Calculate the molar mass for each of the following: c. Fe(ClO₄)₃

Verified step by step guidance

1. Identify the elements in the compound Fe(ClO_4)_3: iron (Fe), chlorine (Cl), and oxygen (O).
2. Determine the number of each type of atom in the compound: 1 Fe, 3 Cl, and 12 O (since there are 3 ClO_4 groups, each containing 4 O atoms).
3. Find the atomic masses of each element from the periodic table: Fe = 55.85 g/mol, Cl = 35.45 g/mol, O = 16.00 g/mol.
4. Calculate the total mass contributed by each element: Fe = 1 x 55.85 g/mol, Cl = 3 x 35.45 g/mol, O = 12 x 16.00 g/mol.
5. Add the masses of all the elements together to find the molar mass of Fe(ClO_4)_3.

Key Concepts

Molar Mass

Molar mass is the mass of one mole of a substance, typically expressed in grams per mole (g/mol). It is calculated by summing the atomic masses of all the atoms in a chemical formula. Understanding molar mass is essential for converting between grams and moles, which is a fundamental concept in stoichiometry and chemical reactions.

Chemical Formula

A chemical formula represents the composition of a compound, indicating the types and numbers of atoms present. In the case of Fe(ClO₄)₃, the formula shows that one iron (Fe) atom is combined with three perchlorate (ClO₄) ions. Recognizing how to interpret chemical formulas is crucial for calculating molar mass and understanding the structure of compounds.

Atomic Mass

Atomic mass is the weighted average mass of an element's isotopes, measured in atomic mass units (amu). Each element has a specific atomic mass that contributes to the overall molar mass of a compound. For calculating the molar mass of Fe(ClO₄)₃, one must know the atomic masses of iron (Fe), chlorine (Cl), and oxygen (O) to accurately sum them based on the chemical formula.