SOLUTION: please help me the question is a take home test. in chemistry class, 9 liters of a 4% SILVER IODIDE solution must be mixed with a 10% solution to get a 6% solution. how many li

Question 98983: please help me the question is a take home test.
in chemistry class, 9 liters of a 4% SILVER IODIDE solution must be mixed with a 10% solution to get a 6% solution. how many liters of the 10% solution are needed?
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
in chemistry class, 9 liters of a 4% SILVER IODIDE solution must be mixed with a 10% solution to get a 6% solution. how many liters of the 10% solution are needed?
-----------------
4% solution DATA;
Amount = 9 liter ; amt of active ingredient = 0.04*9= 0.36 liter
---------------
10% solution DATA:
Amount = x liter ; amt of active ingredient = 0.10x
-----------------
6% Mixture DATA:
Amount = 9+x liter; amt of active ingredient = 0.06(9+x)=0.54+0.06x liter
======================
EQUATION:
active + active = active
0.36 + 0.10x = 0.54 + 0.06x
0.04x = 0.18
x = 4.5 liter (amt of 10% solution that must be added to get the mixture)
==================
Cheers,
Stan H.
RELATED QUESTIONS
Please help In a chemistry class, 6 liters of a 4% silver iodide solution must be... (answered by longjonsilver)

In a chemistry class, 9 liters of a 4% silver iodide solution must be mixed with a 10%... (answered by josmiceli)

In a chemistry class, 9 liters of a 4% silver iodide solution must be mixed with a 10%... (answered by checkley77)

In a chemistry class, 5 liters of a 4% silver iodide solution must be mixed with a 10%... (answered by amoresroy)

In chemistry class, 5 liters pf a 4% silver iodide solution must be mixed with a 10%... (answered by stanbon)

This is from a worksheet: In a chemistry class, 6 liters of a 4% silver iodide solution... (answered by stanbon)

I'm having some problems and need help. In a chemistry class, 3 liters of a 4% silver... (answered by ankor@dixie-net.com)

in a chemistry class, 9 liters of a 40% silver iodide solution must be mixed with a 10%... (answered by josgarithmetic)

"in a chemistry class, 7 liters of a 4% silver iodide solution must be mixed with a 10%... (answered by stanbon)