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Get Full Access to Chemistry: The Central Science - 12 Edition - Chapter 10 - Problem 19e
Get Full Access to Chemistry: The Central Science - 12 Edition - Chapter 10 - Problem 19e

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# Each of the following statements concerns a mercury

ISBN: 9780321696724 27

## Solution for problem 19E Chapter 10

Chemistry: The Central Science | 12th Edition

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Problem 19E

Each of the following statements concerns a mercury barometer such as that shown in Figure 10.2. Identify any incorrect statements and correct them. (a) The tube must be 1 cm2 in cross-sectional area. (b) At equilibrium the force of gravity per unit area acting on the mercury column equals the force of gravity per unit area acting on the atmosphere. (c) The column of mercury is held up by the vacuum at the top of the column. (d) If you took the mercury barometer with you on a trip from the beach to high mountains, the height of the mercury column would increase with elevation.

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Chem 1010 9/6 – 9/8/2017 Class Notes Area  The area of a plane rectangle = length x width  Area of plane triangle = height x base / 2  Area enclosed by a plane circle = pi x radius 2(squared)  Three Dimensional objects have a surface area Volume, V In three dimensions we are more interests in volume. Volume is a measure of how much stuff you’ve got, a quantity of matter Liter is commonly used for fluids Liter was originally a base unit in the metric system Density Density is defined as mass / volume; d = m / V Water: 1.00 g per mL (1.00g/mL) –NEED TO KNOW- Temperature The volume increases as the temperature increases Celsius 100 C degrees=180 F degrees, 5 C=9 F degrees To Convert to F to C: calculate how many F degrees away from 32F Add or subtract 32 Compounds and Elements -original substance is a compound -if you can’t decompose into 2 by chemical process into 2 or more substances Quicklime from Limestone Lime stone: common gray sedimentary rock -very common -formed from marine organisms Quicklime: is made from roasting limestone -used for making mortar 280 Mt(megaton)(1 t = 100kg Limestone decomposes to quicklime Carbon Dioxide Joseph Black Antoine Lavoisier Combination reaction: Carbon + oxygen  carbon dioxide (-)Burning (reaction with oxygen) = combustion Law of conversation of mass Based on observation, have to of done experiments which then leads us to a conclusion Composition of Compounds Zinc + Oxygen = Zinc Oxide Zinc increases - oxygen increases- quantity zinc oxide increases Law of Multiple Prop

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