CHEM 090 Lecture Notes - Lecture 3: Intensive And Extensive Properties, Lead, English Units
7 Dec 2016
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All measurements are defined by a quantity (number) and a unit. Conversions within english system or within metric system are exact. 1 yd = 36 in to 0. 9144 m. 1 mi = 5280 ft to 1. 609 km: given km, need miles, 1 mile / 1. 609 km, 54 km x 1 mile / 1. 609 km = 34 miles. Ex: when constructing a building 25. 8 meters in length, you will need to purchase a steel beam of that length. Plan: 25. 8 m cm in cost. 25. 8m x 10 2 cm/1m x 1in/2. 54cm x /1in = $ 125 fl-oz x 1qt/32fl-oz x 0. 9464l/1qt = 3. 7. 356 ml x 1 fl-oz/29. 57 ml = 12. 04 fl-oz. 6. 7lbs x 453. 6g/1lb x 1kg/10 3 g = 3. 0 kg. 75 kg x 1000 g / 1 kg x 1 lbs / 453. 6 g = lb. Is an intensive property, independent of mass present.
