Concept explainers
Answer the following questions:
(a) An old rule of thumb in cooking says: "A pines a pound the world around." What is the density in g/mL of a substance for which 1 pt = 1 lb exactly?
(b) There are exactly 640 acres in 1 square mile. How many square meters are in 1 acre?
(c) A certain type of wood has a density of 0.40 g/cm3. What is the mass of 1.0 cord of this wood in kg, where 1 cord is 128 cubic feet of wood?
(d) A particular sample of crude oil has a density of 0.85 g/mL. What is the mass of 1.00 barrel of this crude oil in kg, where a barrel of oil is exactly 42 gallons?
(e) A gallon of ice cream contains exactly 32 servings, and each serving has 165 Calories, of which 30.0% are derived from fat. How many Calories derived from fat would you consume if you ate one half-gallon of ice cream?
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