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Using equations, explain how a buffer functions. Buffers consist of a solution of a weak acid, HA, and its conjugate base, A, at high concentrations. Thus, as long as the concentrations of HA(aq) and A-(aq) are not consumed, the pH change is minimal compared to addition to a non-buffer solution. Why is the buffer most effective when pH = pKa?
Show that for the adiabatic reversible expansion of an ideal gas, T1^(Cv/R)V1 = T2^(Cv/R)V2
Don't quite grasp the differences between end-to-end overlaps and side-to-side. I feel like it's commone sense that one is overlapped at the end and one at the side, but what all goes into that determiniation
Based on the procedure that you used in this experiment and using the same molar quantaties of reactants, develop a procedure that would be suitable for the preparation of isobutyl propionate.
In each of the following polyatomic ions, the central atom has an expanded octet. Determine the number of electron pairs around the central atom and the hybridization in: SF2 2- AsCl6- Scl4 2- I'm really confused on this one so your thorough help ..
what happens if cellulose is reacted with maleic anhydride C4H2O3? Again, how is the cellulose molecule/structure altered and what are the reaction by-products?
If you shine a light beam through this sample, minimal light passes through ( assume no light passes through). What if your sample allows 50% of light to pass through? How many bacteria are in your sample.
what is the fundamental mechanism by which enzymes enhance the rate of chemical reactions?
what is the pkaof the acid, what is the molarity of the original acid solution and what is the molecular weight of the acid
Draw an ideal distillation curve (temperature vs. milliliters of distillate) for a 50:50 mixture of two miscible liquids. How might one achieve such an ideal distillation
calcualte the precentage error that would result from the use of the ideal gas equation of state for the calculation.
What is the formula for the compound formed between iodine with a valency of (VII) and fluorine
What is the pH of a solution made by titrating 30.0 mL of 0.10M acetic acid with 30.0 mL of 0.10 M KOH? Assume that the volumes of the solutions are additive.
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