Flashcards in Chapter 2 - Amount Of Substance Deck (12)
What is the Avogadro constant?
The number of particles in one mole of anything. 6.022 x10²³
What is the molecular formula?
The molecular formula is the actual amount of each atom in a compound.
Define the term “empirical formula”
The simplest whole number ratio of the different atoms in a compound.
What is the relative formula mass of an atom?
The average mass of an atom compared to 1/12th the mass of a carbon 12 atom.
State the ideal gas equation.
pV = nRT
What is relative molecular mass?
The average mass of a molecule compared to 1/12th the mass of a carbon 12 atom.
What unit of temperature is required when using the ideal gas equation?
What units are used for volume when using the ideal gas equation?
What are the conversion units between cm³, dm³ and m³?
cm³ x10³ = dm³
dm³ x10³ = m³
cm³ x10⁶ = m³
How do you calculate mass using Mr (RFM) and moles?
Mass = Mr x moles
How do you calculate moles when given concentration and volume?
Moles = concentration x volume