Final answer:
The density of motor oil is approximately 0.861 g/mL.
Step-by-step explanation:
To find the density of motor oil in g/mL, we need to use the formula:
Density = Mass / Volume
First, we need to convert the given volume of 1.25 quarts to milliliters. Since 1 quart is equal to 946.35 milliliters, we get:
Volume = 1.25 qt * 946.35 mL/qt = 1182.94 mL
Next, we need to convert the given mass of 2.25 pounds to grams. Since 1 pound is equal to 453.59 grams, we get:
Mass = 2.25 lb * 453.59 g/lb = 1019.86 g
Now we can substitute the values into the density formula:
Density = 1019.86 g / 1182.94 mL = 0.861 g/mL
Therefore, the density of motor oil is approximately 0.861 g/mL, which is not among the given answer choices.