SOLUTION: how many litres of 10% solution of acid should be added to 20 litres of a 60% solution of acid to obtain a 50% solution?
Algebra.Com
Question 462097: how many litres of 10% solution of acid should be added to 20 litres of a 60% solution of acid to obtain a 50% solution?
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
how many litres of 10% solution of acid should be added to 20 litres of a 60% solution of acid to obtain a 50% solution?
-------------------
Equation:
acid + acid = acid
0.10x + 0.60*20 = 0.50(x+20)
------------------------
Multiply thru by 100 to get:
10x + 60*20 = 50x + 50*20
40x = 10*20
x = 5 litres (amt. of 10% solution needed)
=============
Cheers,
Stan H.
RELATED QUESTIONS
How many litres of a 30% acid solution should be added to 20 litres of a 60% acid... (answered by mananth)
How many litres of a 30% acid solution should be added to 20 litres of 60% acid solution... (answered by ankor@dixie-net.com)
How many liters of 10% acid solution should be added to 20 liters of 60% solution of acid (answered by richwmiller)
How many liters of a 10% acid solution must be mixed with a 50% acid solution in order to (answered by richwmiller)
How many litres of water must be added to 50 L of a 30% acid solution in order to produce (answered by stanbon)
How many gallons of a 60% solution of nitric acid should be added to 10 gallons of a 30%... (answered by josgarithmetic)
How many liters of 60% solution of sulfuric acid should be added to 10 liters of a 30%... (answered by stanbon)
a 10% acid solution is to be mixed with a 50% solution to get 200 litres of a 20%... (answered by NancyLam)
How many liters of a 10% solution of acid should be mixed with 60% solution of acid to... (answered by ewatrrr)