4. A sample of a zinc alloy is found to be 95.7% zinc by mass. The alloy has a density of 8.72 g/cm. How many ounces of zinc are present in a 2.4 in sample of the alloy? 5. How many mL of a salt water solution (35.0% salt by mass) is needed to obtain 57.6 grams of salt upon evaporation of the water? The density of the solution is 1.045 g/mL. 6. Find the radius, in ft, of a spherical object with a volume of 0.0058 m. V = (4/3)r 7. Find the density (in g/cm) of a metal cylinder with a mass of 1.83 x 102 pounds, a length of 0.764 in, and a radius of 0.217 in. English-to-English: Mass: - 1 lb = 16 mass oz (mass oz = m. oz) - 1 ton = 2000 lbs Volume Length 1 cup = 8 fluid oz (fluid oz = fl oz) 1 pint = 2 cups 1 quart = 2 pints 1 gal = 4 quarts 1 foot = 12 inches 1 yard = 3 feet 1 mile = 5280 feet Metric-to-Metric: Mass 106 g = 1 Mg 103 g = 1 kg 1,000,000 g = 1 Mg 1000 g = 1 kg 1 g = 10 dg 1 g = 100 cg 1 g = 1000 mg 1 g = 10 dg 1 g = 10 cg Volume 106 L = 1 ML 103 L = 1 kL 1 L = 10 dL 1L = 10 cL Distance 106 m = 1 Mm 103 m = 1 km 1 m = 10 dm 1 m = 10 cm 1 m = 103 mm 1 m = 10 m 1 g = 103 mg 1 L = 103 mL 1 g = 1,000,000 g 1 g = 10 g 1 L = 106 L 1 g = 1,000,000,000 ng 1 g = 10 ng 1 L = 10 nL 1 g = 1,000,000,000,000 pg 1 g = 1012 pg 1 L = 1012 pl 1 m = 10 nm 1 m = 1012 pm English to Metric: English-to-Metric conversions: - Mass: 1 lb = 453.6 g - Volume: 1.057 qt = 1L Length: 1 in 2.54 cm ("exactly") 1 mile 1.609 km Cubic volume to "regular" volume . 1 cm = 1 mL