For a 1.0 × 10⁻⁶ M solution of HNO₃ (aq) at 25 °C, arrange the species by their relative molar amounts in solution.### Species Arranged by Relative Molar Amounts:1. **H₂O** - Greatest amount2. **H₃O⁺** 3. **NO₃⁻** 4. **OH⁻** 5. **HNO₃** - Least amountThis diagram shows a vertical arrangement of chemical species where H₂O is present in the greatest amount while HNO₃ is present in the least. This represents the distribution of these species in an aqueous solution of HNO₃ with a molarity of 1.0 × 10⁻⁶ at 25 °C.

Given : Concentration of HNO3 = 1.0 X 10-6 M Since HNO3 is a strong acid. Hence it will dissociate completely into ions as per the reaction, => HNO3 (aq) + H2O (l) -------> H3O+ (aq) + NO3- (aq) Since the water is solvent. Hence it will be present in excess amount. Hence the molar amount of H2O will be highest as it is solvent. The concentration of HNO3 in the solution will be almost 0 as it is dissociating completely. Hence the molar amount of HNO3 will be least in the solution. From the dissociation reaction we can see that concentration of ions produced are => molar concentration of H3O+ produced from HNO3 = concentration of HNO3 taken = 1.0 X 10-6 M And molar concentration of NO3- produced from HNO3 = concentration of HNO3 taken = 1.0 X 10-6 M Since there will be auto ionisation of water as well taking place. => 2 H2O (l) ------> H3O+ (aq) + OH- (aq) Since the extent of auto ionisation of water is very less. Hence it can be used to just say that the concentration of H3O+ in the solution will be slightly more than the concentration of NO3- ions as H3O+ ions are coming from the auto ionisation reaction as well. And since the extent of auto ionisation reaction is less. Hence the concentration of OH- ions will also be less. Hence the concentration of OH- ions will be less than the concentration of NO3- ions. Hence the below order of molar amounts of species in the solution, => H2O > H3O+ > NO3- > OH- > HNO3

Answered: For a 1.0 x 10 M solution of HNO, (aq)…

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For a 1.0 x 10 M solution of HNO, (aq) at 25 °C, arrange the species by their relative molar amounts in solution. Greatest amount H,O H,O* NO, OH HNO3 Least amount

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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