Studied by 0 people
Looks like no one added any tags here yet for you.
What is the definition of a mole?
A mole is the amount of a substance that contains as many particles (atoms, molecules, ions) as there are atoms in exactly 12 grams of carbon-12.
What do mole ratios from balanced equations tell us?
Mole ratios from balanced equations show the proportional relationships between the amounts of reactants and products in a chemical reaction.
What is Avogadro's number and what does it represent?
Avogadro's number is 6.022 x 10²³, representing the number of particles (atoms, molecules, ions) in one mole of a substance.
Define formula mass.
Formula mass is the sum of the atomic masses of all the atoms in a chemical formula.
What is molar mass (gram formula mass)?
Molar mass (gram formula mass) is the mass in grams of one mole of a substance.
How do you calculate the percent composition of an element in a compound?
(Mass of element in 1 mole of compound / Molar mass of compound) x 100%
How do you calculate the percent water in a hydrate?
(Mass of water in 1 mole of hydrate / Molar mass of hydrate) x 100%
What conversion factor is used to convert between particles and moles?
Avogadro's number (6.022 x 10²³ particles/mole)
What conversion factor is used to convert between mass and moles?
Molar mass (gram formula mass)
What conversion factor is used to convert between volume (at STP) and moles?
22.4 L/mole (for gases at standard temperature and pressure)
What are the steps for writing a chemical formula from a name?
Identify the ions present.
Write the symbols for the ions, including their charges.
Balance the charges using subscripts.
Write the formula, omitting the charges.
Sources and related content
Note 
Flashcard (78)