Which if any of the following species...

35) which if any of the following species are in the greatest c in a 0.100 molar solution Hsub2SOsub4 in water? a) Hsub2SOsub4 molecules b) Hsub3O^+ ions c) HSOsub4^- ions d) SOsub4^2- ions e) all species are in equillibrium and thus the same concentration. 36) at 20 degrees C the vapor pressure of toluene is 22mm Hg and that of benzene is 75 mm Hg. An ideal solution, equimolar in toluene and and benzene is prepared. And 20 degree C what is the mole fraction of benzene in the vapor in equilibrium with the solution?

aqeous solution, oxidizing agent

37) which the following aqueous solutions has the highest boiling point? a) 0.10 M potassium sulfate b) 0.10 M HCl acid c) 0.10 M ammonium nitrate d) 0.10 M magnesium sulfate e) 0.20 M sucrose 38) When 70 ml of 3.0 M Nasub2COsub3 is added to 30 ml of 0.1 M NaHCOsub3, the resulting concentration of Na^+ is? 39) which of the following species cannot function as oxidizing agent? a) Crsub2Osub7^2- b) MnOsub4^- c) NOsub3^- d) S e) I^-

weigh out, precipitate, electron

40) A student wishes to repair 2.00 liters of 0.100 M KlOsub3 molecular mass 214). The proper procedure is to weigh out. a) 42.8 grams of KIOsub3 and add 2.00 Kilograms of Hsub2O a) 42.8 grams of KIOsub3 and add Hsub2O until the final homogeneous solution has the volume of 2.00 liters b) 21.4 grams of KIOsub3 and add Hsub2O until the final homogeneous solution has a volume of 2.00 liters d) 42.8 grams of KIOsub3 and add 2.00 liters of Hsub2O e) 21.4 grams of KIOsub3 and add 2.00 liters of Hsub2O 41) A 20.0 ml sample of 0.200 M Ksub2COsub3 solution is 30.0 ml of 0.400 M Ba(NOsub3)sub2 solution. Barium Carbonate precipitates. The Concentration of barium ions, Ba^2+, in soluti... click for more

Aqueous solution, gen. question, hydrocarbon

43) which the following reactions does not proceed significantly to the right in aqueous solutions? a) Hsub3O^+ + OH^- --> 2Hsub2O b) HCN + OH^- ---> Hsub2O + CN^- c) Cu(Hsub2O)sub 4^2+ + 4 NHsub3 ---> Cu(NHsub3)sub4^2+ + 4Hsub2O d) Hsub2SOsub4 + Hsub2O ---> Hsub3O^+ + HSOsub4^- e) Hsub2O + HSOsub4^- ---> Hsub2SOsub4 + OH^- 44) A compound is heated to produce gas whose molecular mass is to be determined. The gas is collected by displacing water in a water filled flask inverted in a trough of water. which of the following is necessary to calculate the molecular mass of the gas, but does not need to be measured during the experiment a) mass of the compound used in the expe... click for more

acid dissociation, organic compond, moles

46) If the acid dissociation constant, Ksuba, for an acid HA is 8 x 10^-4 at 25 degree C, what percent of the acid is dissociated in a 0.50 M solution of HA at 25 degree C? 47) the organic compound represented above is an example of O a) an alcohol | | b) an aldehyde CHsub3 --- C --- CHsub2 ---CHsub3 c) and ether d) and organic acid e) a ketone 48) equal numbers of moles of Hsub2(g), Ar(g), and Nsub2(g) are placed in a glass vessel at room temperature. If the vessel has a pin sized leak, which of the following will be true regarding the relative values of the partial pressures of the gases remaining in the vessel after some of ... click for more