Asked by mustafa
What is the percent concentration of 0.4 M K2SO4 solution? Atomic mass: K-39g,S-32g, O-16g
Answers
Answered by
bobpursley
well, molarity is moles/liter
so somehow we have to turn liters of solution to mass.
grams of solute=2*39+32+64 * .4=179*.4=
grams of solute=71.6 grams check that.
approximate grams of water=1000.
So looking at those, it appears the density of the solution is very close to that of water, which gives us the mass of solution close to 1000 grams
Percent concentration=79.4/1000
The bottom line here is that you get a liter of solultion by sufficient water to bring the volume up to 1liter. Without its density it is impossible to calculate its mass. It most certainly is NOT 1000+79
so somehow we have to turn liters of solution to mass.
grams of solute=2*39+32+64 * .4=179*.4=
grams of solute=71.6 grams check that.
approximate grams of water=1000.
So looking at those, it appears the density of the solution is very close to that of water, which gives us the mass of solution close to 1000 grams
Percent concentration=79.4/1000
The bottom line here is that you get a liter of solultion by sufficient water to bring the volume up to 1liter. Without its density it is impossible to calculate its mass. It most certainly is NOT 1000+79
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.