SOLUTION: 7 L of an acid solution was mixed with 3 L of a 15% acid solution to make a 29% acid solution. Find the percent concentration of the first solution.
9 lbs. of mixed nuts conta
Algebra.Com
Question 1041414: 7 L of an acid solution was mixed with 3 L of a 15% acid solution to make a 29% acid solution. Find the percent concentration of the first solution.
9 lbs. of mixed nuts containing 55% peanuts were mixed with 6 lbs. of another kind of mixed nuts that contain 40% peanuts. What percent of the new mixture is peanuts?
A solution containing 30% chicken broth is to be mixed with a solution containing 50% chicken broth to make 200L containing 42% chicken broth. How much of each solution should be mixed?
House blend coffee is 50% Columbian beans and Special blend coffee is 80% Columbian beans. How much of each should be used to produce 100kg of a blend that is 68% Columbian beans?
How many quarts of a 50% sugar solution must be mixed with 8 quarts of water to make a 10% solution?
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
7 L of an acid solution was mixed with 3 L of a 15% acid solution to make a 29% acid solution. Find the percent concentration of the first solution.
acid + acid = acid
(x/100)*7 + 0.15*3 = 0.29*(7+3)
-------
Multiply thru by 100 to get:
7x + 45 = 290
7x = 245
x = 35
---
Ans:: 35%
-----------------------------
9 lbs. of mixed nuts containing 55% peanuts were mixed with 6 lbs. of another kind of mixed nuts that contain 40% peanuts. What percent of the new mixture is peanuts?
peanuts + peanuts = peanuts
0.55*9 + 0.40*6 = x(9+6)
Multiply thru by 100 to get
55*9 + 40*6 = 1500x
x = 49%
--------------------
Comment:: The three problems below can be worked in a similar manner.
Cheers,
Stan H.
------------
A solution containing 30% chicken broth is to be mixed with a solution containing 50% chicken broth to make 200L containing 42% chicken broth. How much of each solution should be mixed?
House blend coffee is 50% Columbian beans and Special blend coffee is 80% Columbian beans. How much of each should be used to produce 100kg of a blend that is 68% Columbian beans?
How many quarts of a 50% sugar solution must be mixed with 8 quarts of water to make a 10% solution?
RELATED QUESTIONS
3 L of an acid solution was mixed with 7 L of a 20 % acid solution to make a 41 % acid... (answered by josgarithmetic)
7 liters of an acid solution was mixed with 3 liters of a 15% acid solution to make a 29% (answered by josgarithmetic)
7l of an acid solution was mixed with 3l of a 15% acid solution to make a 29% acid... (answered by josgarithmetic)
2 ml of an acid solution was mixed with 3 ml of a 85% acid solution to make a 79% acid... (answered by josmiceli)
A chemistry student wants to mix an 13% acid solution with a 51% acid solution to g 13L... (answered by checkley77)
how much of a 25% acid solution should be mixed with 5 L of a 15% acid solution to obtain (answered by Alan3354,Edwin McCravy)
How many liters of a 90% acid solution must be mixed with a 15% acid solution to get 525... (answered by josgarithmetic)
how many liters of a 60% acid solution must be mixed with a 15% acid solution to get 405... (answered by ankor@dixie-net.com)
How many liters of a 50% acid solution must be mixed with a 15% acid solution to get 350... (answered by ikleyn)
how many liters of a 60 acid solution must be mixed with 15% acid solution to get 360 l... (answered by josgarithmetic)