Chapter 3: Textbook Flashcards
1
Q
What is a mol?
A
The amount of substance that contains the same number of entities as the number of atoms in 12g of carbon-12
2
Q
How are AMU related to g?
A
AMU of 1 mole and grams are nearly equivalent
3
Q
What is the molar mass of a substance?
A
The mass per a mol of its entities
4
Q
How do convert for Atoms, molecules, particles, or formula units to mols?
A
Divide by Avogadro’s number
5
Q
How do you find how many of an element in a formula unit?
A
Multiply the formula unit by the amount of the element in the formula
6
Q
What is the formula for mass % of an element?
A
(atoms of X in formula * atomic mass of X)/ (molecular mass of compound) all multiplied by 100
