A solution is made by mixing 4 liters of a 20% acid solution with 6 liters of a
Practice Questions
Q1
A solution is made by mixing 4 liters of a 20% acid solution with 6 liters of a 30% acid solution. What is the concentration of acid in the final mixture?
24%
26%
28%
30%
Questions & Step-by-Step Solutions
A solution is made by mixing 4 liters of a 20% acid solution with 6 liters of a 30% acid solution. What is the concentration of acid in the final mixture?
Step 1: Calculate the amount of acid in the 20% solution. Multiply 4 liters by 0.20 (20%). This gives you 0.8 liters of acid.
Step 2: Calculate the amount of acid in the 30% solution. Multiply 6 liters by 0.30 (30%). This gives you 1.8 liters of acid.
Step 3: Add the amounts of acid from both solutions together. 0.8 liters + 1.8 liters = 2.6 liters of acid in total.
Step 4: Calculate the total volume of the mixture. Add the volumes of both solutions together. 4 liters + 6 liters = 10 liters total volume.
Step 5: Calculate the concentration of acid in the final mixture. Divide the total amount of acid (2.6 liters) by the total volume (10 liters) and multiply by 100 to get a percentage. (2.6 / 10) * 100 = 26%.
Concentration Calculation – Understanding how to calculate the concentration of a solution by combining volumes and percentages of different solutions.
Mixture Problems – Applying knowledge of mixing solutions to find the resulting concentration.
