What is the formula to calculate the amount of chemical to add per spray tank?

What is the formula to calculate the amount of chemical to add per spray tank?

• A. Number of acres / rate of chemical to be applied per acre
• B. Tank size in gallons times GPA
• C. Number of acres multiplied by rate of chemical to be applied per acre
• D. Tank size in gallons minus GPA

Answer: (C)

To figure out how much chemical to add to a spray tank, you multiply the area you plan to treat by the application rate per unit area. In other words, total chemical needed = acres × rate per acre. This gives the total amount of chemical to mix into the tank, using the label’s rate (whether it’s gallons per acre, pounds per acre, or ounces per acre) multiplied by the number of acres. For example, 5 acres at 3 gallons per acre requires 15 gallons of chemical in the tank. The calculation uses the rate per acre and the area; dividing by the rate or subtracting from the tank size doesn’t yield a valid total for the chemical.

To figure out how much chemical to add to a spray tank, you multiply the area you plan to treat by the application rate per unit area. In other words, total chemical needed = acres × rate per acre. This gives the total amount of chemical to mix into the tank, using the label’s rate (whether it’s gallons per acre, pounds per acre, or ounces per acre) multiplied by the number of acres. For example, 5 acres at 3 gallons per acre requires 15 gallons of chemical in the tank. The calculation uses the rate per acre and the area; dividing by the rate or subtracting from the tank size doesn’t yield a valid total for the chemical.