3-46 draw the two chair conformations of each compound, and label the substituents as axial and equatorial. in each case, determine which conformation is more stable. (a) cis-1-ethyl-2-isopropylcyclohexane (c) cis-1-ethyl-3-methylcyclohexane (e) cis-1-ethyl-4-methylcyclohexane (b) trans-1-ethyl-2-isopropylcyclohexan e (d) trans-1-ethyl-3-methylcyclohexane (f) trans-1-ethyl-4-methylcyclohexane

Consider the following reaction at equilibrium. 2co2 (g) 2co (g) + o2 (g) h° = -514 kj le châtelier's principle predicts that the equilibrium partial pressure of co (g) can be maximized by carrying out the reaction a. at high temperature and high pressure b. at high temperature and low pressure c. at low temperature and low pressure d. at low temperature and high pressure e. in the presence of solid carbon

In a laboratory, 1.55mg of an organic compound containing carbon, hydrogen, and oxygen is burned for analysis. this combustion resulted in the formation of 1.45mg of carbon dioxide and .89 mg of water. what is the empirical formula for this compound?

)benzene and toluene form nearly ideal solutions. consider an equimolar solution of benzene and toluene. at 20 °c the vapour pressures of pure benzene and toluene are 9.9 kpa and 2.9 kpa, respectively. the solution is boiled by reducing the external pressure below the vapour pressure. calculate (i) the pressure when boiling begins, (ii) the composition of each component in the vapour, and (iii) the vapour pressure when only a few drops of liquid remain. assume that the rate of vaporization is low enough for the temperature to remain constant at 20 °c.