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Consider the following 1.0 mol L–1
solutions. Which one of the following lists the
solutions in decreasing order (that is, strongest to weakest) of electrolyte strength?

(a) sodium phosphate > sulfuric acid > phosphoric acid > sucrose (sugar)
(b) sucrose (sugar) > sulfuric acid > phosphoric acid > sodium phosphate
(c) sulfuric acid > sodium phosphate > phosphoric acid > sucrose (sugar)
(d) sodium phosphate > phosphoric acid > sulfuric acid > sucrose (sugar)


Sagot :

(a) sodium phosphate > sulfuric acid > phosphoric acid > sucrose (sugar) 
(b) sucrose (sugar) > sulfuric acid > phosphoric acid > sodium phosphate 
(c) sulfuric acid > sodium phosphate > phosphoric acid > sucrose (sugar) 
(d) sodium phosphate > phosphoric acid > sulfuric acid > sucrose (sugar)