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Question- Calculate the pH at the equivalence point in titrating 0.120 M solutions of each of the following with 8.0X10^-2 M NaOH.Sodium hydrogen chromate (NaHCrO4)
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Given tyrpsin digest yields the following amino acid sequences: k, tyk, wag, and spwr and a chymotyrpsin digest yields ag, rw, ty, and kkspw. what is the primary amino acid sequence of the antibiotic peptide
the simplest formula of a substance is found to be ch2o and its approximate molar mass is found by experiment to be
At 2000°C the equilibrium constant for the reaction is Kc = 2.4 103. 2 NO(g) N2(g) + O2(g) If the initial concentration of NO is 0.100 M, what are the equilibrium concentrations of NO, N2, and O2? A) [O2] _ M B) [N2] _ M C) [NO] _ M
What would be the value of the change in concentration of C10H12/change in time during the same period of time? Explain why a catalyst for a forward reaction must also be a catalyst for the reverse reaction. Include an energy level diagram
Introduced into a 1.70 L flask is 0.120 mol of PCl5 ; the flask is held at a temperature of 227 C until equilibrium is established. PCl5(g) PCl3(g) + Cl2(g) What is the total pressure of the gases in the flask at this point
Define when this solution was separated from pure water by a semi permeable membrane, the resulting osmotic pressure supported a column of water 157mm in height. Explain what is the molecular mass of chymotrypsinogen
Draw the structure of (E)-2,3,5-trimethyl-3-hexene. Clearly show the proper (E) or (Z) stereochemistry about the double bond.
Which os the dollowing statements is correct concerning the equivalence point in a titration of a weak acid (HA) by a strong base? The pH is less than 7 because HA is a weak acid
Suppose you were trying to find a substitute for K+ in nerve signal transmission. Where would you begin your search. What ions would be most like K+? For each ion you propose
Sketch all steps of synthesis of each of the subsequent compounds using only the organic starting material given plus any organic/inorganic reagents.
Depict the major organic product(s) for the subsequent reaction. Multiple products may be haggard in one box, in any order. Charges as well as nonbonding electrons do not need to be included.
Determine the amount of energy needed to turn 10g of H2O from 11degrees Celsius to 101degree Celsius? Draw a graph and colve the problem.
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