Question

Write the equation for the reaction that forms the few (but important) ions in pure water

Write the equation for the reaction that forms the few (but important) ions in pure water. i. Why is tap water more conductive than distilled water? ii i. Is there any evidence that methanol forms ions either in the pure state or when dissolved in water? Would you classify methanol as a strong electrolyte, weak electrolyte, or nonclec- trolyte Compare your measurements for CH,OH(aq), CH,COOH(aq), and HCl(aq). Would you classify aqueous acetic acid as a strong electrolyte, weak electrolyte, or nonelectrolyte? What species are present in aqueous acetic acid? In glacial acetic acid? iv. Species Present CH,COOH (aq) CH,COOH() Does sucrose behave like a strong electrolyte, weak electrolyte, or nonelectrolyte when it is dissolved in water? What species are present in C H. O (aq)? v. vi. The models of solid NaCl describe it as consisting of Na cations and C anions. If this is the case, why is NaCl(s) not an electrolyte? Experiment 10: lonic and Covalent Bonding: Conductivity of Solutions of lonic and Covalent Compounds--Report 118

Answer 1

Ans. 1. Balanced Reaction H₂0 (aq) + H20209 -> H₂0 Eagle 04+109) Autoprotolysis of water produces #sotandoth ions in pore water Impore water [tz ot] = [oH-] = 107 11. Tapaater generally consists of various ions lik Caz, Ferr, cl, Soy mga dissolved in it. Moreover, dissolution of atorospheric cos in it produces small amount of carbonic acid which further dissociates into bicarbonate ion and proton. That is the top coater consists of several ions whereas distilled water does not cat least theoretically), Greater is the the number of ions in water, greater is its conductivity because ions conduct change Therefore, presence of relatively large amount of ions in tap water makes it more conductive that distilled water. #m. Methand forms ions when dissolved in water conductivity of pore methanol is extremely lower than its aquesus folution Higher condkactivity Cligher than both pore water and pure methano 1) of metha not solution in water indicates that methanol undergoes dissociation to form ions in water.

methanol act as week acid so, the pH of methanol solution must be acidic whereas that of pare water of methanal netural. math #1V. Hel-Heliso stung electrolyte because it undergoes complete dissociation chon diss -olved in water. CH3Cooh (69) is a weak electrolyte because it for goes small dissociation ahen dissolved in water. CH2 Cooth(i) or pore actic acid is nonelectrolyte because it does not undergo significant dissociation in pore form. #vichen dissolved in water Jucrose arts of nonelecfrdyte because it does not dissociates The acques solution consists of cultiusos only ions but who ions #nin solid fom, the not and errions remains attached to each other in its lattice structure There is no free wat and an ions in solid form. Therefore, solid woch is not an electrolyte when dissolved in watter, the slid nael desalen for way ) and d oes