Chapter 3 Flashcards
1
Q
How to do percent composition
A
mass of part divided by total mass times 100
2
Q
What is Avogardo number
A
6.02e23 particles
3
Q
Empirical Formula
A
the simplest whole-number ratio
4
Q
Molecular Formula
A
The compound before the simplest whole-number ratio
5
Q
How do you find empirical formulas from percent composition
A
percent to mass, mass to moles, divide by small, multiply till whole
6
Q
What are ions that are always aqueous
A
Group One, NO3, NH4
7
Q
What does insoluble mean?
A
Solid
