I had posted this question before and wanted to know if I had gotten the right answers.
We have to identify the five compunds of H, N, and O described below. For each compound, I have to write a Lewis structure that is consistent with the information given.
a.) All the compunds are electrolytes, although not all of them are strong electrolytes. Compunds C and D are ionic and compund B is covalent.
b.) Nitrogen occurs in its highest possible oxidation state in compunds A and C; nitrogen occurs in its lowest oxidation state in compunds C,D, and E. The formal charge on both nitrogen in compund C is +1; the formal charge on the only nitrogen in compund B is 0.
c.) Compund A and E exist in solution. Both solutions give off gases. Comercially available concentrated solutions of compund A are normally 16 M. The commercial, concentrated solution of compound E is 15 M.
d) Commercial solutions of compund E are labeled witha misnomer that implies that a binary, gaseous compund of nitrogen and hydrogen reacted with watert to produce ammonium ions and hydroxide ions. Actually this reaction occurs to only a slight extent.
e) Compound D is 43.7% N and 50.0% O by mass. If compound D were a gas at STP, it would have a density of 2.86 g/L.
f) A formula unit of compund C has one more oxygen than a formula unit of compound D. Compounds C and A have one ion in common when compound A is acting as the strong electrolyte.
g) Solutions of C are weakly acidic; solutions of compound A are strongly acidic; solutions of compound B and E are basic. The titration of .726 g of compound B requires 21.98 ml of 1.000 M HCl for complete neutralization.
A) HNO3
B) Still don't understand
C) N2O2 or NO2 not sure
D) NO
E) NH3 any comments will greatly help
To identify the compounds and draw Lewis structures, let's break down the information given:
a) From the information given, we know that compounds C and D are ionic, compound B is covalent, and all the compounds are electrolytes. However, it doesn't specify if all the compounds are strong electrolytes.
b) Nitrogen occurs in its highest oxidation state in compounds A and C, and in its lowest oxidation state in compounds C, D, and E. In compound C, both nitrogens have a formal charge of +1, while in compound B, the formal charge on the nitrogen is 0.
c) Compounds A and E exist in a solution form and give off gases. The commercial concentrated solution of compound A is normally 16 M, while compound E is 15 M.
d) It is mentioned that compound E's commercial solution is labeled with a misnomer, suggesting a reaction with water. However, the reaction occurs to only a slight extent.
e) Compound D is composed of 43.7% nitrogen and 50.0% oxygen by mass. If it were a gas at STP, it would have a density of 2.86 g/L.
f) Compound C has one more oxygen than compound D, and compound C and A have one ion in common when compound A is acting as a strong electrolyte.
g) Solutions of compound C are weakly acidic, solutions of compound A are strongly acidic, and solutions of compound B and E are basic. The titration of 0.726 g of compound B requires 21.98 mL of 1.000 M HCl for complete neutralization.
Now, let's go through the compounds one by one to see if the proposed answers align with the given information:
A) HNO3 (Nitric Acid):
- The compound is a strong electrolyte, consistent with the given information.
- Nitrogen occurs in its highest possible oxidation state, consistent with the given information.
- Nitrogen has a formal charge of +1, consistent with the given information.
- Compound A exists in a solution form and is acidic, consistent with the given information.
- Compound A is a strong electrolyte and has one ion in common with compound C when acting as a strong electrolyte, consistent with the given information.
B) Still don't understand:
- Without additional information, it is difficult to determine compound B. More details are required to find a suitable compound.
C) N2O2 or NO2:
- Compound C is ionic, and one of the possibilities for that is Nitrogen Dioxide (NO2).
- Nitrogen in NO2 has a formal charge of +1, consistent with the given information.
- Compound C exists in a solution form and gives off gases, consistent with the given information.
- However, NO2 is a gas and not typically available in a concentrated solution form, so N2O2 would be a better match (Dinitrogen Dioxide).
- Compound C is weakly acidic, consistent with the given information.
D) NO (Nitric Oxide):
- Nitric Oxide (NO) is a possible compound that satisfies the given conditions.
- NO is an electrolyte, but not specified if it is a strong electrolyte.
- Nitrogen in NO has the lowest possible oxidation state, consistent with the given information.
- NO is a gas, consistent with the given information.
- NO is not labeled with a misnomer that implies the reaction with water, as stated in the given information.
E) NH3 (Ammonia):
- Ammonia (NH3) satisfies the given conditions.
- Ammonia is a weak base, consistent with the given information.
- However, the given information does not specify the percentages of nitrogen and oxygen composition in compound E, so it's difficult to determine if NH3 fits the mass composition mentioned.
- Compound E exists in a solution form and gives off gases, consistent with the given information.
- Compound E's commercial solution is labeled with a misnomer, consistent with the given information.
In summary, the proposed compounds are as follows:
A) HNO3 (Nitric Acid)
B) Unknown
C) N2O2 or NO2 (Dinitrogen Dioxide or Nitrogen Dioxide)
D) NO (Nitric Oxide)
E) NH3 (Ammonia)
Please note that compound B still needs to be determined based on the given information.