To have a constant concentration of .25 ppm of a substance with 18,000gal/water flowing, how much would I need to add per minute?
Does that make any sense?
How would I go about answering that? I don't want the answer, but maybe just a push in the right direction because I have NO idea.
To determine how much of a substance you would need to add per minute in order to maintain a constant concentration of 0.25 parts per million (ppm) in 18,000 gallons of flowing water, you can follow these steps:
1. Understand the problem: To maintain a constant concentration of 0.25 ppm, you need to continuously add a certain amount of the substance to the flowing water.
2. Define the problem: The problem requires finding the rate at which the substance needs to be added to the water, measured in quantity per minute.
3. Set up the equation: Let x be the quantity of the substance (in gallons) that needs to be added per minute. Since the concentration is given in ppm, it means that for every 1 million parts (gallons) of water, there should be 0.25 parts of the substance. Therefore, x gallons of the substance need to be added per 1 million gallons of water.
4. Use the given information: In this case, you have 18,000 gallons of water flowing. To find out how much of the substance needs to be added per minute, you'll need to determine the ratio between 18,000 gallons and 1 million gallons. This will help you scale the rate of addition accordingly.
5. Solve the equation: To find the amount of the substance needed per minute, set up a proportion by equating the ratios:
x gallons / 1 million gallons = ? gallons / 18,000 gallons
Cross-multiply and solve for "? gallons":
x * 18,000 = 1 million * ?
Then, divide both sides of the equation by 18,000 to find the value of "? gallons", which represents the amount of the substance that needs to be added per minute to maintain a concentration of 0.25 ppm.
6. Simplify and calculate: Once you've solved the equation, simplify the expression and perform the necessary calculations to find the value of "? gallons."
Remember, this explanation outlines the steps and thinking process to solve the problem conceptually. To obtain the final numerical answer, you'll need to plug in the values into the equation and perform the calculations.