solid H2CO3 and solid NaHCO3. Calculate how many grams of H2CO3 and HCO3- you need to weigh out to prepare this solution
Calculate the mean free path and the binary number of collisions per liter per second between HI molecules at 300 K and 1.00 atm. The collision diameter of the HI molecules may be taken to be 5.10 A. Assume ideal-gas behavior.
A zero-order reaction has a constant rate of 1.50×10?4. If after 55.0 seconds the concentration has dropped to 4.50×10?2, what was the initial concentration?
Carbon monoxide and chlorine combine in an equilibrium reaction to produce the highly toxic product, phosgene (COCl2). CO(g) + Cl2(g) Picture COCl2(g) If the equilibrium constant for this reaction
What is the minimum external voltage one must supply in order to perform the electrolysis of molten CaCl2. Show work, explain, and suggest a means for supplying this energy.
The leaves of a Rhubarb contain high concentrations of diprotic oxalic acid (HOOCCOOH) and must be removed before the stems are used to make rhubarb pie. If pKa1=1.23 and pKa2=4.19, what is the pH of a .0282 M solution of oxalic acid
If all of these tires were burned with complete efficiency, by how much (in tonnes) would Earth's current atmospheric load of C02 increase
When Zn(OH)2(s) was added to 1.00 L of a basic solution, 1.30*10^-2 mol of the solid dissolved. What is the concentration of OH- in the final solution
octane has a density of 0.692gml at 20 c. how many grams of o2 are required to burn 1.00 gal of
how much heat in rm kj is evolved in converting 1.00 rm mol of steam at 160.0circ c to ice at -55.0circ c? the heat
He decides to run an FTIR on the resultant powder on the cold finger apparatus. WHat functional group would clearly cofiirm that the white powder is indeed caffeine and not catechin?
Thermodynamics equilibrium constant (K) for liquid - gas partitioning is a ratio of the analyte concentration in liquid phase to its concentration in gas phase.
Which is the best counter ion of metal (II) -bpy complexes on the yields of aldol condensation of benzaldehyde with acetone. It would be helpful if you can provide some extra material for this topic
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