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Identify the charged groups in the peptide illustrated below at pH 1 and pH 7. Explain what is the net charge of this peptide at these two pH values?
Val-Met-Ser-Ile-Phe-Arg-Cys-Tyr-Leu
These three complexes appear colored red, yellow, and green (but not necessarily in that order). Match each complex with its apparent color. d.) Could any of these compounds exhibit geometrical isomerism? Show all possible geometric isomers for ea..
25.0 mL of ethanol (density = 0.789 g/mL) initially at 7.4°C is mixed with 32.1 mL of water (density = 1.0 g/mL) initially at 25.3°C in an insulated beaker. Assuming that no heat is lost, what is the final temperature of the mixture?
Imagine you want to determine the binding constant for a reaction. You know you will need to generate data to calculate the binding constant.
The only two accessible conformations of a protein differ by 2kJ/mol. What percentage of protein molecules will be in the higher energy state at 350K? at 270K
Calculate the molar mass of the biomolecule. for carbon tetrachloride, the boiling-point constant is 5.03 degrees C x kg/mol, and the boiling point of pure carbon tetrachloride is 76.50 degrees C.
Write a reaction mechanism for the reaction of (Z) 3-methyl-3-hexane with Cl2 and H2O. Use curved arrows to show electron movements and clearly show the structures of the reaction intermediates and the final product.
Calculate the number of silver atoms in a single silver nanoprism with the shape of an equilateral triangle with an edge length of 40 nm and a thickness of 5 nm.
A sports-ultility vehicle has an average mileage rating of 18 miles per gallon. How many galllons of gasoline are needed for a 397-mile trip
Given a vapor pressure of toluene of 21 mm Hg, at 760 mm Hg, what is the equilibrium concentration for toluene
hydrogen peroxide is a powerful oxidizing agent used in concentrated solution in rocket fuels and in dilute solution as
A sample of natural gas contains 1 mole of gas X, 0.5 mole of gas Y, and 3.5 moles of gas Z. If the partial pressure of gas x is 0.4 atm, what is the partial pressure in atm of gas Z
A system absorbs 198kJ of heat and the surroundings do 120kJ of work on the system. What is the change in internal energy of the system
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