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Write an essay on amino acids, polypeptides and proteins.
Your essay should include the properties of amino acids in aqueous solutions and a method of separation for a mixture of amino acids, as well as the constitution of polypeptides and proteins and their hydrolysis
If one slice of chocolate cake contains 35g of carbohydrate, 15g of fat and 5g of protein, calculate the kilocalories that each slice of cake contains.
Explain A common industrial unit for expressing the concentration of hydrogen peroxide is to state the relative volume of oxygen gas at 0 degrees Celsius as well as 1 atm, produced per volume of hydrogen peroxide solution that decomposes. Compute ..
The pKb values for the dibasic base B are pKb1 = 2.1 and pKb2 = 7.8. Calculate the pH at each of the following points in the titration of 50.0 mL of a 0.75 M B(aq) with 0.75 M HCl(aq).
Suppose that you have 0.500 L of each of the following solutions, and an unlimited supply of water. (Note: C9H7NHBr is a salt containing the ions C9H7NH+ and Br? and C9H7N is quinoline,
You transfer a sample of a gas at 17*C from a volume of 5.67L and 1.10atm to a container at 37*C that has a pressure of 1.10atm. what is the new volume of the gas?
During an experiment to find molar volume of oxygen, assume that you heated your sample too rapidly, and some of the sample spattered onto the rubber stopper in the test tube
Calculate the mass ( kg ) of the solute C4H8O and the volume ( mL ) of the solvent C6H6 that should be combined to generate 6450 g of a solution that is 2.07 m C4H8O.
If 25.1 mL of 0.1222 M NaOH id required to reach the first equivalence point of a solution of citric acid (H3C3H5O7), how many mL of NaOH are required to completely neutralize this solution
The NH3 molecule is polar. Explain how does this offer experimental proof that the molecule cannot be planar
What is the reaction order with respect to each reagent for the following reaction? Then write the rate law equation.
What are the signs of Hvap and Svap for water. Do you expect the signs of these quantities to be the same for other liquids. Explain.
The cell constant of a conductivity sell is equal l/A. The resistance of the NaCl solution is found to be 254 Ω . Using the same sell the resistance of the 0.05 M KCL is found to be 467 Ω . Estimate the NaCl concentration if the molar conductivity ..
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