Chapter 3 Flashcards
What is the definition of Relative Atomic Mass (RAM)?
The average mass of an atom of the element compared to 1/12 of the mass of one carbon-12 atom.
What does Relative Molecular Mass (RMM) refer to?
The average mass of the molecule compared to 1/12 of the mass of one carbon-12 atom.
How is Relative Formula Mass (RFM) defined?
The relative mass of an ionic substance.
What is Avogadro’s constant?
6.022×10²³ particles/mol.
What is molar mass?
The mass of one mole of a substance, measured in grams per mole (g/mol).
Write the formula for converting moles to mass.
Mass(g)=Moles × MolarMass(g/mol).
: How do you calculate the number of particles from moles?
Numberofparticles = Moles × 6.022×10²³
What is the formula for molar concentration?
Concentration(mol/dm³)
What is the empirical formula?
The simplest whole-number ratio of atoms in a compound.
What is a molecular formula?
A molecular formula shows the actual number of atoms of each element present in a molecule of a compound.
Definition of Chemical Formula
Is a representation of a chemical substance using alphabets to represent the atoms and subscript numbers to show the number of each type of atoms found in the elementary entities of the substance.
