Question
What mass of chromium II chlroide (CrCl2) is dissolved in 150.0mL of solution to prepare .250M solution?
Please Help
Please Help
Answers
DrBob222
How many mols do you need? That's M x L = mols.
Then mols = grams/molar mass. You knopw mols and molar mass, solve for grams.
Then mols = grams/molar mass. You knopw mols and molar mass, solve for grams.
Jack
g=.00461 ?
DrBob222
I don't think so. I think that is off by a factor of 1000. You can check yourself this way.
mols CrCl2 = 0.00461g/122.9.
Then M = mols/0.150 and that is not 0.25M.
mols CrCl2 = 0.00461g/122.9.
Then M = mols/0.150 and that is not 0.25M.