A surfactant label states to add 4 ounces per 100 gallons of spray mix. How many quarts will you add for a 1500-gallon tank?

• A. 1.5 quarts
• B. 1.87 quarts
• C. 2 quarts
• D. 2.5 quarts

Answer: (B)

To determine how many quarts of surfactant to add for a 1500-gallon tank, we start by understanding the ratio provided on the label, which indicates adding 4 ounces of surfactant for every 100 gallons of spray mix.

First, we need to find out how many 100-gallon increments are in 1500 gallons. This is calculated by dividing 1500 by 100, which gives us 15. So, for a 1500-gallon tank, we have 15 increments of 100 gallons.

Next, we multiply the 4 ounces of surfactant required for each increment by 15:

4 ounces × 15 = 60 ounces.

Now, to convert ounces to quarts, we need to remember that there are 32 ounces in a quart. We now divide the number of ounces by the amount in one quart:

60 ounces ÷ 32 ounces/quart = 1.875 quarts.

Since the most accurate answer choice provided is 1.87 quarts, this is the correct amount to add to the 1500-gallon tank. The calculations confirm that when you scale up the surfactant requirement according to the total tank volume, you arrive at this