For many years chloroform (CHCl3) was used as an inhalation anesthetic in spite of the fact that

step 1 So in this question, we are given chloroform, and we are asked to determine the percent composit

For many years chloroform (CHCl3) was used as an inhalation...

For many years chloroform $\left(\mathrm{CHCl}_{3}\right)$ was used as an inhalation anesthetic in spite of the fact that it is also a toxic substance that may cause severe liver, kidney, and heart damage. Calculate the percent composition by mass of this compound.

Key Concepts

Molar Mass Calculation

Molar mass calculation involves summing the atomic masses of all the atoms present in the molecular formula. This total mass is referred to as the molar mass and is typically expressed in grams per mole. It forms the denominator in percent composition calculations as it represents the overall mass of one mole of the compound.

Percent Composition by Mass

Percent composition by mass quantifies the percentage of the total mass of a compound that is contributed by each element. It is calculated by taking the mass of the specific element (from its atomic mass multiplied by the number of atoms in the formula), dividing it by the total molar mass, and multiplying the result by 100. This concept is useful in both analytical and synthetic chemistry for understanding the makeup of substances.

Molecular Formula

The molecular formula of a compound represents the exact number and types of atoms present in a molecule. Understanding the molecular formula is essential because it provides the basis for calculating the molar mass and the individual contributions of each element in the compound.

Atomic Masses

Atomic masses are the weighted average masses of atoms of an element, measured in atomic mass units (amu), and are found on the periodic table. They are fundamental for determining the mass contribution of each element in a compound by providing the mass per atom or per mole of atoms.

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