Question

MULTIPLE CHOICE QUESTION: Which of the following has the SMALLEST mass?

PLEASE SHOW WORK!!! THANKS SO MUCH!

HINTS: Useful conversions are given below.

1 gallon = 3.7854 L

Density of gasoline = 0.80 g/mL given that its density is 13.5 g/cm³ at 25ºC and 1.0 atm.

Density of water = 1.00 g/mL given that its density is 13.5 g/cm³ at 25ºC and 1.0 atm.

1 kg = 2.2046 Lb

A. 5.0 Lb potatoes
B. 1.0 gallon of water
C. 1.0 gallon of gasoline
D. 3.0 L can of gasoline

Answer 1

Ans

This may help

1) 1.0 gallon of water = 3.7854 L = 37854 mL

density = mass / volume     ------------------------------(1)

so, from eq (1)

mass of 37854 mL water = 37854 x 1

= 37854 g.

(2) 2.2046 Lb = 1Kg = 1000 g

then 5.0 Lb potatoes = (5.0 x 1000) / 2.2046

5.0 Lb potatoes = 2267.99 g

(3) 1 gallon gasoline = 3.7854 L = 37854 mL

from eq (1), mass of 37854 mL gasoline = 0.8 x 37854

= 30283.2 g

(4) 3L of gasoline = 3000 mL

mass of 3000 mL gasoline = 0.8 x 3000

= 2400 g.

Correct option:

1.0 gallon of water.