Chapter 2 Flashcards
1
Q
Density
A
Density equals mass divided by volume.
2
Q
Percentage by mass
A
Most common form of percentage used in chemical descriptions. It is a value that tells us the number of mass units of the part for each 100 mass units of the whole.
3
Q
Unit analysis
A
A general technique for doing unit conversions.
4
Q
Conversion factor
A
A ratio that describes the relationship between two units.
5
Q
Sig figs
A
The number of meaningful digits in a value. The number of sig figs in a value reflects the value’s degree of uncertainty. A larger number of sig figs indicates a smaller degree of uncertainty.
