Web Quiz 1

Web Quiz 1 - Web Quiz You can login to this page multiple...

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Web Quiz You can login to this page multiple times but you cannot take the quiz more than once. . Submit your answer for grading by Clicking on the "Grade Answers" button at the bottom of the page only when you are sure of your answers. Question # 1 A method of separation that employs a system with two phases of matter, a mobile phase and a stationary phase, is called A. filtration. B. chromatography. C. distillation. D. vaporization. E. homogenization. Question # 2 In 1928, 1.0 g of a new element was isolated from 660 kg of the ore molybdenite. The percent by mass of this element in the ore was: A. 1.50% B. 6.60% C. 1.00% D. 1.5 x 10 -4 % E. 3.5 x 10 -3 % Question # 3 Convert 974036 mm to km. A. 9744036 km B. 974.036 km C. 974036000 km D. 0.000974036 km E. 0.974036 km
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Question # 4 The density of a liquid is determined by successively weighing 25, 50, 75, 100, and 125 mL of the liquid in a 250-mL beaker. If volume of liquid is plotted along the horizontal axis, and total mass of beaker plus liquid is plotted on the vertical
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This note was uploaded on 10/25/2010 for the course CHEM 105ALg taught by Professor Bau during the Spring '07 term at USC.

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Web Quiz 1 - Web Quiz You can login to this page multiple...

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