What is the recommended drip rate in mL per minute when applying 3 quarts of herbicide per hour?

Study for the Florida Aquatic Weed Control Pesticide Exam. Use flashcards and multiple-choice questions, each with hints and explanations. Prepare effectively!

To determine the recommended drip rate in mL per minute for applying 3 quarts of herbicide per hour, it is important to first convert quarts to mL and then compute the per-minute application rate.

One quart is equivalent to approximately 946.35 mL. Therefore, 3 quarts equates to:

3 quarts × 946.35 mL/quart = 2,839.05 mL

Next, since this amount of herbicide is to be applied in one hour, we convert the application time from hours to minutes. There are 60 minutes in an hour, so we divide the total volume in mL by the number of minutes:

2,839.05 mL ÷ 60 minutes = approximately 47.32 mL per minute

Rounding this to a practical value leads us to 47.3 mL per minute. Thus, choosing 47.3 mL is backed by the fact that it accurately reflects the calculated drip rate based on the given application rate of 3 quarts per hour. By focusing on understanding the calculations and conversions involved, it becomes clearer why this choice is the correct answer.

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