week02 - Lecture 3 HW 1.79 A piece of plastic sinks in oil...

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1 Lecture 3 HW 1.79 A piece of plastic sinks in oil but floats in water. Place these three substances in order from least to greatest density. HW 1.75 If the density of a sugar solution is 1.30 g/mL, what volume of this solution has a mass of 50.0 g? Temperature: a measure of how hot or cold something is relative to some standard – measured with a thermometer – at which a phase change occurs is independent of sample size – units are degrees Celsius ( ° C), degrees Kelvin (K), and Fahrenheit ( o F) T K = T ° C + 273.15 T ° F = 1.8(T ° C ) + 32 (memorize these relationships) Figure 1.22
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2 Example 1.9c Human body temperature is normally 98.6 o F. What is this temperature on the Celsius and Kelvin scales? Physical Changes •A ph y s i c a l ch
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This note was uploaded on 02/14/2011 for the course CHEM 111 taught by Professor Cao during the Fall '07 term at Purdue.

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week02 - Lecture 3 HW 1.79 A piece of plastic sinks in oil...

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