What is the weight of 100 gallons of water?

To determine the weight of 100 gallons of water, it’s important to know that one gallon of water weighs approximately 8.34 pounds. Therefore, to find the weight of 100 gallons, you would multiply the weight of one gallon by 100:

100 gallons x 8.34 lbs/gallon = 834 lbs.

This calculation shows that the total weight of 100 gallons of water is approximately 834 pounds. Thus, the correct answer is 830 lbs, which accounts for a slight rounding difference in the estimation of the weight per gallon.