SOLUTION: How much 15% acid solution should be added to 40 ml of a 6% solution to get a 7% acid solution?
Algebra.Com
Question 398372: How much 15% acid solution should be added to 40 ml of a 6% solution to get a 7% acid solution?
Found 2 solutions by stanbon, nerdybill:
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
How much 15% acid solution should be added to 40 ml of a 6% solution to get a 7% acid solution?
---------------
Equation:
acid + acid = acid
0.06*40 + 0.15x = 0.07(40+x)
----
Multiply thru by 100 to get:
6*40 + 15x = 7*40 + 7x
8x = 40
x = 5 ml (amt of 15% solution needed for the mix)
===================
Cheers,
Stan H.
Answer by nerdybill(7384) (Show Source): You can put this solution on YOUR website!
How much 15% acid solution should be added to 40 ml of a 6% solution to get a 7% acid solution?
.
Let x = amount of 15% acid solution added
then
.15x + .06(40) = .07(40+x)
.15x + 2.4 = 2.8 + .07x
.08x + 2.4 = 2.8
.08x = 0.4
x = 0.4/.08
x = 5 ml
RELATED QUESTIONS
Solve: How many ml of a 70% acid solution must be added to a 30% acid solution to get 100 (answered by ankor@dixie-net.com)
how much of a 14% acid solution should be added to 20 ml of a 8% acid solution to... (answered by josgarithmetic)
How much 30% acid solution should be added to 10% acid solution to make 100 ml of a 12%... (answered by stanbon)
How much 36% acid solution should be added to 8% acid solution to make 224 mL of a 10%... (answered by josgarithmetic)
how much 10% acid solution should be added to 30 liters of 25% acid solution to achieve a (answered by stanbon)
how much pure acid should be mixed with 3 gallons of 20% acid solution to get a 40% acid... (answered by tommyt3rd)
a bottle contains 24 oz of a solution that is 15% acid how much acid should be added to... (answered by josgarithmetic)
How much pure acid should be mixed with 6 gallons of a 20% acid solution in order to get... (answered by josgarithmetic)
How many mL of a 20% acid solution must be added to 40 mL of a 75% acid solution to... (answered by josgarithmetic)