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23 Cards in this Set

  • Front
  • Back
The sum of the relative atomic masses of each of the atoms in a molecule.
What does the avagadro number mean?
The number of particles in one mole of substance. 6.022 x 10^23
What do the same numbers of moles of different substances have in common?
The same number of particles.
Define the mole.
The number of particles in 12g of Carbon-12.
Define the term molar mass.
Mass per mole of substance (kg mol^-1). Same numerically as M^r.
What is the formula for calculating moles (n)?
What is the ideal gas equation?
Define the term empirical formula.
The simplest, whole number, ratio of elements in a compound.
Define the term molecular formula.
The exact number of atoms of each element in the formula of a compound.
How do you find the molecular formula?
Relative molecular mass/relative mass of empirical formula.
What is the formula for calculating concentration.
What is the formula for calculating atom economy?
Calculate the atom economy for the methanol in the following equation.
What is the formula for calculating percentage yield?
State the basic assumptions about ideal gas equation.
>Made up of identical particles in continuous random motion
>Particles do not react when they collide
>Collisions between particles are perfectly elastic
>Particles have no intermolecular forces