how do you change from gram per dm^3 to mole per dm^3?
Learnt it last year, but i have completely forgotten it! :P Thanks a lot though! :)
- Lee Wang TuiLv 79 years agoFavorite Answer
Divide it by its molecular mass,
m/V = gram/dm^3
n/V = (m/Mr)/V = mol/dm^3
n = m/Mr
- UmarLv 79 years ago
Mole per dm3 = wt of given compound/molar mass of the compound. When this amount is dissolved in 1L we have a solution containing 1mole per dm3.
Example a solution containing 25g NaOH/dm3 = 25/40 = 0.625mole NaOH per dm3
- 9 years ago
I learned factor labeling (i think thts wat its called)
g/dm^3 * mol/g = mol/dm^3
when u multiply by mol/g, the two "g" cancel out. I believe molar mass is g/mol so just multiply by the inverse of that since you want mols on top and the grams to cancel outSource(s): CHEM AP
- Anonymous9 years ago