Chapter 3, Problem 50A

Ammonia Production A 28.0-g sample of nitrogen gas combines completely with 6.0 g of hydrogen gas to form ammonia. What is the mass of ammonia formed?

Interpretation Introduction

Interpretation:

The mass of formed ammonia needs to be determined.

Concept introduction:

The compound is made up of two or more than two different elements. The compound mass is equal to the mass of both elements. If the compound is composed of only two types of elements the mass of the compoundis calculated by using this formula-

$\text{Mass}\text{of}\text{compound}\text{=}\text{Mass}\text{ofelement}\text{I+}\text{Mass}\text{ofelement}\text{II}$

Answer to Problem 50A

The mass of ammonia is $\text{34}\text{.0}\text{g}$.

Explanation of Solution

Given information:

Mass of nitrogen is $\text{28}\text{.0}\text{g}$ and the mass of hydrogen is $\text{6}\text{.0}\text{g}$ in the sample.

The mass of the product is calculated as −

Mass of compound = Mass of element $I+$ Mass of element $II$

Mass of nitrogen = $\text{28}\text{.0}\text{g}$

Mass of hydrogen = $\text{6}\text{.0}\text{g}$

Mass of ammonia = Mass of nitrogen + Mass of hydrogen

$\text{ = 28}\text{.0}\text{g}\text{+}\text{6}\text{.0}\text{g}$

$\text{= 34}\text{.0}\text{g}$

Conclusion

The mass of ammonia $\text{=}\text{34}\text{.0}\text{g}$.