Interpretation:
The number of moles and in gram present in ethyl alcohol
Concept Introduction:
The Mole and
•For convenience in considering reactions and calculating quantities, chemists think in terms of moles of substances.
•A mole is a quantity of particles defined as Avogadro’s number of particles or formula units of elements or compounds.
•The molecular or formula weight of a compound is the sum of the mass of all atoms in the formula.
•A mole also happens to be 22.4 L of an ideal gas under standard conditions, so 22.4 L of ideal gas represent one gram formula weight of the compound.
Gram-Mole Conversions
•A mole is defined as one gram formula or molecular weight of the compound. A mole is also defined as Avogadro’s number of formula units.
•It’s convenient to memorize and understand that the number of moles of a substance is equal to the number of grams divided by the gram formula weight.
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Fundamentals of General, Organic and Biological Chemistry Volume 1, 5th custom edition for Spokane Community College
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