Question

Order these chemical species by increasing pH of an 0.1 M aqueous solution of each. That is, imagine making an 0.1 M solution of each species. Select 1 next to the species that makes the solution with the lowest pH. Select 2 next to the species that makes the solution with the next higher pH, and so on. Notice that some of the rankings have been filled in for you already. Also notice that water is on the list. For that particular case, just compare the pH of pure water to the pH of the other solutions. Note for advanced students: for all charged species, you may assume the necessary counterions act as neither acids nor bases. species relative pH of 0.1 M aqueous solution x 6 ? HNO2 (Choose one) lo, NO, HCIO, CO2 (Choose one) OH (Choose one) Hio, (Choose one) HO

Answer 1

HNO2 No 7 НПО 10,- ho 4 Scanned with CamScanner

біле ч, o o < D4 011 acids will be low 6+(1-0) & sel conjuger te beses will After (5-8). since, 10 is just after tho it means it in the conjuge te base of strongest and HEO must be at 1. Now Helo in at 2, its conjongste base must be after 103 it means con i at 6 since Nor is at 7 Hng must be at3 and the only place left in 8 for on

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