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Apply the unit analysis method of problem solving to each of the following (setup statement 1 pt, unit analysis setup 3 pts, answer 1 pt with its proper unit) (If greater than three significant figures round off to three significant figures):
(1) How many karats is a diamond weighing
234.2 mg? (One karat = 0.200 g)
____???____ karat = 234.2 mg
Given Unit Factors

Unit Factors Not Given

(2) Insurance statistics state that a person loses 8 minutes of average life for each cigarette smoked. If there are 20 cigarettes in a pack and the average cost of cigarette is $4.50 per pack over the next 15 years, how many years of average life would a person lose for smoking 1.5 packs a day for 15 years?
____???____ yr_{lifelost} = 15 yr_{smoking}
Given Unit Factors

Unit Factors Not Given

1. A quartz rock was cut into a rectangular solid paperweight. IF the paperweight has a mass of 165 g and measures 5.00 cm by 5.00 cm by 25.0 mm, what is its volume in cubic centimeters?
____???____ cm^{3}
= 5.00 cm X 5.00 cm X 25.0 mm
2. Calculate the density in g/mL for 10.0 grams of ethyl ether having a volume 14.0 mL.
Density = ____???____ g/m = 10.0 g/14.0 mL