Consider dissolving gases in water. However, H2 has a relatively high polarizability, which makes it weakly soluble - compared to other nonpolar solvents. N2 and CO2 are nonpolar, but CO2 contains two polar C=O bonds that could impart a temporary dipole to the molecule. d) The hydrophobic effect is driven largely by the entropy of the non-polar substance. Which of the following gases will become less soluble if the temperature of the water is raised? This method is used for gases which are soluble in water … c) O2 NONPOLAR. e) Cl2 NONPOLAR. Because hydrogen gas is a non-polar molecule, it does not readily form hydrogen bonds with water molecules, making it not very soluble in water. d) NH3 POLAR. It is the best method of collecting a gas so long as the gas is insoluble or slightly soluble in water. SF6 3. Collection by upward delivery. c) Substances with polar functional groups are generally soluble in water. hydrogen gas, H2. 2K(s) + 2H2O(l) → H2(g) + 2KOH(aq) Which of the following ionic compounds is soluble in water? In this single displacement reaction, what substance is the oxidizing agent? NH3 is polar, so the NH3 molecule has … Yes, H2S is soluble in water slightly to form hydrosulphuric acid, which is a weak acid and not stable for it can be oxidated by the dissolved O2 to sulphur. e) A network of electrostatic interactions exists between the molecules in water. H2 Please be specific. Hydogen gas, H2, does not have a permanent dipole moment, and thus is nonpolar and does not dissolve well in water which is polar. The gas that is most soluble in water must have the largest amount charge on a specific position of the molecule. In N2, the bond is, of course, completely nonpolar. a) CO2 NONPOLAR. Three of the compounds have a permanent dipole moment and should readily dissolve in water: SO3, NH3, and HCl. Collection over water. This method can be used for insoluble gases which are more dense or less dense than air. Which one of the following compounds will NOT be soluble in water? 1. Which of the following is a correct balanced equation for a reaction of potassium with water to give potassium hydroxide and hydrogen gas? O2 2. b) CH4 NONPOLAR. b) Water carries a dipole because of the geometry of the two oxygen-hydrogen bonds. Li2O Na2CO3 two of these would not be soluble NH4C2H3O2 CaCO3 ~ N2 therefore has the lowest solubility in water. He 4. all of these 5.