Final answer:
To find the resulting concentration of acid, use the concept of dilution. Calculate the initial amount of acid, then use the dilution equation to find the resulting concentration.
Step-by-step explanation:
To find the resulting concentration of acid in the container, we can use the concept of dilution.
First, we need to determine the amount of acid in the initial 50-liter container. Since the concentration of acid is 40%, we have:
Initial amount of acid = 40% of 50 liters = 0.4 * 50 = 20 liters
Next, we need to calculate the amount of acid in the x liters that are removed from the container. Since we're removing x liters, the new amount of acid remaining in the container is 20-x liters.
When x liters are removed and replaced with 100% acid, the amount of acid in the container remains the same at 20 liters, but the total volume decreases by x liters. So the resulting concentration of acid in the container is:
Resulting concentration = (20 liters / (50 liters - x liters)) * 100%
Therefore, the resulting concentration of acid in the container depends on the value of x, the number of liters removed.