LAB C Flashcards
1
Q
Go over any calculations from Lab C in Workbook
A
2
Q
what are gas bubbles made of
A
hydrogen gas
3
Q
Patm equation
A
Patm=Px + Px + Pcolumn
4
Q
P column equation
A
column in mm x 0.07370 torr/mm h20 (mm will cancel. out leaving torr)
5
Q
how to find the column and why
A
-used to convert pressure of column to torr at 20
-measured by height of water in buret to top of water in flasks
6
Q
why do we over flow the water in buret
A
no air bubbles
7
Q
what happens if we had air bubbles
A
-increase the volume from the air bubble dropping when released
-more neg
8
Q
define accuracy and ways to improve it.
A
how close a measurement is to accepted value
-practice, technique
9
Q
molar mass formula
A
mass of solute/ moles of solute
