Calculate the following quantities: (d) number of N atoms in 0.410 mol NH₃

Key Concepts

Mole Concept

The mole is a fundamental unit in chemistry that quantifies the amount of substance. One mole contains approximately 6.022 x 10²³ entities, such as atoms or molecules. This concept allows chemists to convert between the mass of a substance and the number of particles it contains, facilitating calculations in stoichiometry.

Chemical Formula

A chemical formula represents the composition of a compound, indicating the types and numbers of atoms present. For ammonia (NH₃), the formula shows that each molecule contains one nitrogen atom and three hydrogen atoms. Understanding chemical formulas is essential for determining the number of specific atoms in a given amount of substance.

Stoichiometry

Stoichiometry is the area of chemistry that deals with the relationships between the quantities of reactants and products in chemical reactions. It allows for the calculation of the number of atoms, molecules, or moles of a substance based on the balanced chemical equation. In this case, stoichiometry helps determine the number of nitrogen atoms in a specified amount of ammonia.