Units 3 & 4 Flashcards
(7 cards)
1
Q
How is Natural Abundance Measured?
A
Mass spectrometers. Ion beam intensity vs mass number.
Intensity = abundance of the isotope in a sample.
2
Q
How to calculate weighted average mass with isotopes
A
Average mass = (m1 x f1) + (m2 x f2) …
3
Q
Solubility Rule #1
A
Nitrate salts are soluble.
4
Q
Solubility Rule #2
A
Most salts containing an alkali metal or ammonium ion are soluble.
5
Q
Solubiliy Rule #3
A
Most chlorine salts are soluble
EXCEPTIONS: AgCl, PbCl2, Hg2Cl2
6
Q
The seven strong acids.
NAMES AND FORMULAS
A
- HCl: hydrochloirc acid
- HBr: hydrobromic acid
- HI: hydroiodic acid
- H2SO4 sulfuric acid
- HClO4: perchloric acid
- HClO3: chloric acid
- HNO3: nitric acid
7
Q
3 Strong Bases
A
NaOH
KOH
LiOH
