10. in the beaker below, draw a representation to show 10 molecules of a weak acid dissolved in water with…

10. in the beaker below, draw a representation to show 10 molecules of a weak acid dissolved in water with 20% ionization. include only the water molecules that react, not the excess water molecules in the solution. molecular acid = h+ a- water = 11. you have conductivity meters in 1 m solutions of hno3, hno2, and hc2h3o2. the 1 m hno3 light bulb is bright, the 1 m hno2 light bulb is giving off some light, and the 1 m hc2h3o2 is very dim. rank the solutions in order of acid strength based on this information. 12. based on your answer to question 11, write balanced chemical equations for hno3 and hno2 reacting with water as they are mixed into an aqueous solution. use single or double arrows as appropriate.

10. in the beaker below, draw a representation to show 10 molecules of a weak acid dissolved in water with 20% ionization. include only the water molecules that react, not the excess water molecules in the solution. molecular acid = h+ a- water = 11. you have conductivity meters in 1 m solutions of hno3, hno2, and hc2h3o2. the 1 m hno3 light bulb is bright, the 1 m hno2 light bulb is giving off some light, and the 1 m hc2h3o2 is very dim. rank the solutions in order of acid strength based on this information. 12. based on your answer to question 11, write balanced chemical equations for hno3 and hno2 reacting with water as they are mixed into an aqueous solution. use single or double arrows as appropriate.

Answer

10.

Since we have 10 molecules of a weak - acid and 20% ionization, the number of ionized acid molecules is (10\times0.2 = 2) and the number of non - ionized acid molecules is (10\times(1 - 0.2)=8). When a weak acid (HA) ionizes in water, the reaction is (HA + H_2O\rightleftharpoons H_3O^++A^-). For the 2 ionized acid molecules, we need 2 water molecules to react. We draw 8 non - ionized acid molecules (represented as (HA)), 2 (H^+) ions, 2 (A^-) ions, and 2 water molecules that have reacted.

11.

Explanation:

Step1: Understand conductivity and acid strength relationship

Conductivity in an acid solution is related to the number of ions present. Stronger acids ionize more completely, producing more ions and higher conductivity.

Step2: Analyze the conductivity data

The (1M\ HNO_3) has a bright light - bulb, indicating high conductivity and complete ionization, so it is a strong acid. The (1M\ HNO_2) has some light, indicating partial ionization and it is a weak acid. The (1M\ HC_2H_3O_2) has a very dim light, indicating very little ionization and it is a weak acid.

Answer:

(HNO_3>HNO_2>HC_2H_3O_2)

12.

Explanation:

Step1: Write the equation for (HNO_3)

(HNO_3) is a strong acid and ionizes completely in water. The reaction is (HNO_3(aq)+H_2O(l)\rightarrow H_3O^+(aq)+NO_3^-(aq)) (use a single arrow because it is a complete reaction).

Step2: Write the equation for (HNO_2)

(HNO_2) is a weak acid and ionizes partially in water. The reaction is (HNO_2(aq)+H_2O(l)\rightleftharpoons H_3O^+(aq)+NO_2^-(aq)) (use a double arrow because it is a reversible reaction).

Answer:

(HNO_3(aq)+H_2O(l)\rightarrow H_3O^+(aq)+NO_3^-(aq)) (HNO_2(aq)+H_2O(l)\rightleftharpoons H_3O^+(aq)+NO_2^-(aq))