The formation constant* of [M(CN) 2 2 ]− is 5.30 × 10 18 5.30×1018 , where M is a generic metal. A 0.150 0.150 mole quantity of M(NO3) is added to a liter of 0.650 0.650 M NaCN solution. What is the concentration of M+ ions at equilibrium?

where are the choice options?

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.

answersilicon (si); oxygen (o);