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Compare the IR spectra of cinnamyl alcohol and cinnamaldehyde. What is the major difference?
What temperature is needed to double the equilibrium constant from its value at 298 K? What temperature is needed to increase the equilibrium constant by a factor of 10? What if the standard enthalpy change were 20.0 kJ?
As a separation and detection method, would TLC or paper chromatography yield better results in the analysis of each of the following pairs of compounds?
Find out the amount of energy released by this process of fission of a single U 235 atom and expree your answer in joules?
Consider a solution that contains 73.0% R isomer and 27.0% S isomer. If the observed specific rotation of the mixture is -87.0°, what is the specific rotation of the pure R isomer
Calculate K for 2NO(g)+O2(g)=2NO2(g) from the observation that when equilibrium is established at 500K, there are 0.190 moles NO2, 2.65x10^-4 moles NO, and 0.606 moles O2 in a volume of 0.759 liters.
The density of ethanol is 0.789 g/cm3. What is the density of the object?
Compute the pH of a solution made by mixing 67 grams of sodium acetate, NaCH 3 COO, to 37 g of acetic acid, CH 3 COOH, and dissolving in H 2 O to form 300. mL of solution ?
Given the initial rate data for the decomposition reaction, A = B + C, determine the rate expression for the reaction [A],M = .0625, 0939, .125; -changeA/changet M/s = 5.44 *10^-7, 8.16 * 10^-7, 1.09*10^-6 (respectively)
What is the total pressure of a mixture of gases made up of CO2, O2, and H2 if the partial pressures are 2.2atm, 400mmHg and 112kPa respectively.
Enough water to make 2.00 L of solution is added to 25.00 mL of concentrated (18 M) sulfuric acid. What is the molarity of the resulting solution.
In a particular biological reaction taking place in the body at 37°C, the change in enthalpy was --135 kJ mol--1 and the change in entropy was --136 J K--1 mol--1. (a) Calculate the change in Gibbs energy (b) Is the reaction spontaneous? (c) ..
how many moles of na2s2o3 react with each mole of kio3 used in the standrdization? what is the oxidition state of a cl in ocl- ,and s in na2s2O3?
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