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A service laboratory has several chemicals available for the preparation of buffer solutions: acetic acid, barbituric acid, ACES, diethanolamine, MES, and tricine.
Which of these chemicals would you suggest using when making buffers for work at the following pH values? Explain your reasoning.
a) 5.0
b) 6.0
c) 7.0
d) 8.0
The β-oxidation of odd-numbered FAs presents a small problem in that once most of the oxidation has occurred, the last component is propionyl-CoA rather than acetyl CoA. This has one more carbon and as such cannot be utilized any further. Outline the..
A 25.00mL portion of this solution required 17.56mL of hydrochloric acid(0.1396 mol/L) for complete neutralization. Calculate the percent of sodium carbonate in the mixture.
The molar enthapy of fusion for water is 6.008 kJ/mol. calculate the molar enthapy of vaporization of a substance if 0.652 mol of the substance absorbes 6.411 kJ when it melts.
A laser pulse with a wavelength of 532 nm contains 3.85 mJ (milliJoule) of energy. (a) Calculate the frequency and energy per photon of the laser light. (b) How many photons are in the laser pulse? (c) What is the energy in kilojoules per mole (kJ..
you are asked to titrate a 6.00 ml sample of vinegar using 0.25m naoh. the mass of your vinegar sample was 6.168g so
to determine the molar volume of a gas stp a tube containercontaining potassium chlorate and manganese iv oxide
1 for each of the following syntheses number of steps shown in brackets state what reagents you would use for each step
When 6.40 g of CH3OH was mixed with 10.2 g of O2 and ignited, 7.50 g of CO2 was obtained. What was the percentage yield of CO2?
Please draw a detailed arrow-pushing mechanism for the addition of HBr to trans-2-butene. Also draw a potential energy diagram for this reaction.
Nitrogen has only two isotopes of appreciable natural abundance: 14N, with atomic mass of 14.00307 amu; and 15N with atomic mass of 15.00011 amu.
based on the ionization energies of the alkali metals which alkalimetal would you expect to undergo the least
what is the balanced chemical reaction describing the decomposition of ammonium nitrate, and calculate the standard heat of reaction using the appropriate enthalpies of formation
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