TEST BANK FOR QUANTITATIVE CHEMICAL ANALYSIS 10TH EDITION

TEST BANK FOR QUANTITATIVE CHEMICAL ANALYSIS 10TH EDITION 1. Which constant is NOT used to define the fundamental SI units? a. Avogadro’s number b. speed of light in vacuum c. elementary charge d. Planck’s constant e. π 2. A satellite in low Earth orbit with a circular orbit has an orbital speed of 7.3 km/s relative to the Earth’s surface. Calculate the satellite’s speed in miles per hour. (1 mi = 1.609 km) a. 1.6 × 104 mi/h b. 1.3 × 10−3 mi/h c. 4.2 × 104 mi/h d. 3.3 × 10−3 mi/h e. 3.1 × 102 mi/h 3. The calorie content of a candy bar is 230. Calories per serving (1 bar). Calculate the specific energy (kJ/g) of the candy bar. (1 candy bar = 52.7 g, 1 Calorie = 1 000 calories, 1 calorie = 4.184 J) a. 2.90 × 103 kJ/g b. 18.3 kJ/g c. 1.83 × 10−2 kJ/g d. 5.07 × 104 kJ/g e. 9.59 × 10−1 kJ/g