4. Mercury is the only metal which is a liquid at room temperature. The density of mercury is 13.6 g/cm3. What is the mass, in pounds, of 1.00 quart of mercury? [1 liter = 1.057 quart; 1 pound = 453.6 grams]
First, we need to convert 1.00 quart to liters. 1 quart is equal to 0.946 liters (1 quart ≈ 0.946 liters).
Next, we need to convert liters to cubic centimeters. Since 1 liter is equal to 1000 cubic centimeters, 0.946 liters is equal to 946 cubic centimeters.
Now, we can calculate the mass of 946 cubic centimeters of mercury. The density of mercury is given as 13.6 g/cm^3, so the mass of 946 cubic centimeters of mercury is 946 cm^3 * 13.6 g/cm^3 = 12889.6 grams.
Finally, we can convert grams to pounds. Since 1 pound is equal to 453.6 grams, the mass of 1.00 quart of mercury is 12889.6 grams / 453.6 grams/pound ≈ 28.4 pounds.
Therefore, the mass of 1.00 quart of mercury is approximately 28.4 pounds.