The quantity of antimony in a sample can be determined by an oxidation-reduction titration with an oxidizing agent. a 7.51-g sample of stibnite, an ore of antimony, is dissolved in hot, concentrated hcl(aq) and passed over a reducing agent so that all the antimony is in the form sb3 (aq). the sb3 (aq) is completely oxidized by 37.1 ml of a 0.115 m aqueous solution of kbro3(aq). the unbalanced equation for the reaction is

bro3-(aq)+sb+3(> br-(aq)+sb+5(aq) (unbalanced)

calculate the amount of antimony in the sample and its percentage in the ore.

the correct answer is b. a strong acid completely dissociates to its ions when dissolved in water. completely dissociates to and ions. a is incorrect because does not fully ionize to and ions and some remain as the compound . c and d are incorrect because, and do not fall into the category of bronsted lowry acids. a bronsted lowry acid is a proton donor and since both molecules do not have a proton to donate they are not bronsted lowry acids. likewise,   if we use the lewis acid definition, they cannot be acids. a lewis acid is an electron pair acceptor. both and have a complete octet so can not accept any electrons which disqualifies them as acids.