How many gallons of 25 percent emulsifiable concentrate would you add to a 50 gallon tank to achieve a 1 percent active ingredient mixture?

To determine how many gallons of a 25 percent emulsifiable concentrate (EC) are required to achieve a 1 percent active ingredient (AI) mixture in a 50-gallon tank, you can use a dilution calculation.

First, calculate the total amount of active ingredient required for the desired concentration in the tank. To achieve a 1 percent concentration in a 50-gallon tank, you will need:

[

50 \text{ gallons} \times 0.01 = 0.5 \text{ gallons of active ingredient}

]

Next, since the emulsifiable concentrate is 25 percent active ingredient, you'll be using this to figure out how much concentrate is needed to obtain the 0.5 gallons of active ingredient. The formula for the volume of concentrate required is:

[

\text{Volume of EC needed} = \frac{\text{Gallons of AI needed}}{\text{Concentration of EC}}

]

Substituting the known values:

[

\text{Volume of EC needed} = \frac{0.5 \text{ gallons}}{0.25} = 2 \text{ gallons of 25 percent EC}

]

Therefore, you need a total of 2 gallons