---
title: "A fertilizer manufacturer is comparing four pure compounds that can be used as nitrogen sources.  | Compound | Formula | |—|—| | Urea | \\(\\text{CO}(\\text{NH}_2)_2\\) | | Ammonium nitrate | \\(\\text{NH}_4\\text{NO}_3\\) | | Ammonium sulfate | \\((\\text{NH}_4)_2\\text{SO}_4\\) | | Potassium nitrate | \\(\\text{KNO}_3\\) |  Equal masses of the compounds will be used in separate fertilizer batches. Which of the following ranks the compounds from greatest to least mass percent nitrogen?"
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url: "https://nerd-notes.com/ubq/119363/"
date_modified: "2026-08-19T12:40:00+00:00"
---

# A fertilizer manufacturer is comparing four pure compounds that can be used as nitrogen sources.

| Compound | Formula |
|—|—|
| Urea | \(\text{CO}(\text{NH}_2)_2\) |
| Ammonium nitrate | \(\text{NH}_4\text{NO}_3\) |
| Ammonium sulfate | \((\text{NH}_4)_2\text{SO}_4\) |
| Potassium nitrate | \(\text{KNO}_3\) |

Equal masses of the compounds will be used in separate fertilizer batches. Which of the following ranks the compounds from greatest to least mass percent nitrogen?

A fertilizer manufacturer is comparing four pure compounds that can be used as nitrogen sources.

| Compound | Formula |
|---|---|
| Urea | \(\text{CO}(\text{NH}_2)_2\) |
| Ammonium nitrate | \(\text{NH}_4\text{NO}_3\) |
| Ammonium sulfate | \((\text{NH}_4)_2\text{SO}_4\) |
| Potassium nitrate | \(\text{KNO}_3\) |

Equal masses of the compounds will be used in separate fertilizer batches. Which of the following ranks the compounds from greatest to least mass percent nitrogen?

- **A.** \(\text{CO}(\text{NH}_2)_2 > \text{NH}_4\text{NO}_3 > \text{KNO}_3 > (\text{NH}_4)_2\text{SO}_4\)
- **B.** \(\text{CO}(\text{NH}_2)_2 > \text{NH}_4\text{NO}_3 > (\text{NH}_4)_2\text{SO}_4 > \text{KNO}_3\)
- **C.** \(\text{KNO}_3 > (\text{NH}_4)_2\text{SO}_4 > \text{NH}_4\text{NO}_3 > \text{CO}(\text{NH}_2)_2\)
- **D.** \((\text{NH}_4)_2\text{SO}_4 > \text{KNO}_3 > \text{NH}_4\text{NO}_3 > \text{CO}(\text{NH}_2)_2\)

*The answer key and step-by-step explanation are available to logged-in users at https://nerd-notes.com/ubq/119363/*