a)
Interpretation:
Concept introduction: Conversion factor is ratio that is widely used to describe relation between two different units. In order to convert one unit into another, original unit is multiplied with proper conversion factor to yield new unit. This is done as mentioned below.
b)
Interpretation: Speed of light in vacuum in
Concept introduction: Conversion factor is ratio that is widely used to describe relation between two different units. In order to convert one unit into another, original unit is multiplied with proper conversion factor to yield new unit. This is done as mentioned below.
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Principles of General Chemistry
- Light travels in a vacuum at a speed of 3.00 × 108 m s-1 .(a) Convert this speed to miles per second.(b) Express this speed in furlongs per fortnight, a littleused unit of speed. (A furlong, a distance used in horse racing, is 660 ft; a fortnight is exactly 2 weeks.)arrow_forwardExpress the following numbers as decimals:(a) 1.52 × 10−2 , (b) 7.78 × 10−8 , (c) 1 × 10−6, (d) 1.6001 × 103.arrow_forward(1) A rectangular block of wood has the following dimensions: 10.0 cm x 5.00 cm x 4.00 cm. The block weight 100 g. What is the density of the block of wood? (2) What is the mass of a 400-mL sample of ethyl alcohol if its density is 0.8 g/mL?arrow_forward
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- An individual weighs 81.4 kg and is 1.78 m tall. (a) What is the person's equivalent measurement in pounds? (b) What is the person's equivalent measurement in feet?arrow_forwardThe volume of water in large scale reservoirs is often measured in units of an acre-foot, which is the amount of water covering one acre of surface to a depth of one foot. An acre-foot is equivalent to 43,560 ft³. A particular water tower in town was constructed to hold 2.55 acre-feet of water. What is the volume of water in liters that the water tower will hold? ( 1 US liquid gallon = 231 cubic inches, 3.785 liters = 1 US liquid gallon)arrow_forwardPerform the following arithmetic operations and report the result to the proper number of significant figures: (a) 317.5 mL + 0.675 mL,(b) 47.80 L − 2.075 L, (c) 13.5 g ÷ 45.18 L, (d) 6.25 cm × 1.175 cm, (e) 5.46 × 102 g + 4.991 × 103g.arrow_forward
- Convert the following temperatures to degrees Celsiusor Fahrenheit: (a) 95°F, the temperature on a hotsummer day; (b) 12°F, the temperature on a cold winterday; (c) a 102°F fever; (d) a furnace operating at1852°F; (e) −273.15°C (theoretically the lowestattainable temperature).arrow_forward(a) The density of iron is 7.874g/cm^(3). Create two conversion factors from the density; (b) What is the volume of 38g of iron?arrow_forwardA student gently drops an object weighing 16.5 g into an open vessel that is full of ethanol, so that a volume of ethanol spills out equal to the volume of the object. The experimenter now finds that the vessel and its contents weigh 10.5 g more than the vessel full of ethanol only. The density of ethanol is 0.789 g / cm^3. What is the density of the object?arrow_forward
- Chemistry & Chemical ReactivityChemistryISBN:9781337399074Author:John C. Kotz, Paul M. Treichel, John Townsend, David TreichelPublisher:Cengage Learning