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Problem- Compute the total number of possible decapeptides that could be synthesized from the 20 standard amino acids. If you were to spend five minutes writing out the molecular structure of each possible decapeptide how long would the task take?
Show all work, use additional paper if necessary.
The normal boiling and freezing points of substance X are 87.3 K and 84.0 K respectively. The triple point is at 82.7 K and 0.68 atmosphere. a. Draw a phase diagram for substance X. Label the regions in which the s,l, and g phases are stable.
The concentration of carbon in a carbon-metal alloy is found to be 4.73x10^1 kg/m3. It is also known that the concentration of carbon in wt% in the alloy is 1.318x10^0 .
What is the final state of the system when the piston has stopped and there is a balance of forces across the piston? Do not neglect the fact that during motion there may be some friction between moving parts. Consider cases in which the piston is..
The sample required 42.8ml of 0.0175M permanganate to reach the end point. What is the concentration of hydrogen peroxide in the origina sample
The speed of light in a vacuum is 2.998x10^8 m/s. what is the speed of kilometers per hour. what is the speed in miles per minutes.
Determine the rate law and the value of k for the reaction at 25oC
Consider the following reaction at 298 K. 2 SO2(g) + O2(g) ? 2 SO3(g) An equilibrium mixture contains O2(g) and SO3(g) at partial pressures of 0.42 atm and 1.5 atm, respectively. Determine the equilibrium partial pressure of SO2 in the mixture.
a buffer solution is prepared by adding 15.00 g of sodium acetate nac2h3o2 and 12.50 g of acetic acid to enough water
A solution of NH3 was prepared by diluting 8.29 mL of 27.62 wt% NH3 [density=0.89 g/mL] up to 564.0 mL. The molecular mass of NH3 is 17.0305 g/mol. Find the concentration of NH3 in M.
The freezing point of pure camphor is 178.4 oC, and its molal freezing-point constant, Kf, is 40.0 oC/m. find the freezing point of a solution containing 3.00 g of a compound (molar mass = 125 g/mol) dissolved in 45.0 g of camphor.
Calculate the pH of a buffer solution composed of 0.10 M butyric acid (CH3(CH2)2COOH, Ka = 1.5 x 1-^-5) and 0.20 M sodium butyrate, (NaCH3(CH2)2COO).
how much energy is lost by 10 kg of silver if it is cooled from 35 degree celsius to 21 degree celsius
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