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Problem- Every alpha amino acid has at least two possible sites for acid/base reactivity: the carboxylic acid site (pKa approx 2) and the amino site (pKa 9-10). Which amino acids have a third group that can undergo acid/base chemistry? Arrange these from most to least acidic side chain, using the three carbon abbreviations for their names
Any expert will able to provide correct answer for the above question.
Problem- If you purchased 3.81?Ci of sulfur-35, how many disintegrations per second does the sample undergo when it is brand new
Calculate the change in enthalpy of this reaction. Specific heat of the solution = 4.184 J/(g oC) State your answer in kJ with 3 significant figures. Don't forget to enter the unit behind the numerical answer. The molecular weight of KOH is 56.2 g..
a buffer is created by mixing 26 mL of 3.3M sodium formate and 16 mL of 3 M formic acid. What is the capacity of the buffer if 0.2 M NaOH is added?
Write the balanced formula unit equation for the reaction of sodium with oxygen (use major product). What is the sum of the coefficients
2 Al(OH)3 + 3 H2SO4 → Al2(SO4)3 + 6 H2O. How many grams of Al2(SO4)3 are generated when 152 g of H2SO4 reacts.
Give the structure of the sodium salt of methyl salicylate and in the second part of the experiment, what is the structure of the anionic form of salicylic acid before it is acidified with the dilute sulphuric acid?
Explain a resting nerve cell membrane, sodium-potassium pump, action potential and what wil happen if sodium channels were blocked
Utilize the data below to find out the rate law and the rate constant (k) for the subsequent reaction.
The water as well as calorimeter is at 25 Celsius. The graphite is ignited as well as burned and the water temperature rises to 28.05 Celsius. The heat capacity for the calorimeter is 5.15KJ/C. Compute DeltaH per MOLE of the reactant for this reac..
When 2.00 mol of NOCl(g) was heated to 225 degrees celcius in a 400L steel reaction vessel, the NOCl partially decomposed according to the equation 2 NOCl(g) -->2 NO(g) + Cl2(g)
A sample of gas occupies a volume of 459 mL at 0.736 atm and 29 degrees Celsius. Calculate the volume of the gas if its pressure is changed to 0.957 atm while its temperature is held constant.
a volume of 18.0 l nbspcontains a mixture of 0.250 mol n2 0.250 mol o2 and an unknown quantity of he. the
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