Mathematics
OpenStudy (anonymous):

Algebra Mixture: a chemist has 80 ml of a solution containing 20% acid. How many ml must he romove and replace with pure acid to obtain a 40% solution of acid?

OpenStudy (apoorvk):

well. so i am assuming that is 20% V/V. so, 80 ml has 20% acid - what is the volume of acid in those 80 mls then?

OpenStudy (anonymous):

the question doesn't include the volume

OpenStudy (anonymous):

Do you know the right answer?

OpenStudy (anonymous):

No :(

OpenStudy (mertsj):

Let x = the amount of pure acid to be added .20(80-x)+1.00x=.40(80)

OpenStudy (anonymous):

Tysm you really helped me! I get it now :)

OpenStudy (mertsj):

OpenStudy (anonymous):

x=20

OpenStudy (mertsj):

Good job!!

OpenStudy (anonymous):

thnx xD

OpenStudy (anonymous):

|dw:1338160420201:dw| $\frac 14 \times 80 = 20 L$

Latest Questions
Destinee92: A research article states
10 seconds ago 2 Replies 0 Medals
koenko: how do you draw hair for a anime girl
43 minutes ago 21 Replies 2 Medals
MrsHero: What is 24 in standard form?
3 hours ago 10 Replies 0 Medals
jstarlingcarter0508: Ingrid collected 6 cans of food and 18 boxes of food for the food bank. Which des
3 hours ago 5 Replies 0 Medals
MrsHero: Multiply. 102 u00d7 315 3,150,000 31,500 315,000 3,150
3 hours ago 11 Replies 3 Medals
AdrienneAalliyah123: What should I draw cs mt art teacher is giving me boring things to do .?
15 minutes ago 22 Replies 5 Medals
AdrienneAalliyah123: What should I draw cs mt art teacher is giving me boring things to do .?
3 hours ago 3 Replies 0 Medals