3.1.2.4 Empirical and molecular formuka + % uncertainty Flashcards
1
Q
What is empirical formula?
A
The simplest whole number ratio of atoms of elements in a compound.
2
Q
What is the molecular formula?
A
The actual number of atoms of elements in a compound.
3
Q
What is a measurement?
A
A reading taken 2 or more times.
(A reading is only taken once)
4
Q
Which apparatus takes readings?
A
Thermometer
Measuring cylinder
pH probe
Volumetric flask
5
Q
Which apparatus takes measurements?
A
Burette
Scale
Rulers
Stopwatch
