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A 10.1 mL sample of vinegar, which is an aqueous solution of acetic acid, HC2H3O2, requires 16.2 mL of 0.474 M NaOH to reach the end point in a titration. What is the molarity of the acetic acid solution? HC2H3O2(aq) + NaOH(aq) ? NaC2H3O2(aq) + H2O(l)
Explain how chymotrypsin combine different modes of catalysis( acid/base and covalent chemistry; proximity effects and transition state binding/stabalization) to acheive the rate enhancement observed for enzyme catalyzed reactions.
Please explain the following technical terms used in mass spectrometry: a) Molecular ion,
Describe the apparent relationship between H3O and OH concentrations when an endpoint is reach in acid-base titration.
How many chiral centers are there in aldosterone. How many total stereoisomers are there in aldosterone
What is the heat capacity of mercury if it requires 167 J to change the temperatures of 15.0g mercury from 25.0 Celsius to 33.0 Celsius
Which of the following combiantions of terms best describe the polymerization of a diisocyanate (OCN-R-NCO) and a diol to form a polyurethane
What would be the effect on the results of mistakenly adding 2.43 x 10^-3g Mg to 4.0mL of 0.1M HCl, rather than to 4.0mL of 1.0M HCl as instructed
Ethanol melts at -114 celcius and boils at 78 celcius . The enthalpy of fusion of ethanol is 5.02 KJ/mol , and its enthalpy of vaporization is 38.56 KJ/mol.
The bais set for the Fe atom consists of valence 3d, 4s and 4p orbitals. Determine the symmetries of these orbitals under Oh symmetry. (c) Construct an MO diagram for the formation of [FeH6]4- from Fe and the H6- fragment Showing which MOs are occ..
A sample of gas at 0 celsius has a pressure of 760 mm and a volume of 2 liters. When the volume is increase to 8 liters, what will new pressure be at 0 celsius
what mass of CH3CO2H is required to prepare 100.00ml of a 0.48M acetic acid solution?
Calculate the vapor pressure of Hg at 86 oC (in atm). Hg(l) ? Hg(g) ?Ho = 61.32 kJ and ?So = 98.83 J/K
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