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2CH3OH+3O2 gives 2CO2+4H2O. Calculate the heat of combustion of one mole of methanol under standard conditions.
A protein biochemist attempted to determine the amino acid sequence of a decapeptide. Use the results from the trypsin, chymotrypsin, and cyanogen bromide treatments to suggest the amino acid sequence of this decapeptide.
If 1.35 g of silver nitrate is dissolved in 115mL of water, and to this solution is added 5.00 mL of 1.45M hydrochloric acid resulting in the formation of a precipitant. Find the concentration of silver ions remaining in solution.
At equilibrium the total pressure and density of the gaseous mixture were 1.80atm and 1.60g L-1, respectively. Calculate Kc and Kp.
how many g of A will be transferred to the new ether layer? (K remains the same, even though the number of g of A being partitioned is smaller. How many total g of A have been extracted into the two ether fractions?
The mysterious peptide X is a nonapeptide that cannot be sequenced by Edman degradation. However, it is susceptible to cleavage by proteases, and the resulting peptide fragments can be sequenced.
A 125-g piece of metal is heated to 288 oC and dropped into 85.0 g of water at 26 oC. If the final temperature of the water and metal is 58.0 oC, what is the specific heat of the metal (J/goC)
Derive a curve for the titration of 50.00mL of a 0.1000 M solution of Compound A with a 0.2000 M solution of compound B in the following list. For each titration, calculate the pH afterthe addition
Write the balanced equation for the reaction of each hydrocarbon (cyclohexane, methylcyclohexane, toluene, ethylbenzene, isopropylbenzene, and tert-butylbenzene) with bromine.
What is the electron configuration of the atom in the third row of the periodic table that has the smallest ionization energy?
why is a solution containing dissolved brass made basic with concentrated NH3 and again with acidified CH3COOH?
Alpha helices are a type of secondary structure in proteins. What is the length of a 25-kDa single-stranded -helical protein segment. Assume a mean residue mass of 110 Da.
Why is a vapor unlikely to behave as an ideal gas near temperature at which vapor would liquefy?
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