Asked by Monique
If im given mass percent and mass solvent how do I find mass solute and mass solution.
example: Mass percent = 3.8% and Mass solvent 45.8 g.
Find mass solute and mass solution
example: Mass percent = 3.8% and Mass solvent 45.8 g.
Find mass solute and mass solution
Answers
Answered by
DrBob222
You can do it one of two ways but both are mathematically the same.
Let X = mass solute.
(X)/(X+45.8) = 0.038 and solve for X.
X = solute and
X+45.8 = mass soln.
The other way is just as easy.
3.80% w/w means 3.80g solute/100 g soln = 3.80g/(3.80+96.2)
Since you have 45.8 g solvent, then
3.80 x (45.8/96.3) = 1.809g solute (I know that's too many significant figures).
You can check that.
[1.809/(1.809+45.8)]*100 = 3.80%
mass soln = 1.809+45.8 = ?
Let X = mass solute.
(X)/(X+45.8) = 0.038 and solve for X.
X = solute and
X+45.8 = mass soln.
The other way is just as easy.
3.80% w/w means 3.80g solute/100 g soln = 3.80g/(3.80+96.2)
Since you have 45.8 g solvent, then
3.80 x (45.8/96.3) = 1.809g solute (I know that's too many significant figures).
You can check that.
[1.809/(1.809+45.8)]*100 = 3.80%
mass soln = 1.809+45.8 = ?
Answered by
Monique
where did you get the 96.2
Answered by
DrBob222
A 3.80% w/w solution means 3.80 g solute in 100 g soln. The 100 g solution consists of 3.80 g solute and water(solvent) so the solvent must be 100-3.80 = 96.2g.
There are no AI answers yet. The ability to request AI answers is coming soon!
Submit Your Answer
We prioritize human answers over AI answers.
If you are human, and you can answer this question, please submit your answer.