A backpacker carries 2.5 L of white gas as fuel for her stove. How many pounds does the fuel add to her load? Assume the density of white gas to be 0.79 g/cm^3.

2.5 L x (1,000 cc/L) x (0.79 g/cc) = ?? grams.

Then ?? grams x (1 lb/453.6 g) = xx lbs.

895860

42.3

3.3

To calculate the weight of the white gas in pounds, we need to convert the volume from liters to cubic centimeters (cm^3) and then calculate the weight using the density.

1. Convert 2.5 L to cm^3:
Since 1 L is equal to 1000 cm^3, multiply 2.5 L by 1000 to get the volume in cm^3:
2.5 L * 1000 cm^3/L = 2500 cm^3

2. Calculate the weight using the density:
Density = Mass / Volume
Rearranging the formula to calculate the mass:
Mass = Density * Volume

Given that the density of white gas is 0.79 g/cm^3 and the volume is 2500 cm^3:
Mass = 0.79 g/cm^3 * 2500 cm^3

3. Convert grams to pounds:
1 pound is equal to 453.592 grams. Divide the mass by 453.592 to get the weight in pounds:
Mass in pounds = (0.79 g/cm^3 * 2500 cm^3) / 453.592 g/lb

Therefore, to find the weight of the fuel in pounds, divide the result of step 2 by 453.592 g/lb:

Weight = (0.79 * 2500) / 453.592 pounds

Calculate the expression to find the weight.