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Gibbs free energy differences between axial-substituted and equatorial-substituted chair conformations of cyclohexane were given in table 2.4
a) Calculate the ratio of equatorial to axial tert-butylcyclohexane at 25 degrees C
b) Explain why the conformation equilibria for methyl, ethyl and isopropyl substituent are comparable but the conformational equilibrium for tert-butylcyclohexan lies considerably farther toward the equatorial conformation
A new temperature scale was invented by a scientist named Pat and is called the Patrius scale. On her scale, water froze at 35°P and boiled at 280°P. What Celsius temperature is equal to 150° P?
a 36.4 l volume of methane gas is heated from 15 degrees c to 98 degrees c at constant pressure. what is the final
Calculate the hydrogen ion concentration in a solution containing 7.89 g of strontium hydroxide in 600 mL of solution.
carbon monoxide (CO) in an reaction to produce 2 moles of iron and three moles of carbon dioxide, what is the mole ratio between these reactants?
What is the pH of a buffer prepared by adding 0.45 mol of the waek acid HA to 0.608 mol of NaA in 2.00 L of solution? The dissociation constant Ka of HA is 5.66e-7
Nitrogen forms more oxides than any other element. The percents by mass of N in three different nitrogen oxides are (I) 46.69% (II) 36.85% (III) 25.94%. For each compound, determine
Calculate the total concentration of lead dissolved ([Pb]total) in a solution saturated with PbI2(s) and containing dissolved I- with a concentration of [I-] = 0.294 M. The solubility of lead is governed by the reactions shown below.
If 25.0 grams of potassium chlorate decomposes, how many grams of gas are released as a product?
A piston has an external pressure of 8.00 \rm atm. How much work has been done if the cylinder goes from a volume of 0.170 liters to 0.530 liters.
A scuba divers tank contains 0.29 kg of O2 compressed into a volume of 2.3L. What volume would this oxygen occupy at 24 degrees C and 0.92 atm
what compound was condensed in an adol reaction to produce (2E)-5-methyl-2-(1-methylbutyl)oct-2-enal
What is the strongest attractive force that must be overcome in order to do the following: a) melt pure solid phosphorus pentachloride b) boil pure liquid selenium tetrafluoride c) boil pure liquid methanol (CH3OH) d) sublime pure solid carbon dio..
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