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What is the conversion factor relating volume and moles called? Write the relationship or the conversion factor.?
- lenpol7Lv 73 weeks ago
Remember there are three equations relating to moles. they are:-
moles(solids) = mass(g) / Mr
moles (liquids)= [conc] x vol(mL) / 1000
moles(gases) = PV/RT
These three equations are mathematically interchangeable. e.g.
mass(g)/Mr = PV/RT
However, the conversion fctor for liquids is
moles = [conc] x vol(mL) / 1000
NB The '1000' is needed to convert 'mL' to 'L/dm^3' because conc'n is quoted in 'moles dm^-3' or 'mole L^-1'.
NB 'dm^3 and 'L' are the same volume with different names.
- ?Lv 71 month ago
As previous responders answered, it's the molar volume; for gases, it's calculated using the ideal gas equation:
PV = nRT
Rearrange that to:
n/V = P/(RT)
(P, V, T, and R are in appropriate units to give moles/L)
For liquids and solids, it's calculated from the density (p [Greek rho], in g/mL)) and molecular (or formula) weight (MW, in g/mole) for a given substance:
Molar Volume (mole/L) = (p/(MW)) x (1000 mL/L)
- JimLv 71 month ago
Ideal Gas Law: PV=nRT
n is moles, R is gas constant (use the correct one!),
T is the temp in K (C+273.15)
V is the volume in Litres
- Dr WLv 71 month ago
you'll need to be more specific
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- Roger the MoleLv 71 month ago
If we're talking about the volume of a gas, the requested relationship is called the molar volume.
At 1 atm and 0°C,
22.4 L = 1 mole
[If we're talking about liquids or solids there is no direct conversion factor between volume and moles. The conversion can be made, but it is a multi-step process which requires more than one factor.]
- ZirpLv 51 month ago
There isn't any. Mole is a number , like million is
How many moles of molecules fit in a liter depends on the density of the substance, aka the size and shape of the molecules