Equations Flashcards
1
Q
Equation for finding moles using mass
A
moles = mass / molar mass
2
Q
Find the molar mass of a compound of 60% x-Y and 40% x-W?
A
[(Y60)+(W40) ] / 2
3
Q
How many get from degrees to Kelvin
A
-273 degree = 0 Kelvin
X degrees = Y Kelvin -273
4
Q
How many get from Pascal to ATM
A
1ATM = Pa / 101 000
5
Q
How to get pressure from volume, moles, temperature and a constant?
A
pV = nRT
6
Q
What do the letters stand for in pV = nRT and their units
A
p = pressure in Pascals V = volume in m3 n = moles R = Gas constant 8.314 T = Temperature in Kelvin
7
Q
How many moles occupy 24000cm3 of gas
A
1 mole
8
Q
How to find moles in a titration
A
n = (V*C) / 1000 n = moles V = volume (cm3) C = concentration (moles/dm3)
9
Q
How to find the moles in a gas
A
moles = volume in cm3/ 24000cm3
10
Q
How many cm3 in 1dm3
A
1000cm3 is in 1dm3
11
Q
How many cm in 1dm
A
10cm in 1dm
12
Q
How many cm in 1m
A
100 in 1m
13
Q
How many dm in 1m
A
10dm in 1m
14
Q
How many cm2 in 1dm2
A
100cm2 in 1dm2
15
Q
How many cm2 in 1m2
A
10000cm2 = 1m2
