College Physics
11th Edition
ISBN: 9781305952300
Author: Raymond A. Serway, Chris Vuille
Publisher: Cengage Learning
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Chapter 10, Problem 30P
(a)
To determine
The number of moles in the sample.
(b)
To determine
The number of formaldehyde molecules in the sample.
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A sample of pure gold has a mass of 15.8 g. Calculate the number of moles in the sample and gold atoms in the sample.
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moles in the sample
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A sample of pure copper has a mass of 12.5 g. Calculate the number of (a) moles in the sample and (b) copper atoms in the sample.
Two containers of equal volume each hold samples of the same ideal gas. Container A has 3 times as many molecules as container B. If the gas pressure is the same in the two containers, find the ratio of the the absolute temperatures TA and TB ( i.e TA / TB ) . Calculate to 2 decimals.
Chapter 10 Solutions
College Physics
Ch. 10.1 - Prob. 10.1QQCh. 10.3 - If you quickly plunge a room-temperature mercury...Ch. 10.3 - If you are asked to make a very sensitive glass...Ch. 10.3 - Two spheres are made of the same metal and have...Ch. 10.3 - Prob. 10.5QQCh. 10.5 - Prob. 10.6QQCh. 10 - (a) Why does an ordinary glass dish usually break...Ch. 10 - A sealed container contains a fixed volume of a...Ch. 10 - Some thermometers are made of a mercury column in...Ch. 10 - Prob. 4CQ
Ch. 10 - Objects deep beneath the surface of the ocean are...Ch. 10 - A container filled with an ideal gas is connected...Ch. 10 - Why do vapor bubbles in a pot of boiling water get...Ch. 10 - Markings to indicate length are placed on a steel...Ch. 10 - Figure CQ10.9 shows Maxwell speed distributions...Ch. 10 - The air we breathe is largely composed of nitrogen...Ch. 10 - Metal lids on glass jars can often be loosened by...Ch. 10 - Suppose the volume of an ideal gas is doubled...Ch. 10 - An automobile radiator is filled to the brim with...Ch. 10 - Figure CQ10.14 shows a metal washer being heated...Ch. 10 - Prob. 1PCh. 10 - The pressure in a constant-volume gas thermometer...Ch. 10 - Prob. 3PCh. 10 - Death Valley holds the record for the highest...Ch. 10 - Prob. 5PCh. 10 - Prob. 6PCh. 10 - A persons body temperature is 101.6F, indicating a...Ch. 10 - The temperature difference between the inside and...Ch. 10 - Prob. 9PCh. 10 - Prob. 10PCh. 10 - Prob. 11PCh. 10 - A grandfather clock is controlled by a swinging...Ch. 10 - A pair of eyeglass frames are made of epoxy...Ch. 10 - A spherical steel ball bearing has a diameter of...Ch. 10 - A brass ring of diameter 10.00 cm at 20.0C is...Ch. 10 - A wire is 25.0 m long at 2.00C and is 1.19 cm...Ch. 10 - The density of lead is 1.13 104 kg/m3 at 20.0C....Ch. 10 - The Golden Gate Bridge in San Francisco has a main...Ch. 10 - An underground gasoline tank can hold 1.00 103...Ch. 10 - Show that the coefficient of volume expansion, ,...Ch. 10 - A hollow aluminum cylinder 20.0 cm deep has an...Ch. 10 - A construction worker uses a steel tape to measure...Ch. 10 - The hand in Figure P10.23 is stainless steel...Ch. 10 - The Trans-Alaskan pipeline is 1 300 km long,...Ch. 10 - The average coefficient of volume expansion for...Ch. 10 - The density or gasoline is 7.30 102 kg/m3 at 0C....Ch. 10 - Figure P10.27 shows a circular steel casting with...Ch. 10 - The concrete sections of a certain superhighway...Ch. 10 - A sample of pure copper has a mass of 12.5 g....Ch. 10 - Prob. 30PCh. 10 - One mole of oxygen gas is at a pressure of 6.00...Ch. 10 - A container holds 0.500 m3 of oxygen at an...Ch. 10 - (a) An ideal gas occupies a volume of 1.0 cm3 at...Ch. 10 - An automobile tire is inflated with air originally...Ch. 10 - Prob. 35PCh. 10 - Gas is contained in an 8.00-L vessel at a...Ch. 10 - Prob. 37PCh. 10 - The density of helium gas at 0C is 0 = 0.179...Ch. 10 - An air bubble has a volume of 1.50 cm3 when it is...Ch. 10 - During inhalation, a persons diaphragm and...Ch. 10 - What is the average kinetic energy of a molecule...Ch. 10 - Prob. 42PCh. 10 - Three moles of an argon gas are at a temperature...Ch. 10 - A sealed cubical container 20.0 cm on a side...Ch. 10 - Prob. 45PCh. 10 - Prob. 46PCh. 10 - Prob. 47PCh. 10 - A 7.00-L vessel contains 3.50 moles of ideal gas...Ch. 10 - Prob. 49PCh. 10 - Prob. 50PCh. 10 - Inside the wall of a house, an L-shaped section of...Ch. 10 - The active element of a certain laser is made of a...Ch. 10 - A popular brand of cola contains 6.50 g of carbon...Ch. 10 - Prob. 54APCh. 10 - Prob. 55APCh. 10 - A 1.5-m-long glass tube that is closed at one end...Ch. 10 - Prob. 57APCh. 10 - A vertical cylinder of cross-sectional area A is...Ch. 10 - Prob. 59APCh. 10 - A 20.0-L tank of carbon dioxide gas (CO2) is at a...Ch. 10 - A liquid with a coefficient of volume expansion of...Ch. 10 - Before beginning a long trip on a hot day, a...Ch. 10 - Two concrete spans of a 250-m-long bridge are...Ch. 10 - An expandable cylinder has its top connected to a...Ch. 10 - A bimetallic strip of length L is made of two...Ch. 10 - A 250-m-long bridge is improperly designed so that...Ch. 10 - Prob. 67APCh. 10 - Two small containers, each with a volume of 1.00 ...
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- Two containers hold ideal gases at the same temperature.Container A has twice the volume and half the number of molecules as container B. What is the ratio PA>PB, where PA is the pressure in container A and PB is the pressure in container B?arrow_forwardPlease help mearrow_forwardPlease asaparrow_forward
- A certain element has a mass per mole of 9.0122 g/mol. What is the mass of a single atom in (a) atomic mass units and (b) kilograms? (c) How many moles of atoms are in a 277-g sample? (a) matom (b) matom= (c) n = i iarrow_forwardIn 12.0 g of carbon, there are NA = 6.02 x 10^23 carbon atoms (Avogadro’s number). If you could count 1 atom per second, how long would it take to count the atoms in 1.00 g of carbon? Express your answer in years.arrow_forwardThe average distance that a molecule travels before colliding with another molecule is called the mean free path and is given by: where d is the diameter of the molecule and N, is the number of molecules per unit volume. The number of collisions that a molecule makes with other molecules per unit time, or collision frequency f, is given by f = avg (a) Determine the mean free path (in m) of hydrogen molecules in a tank that has a volume of 12.5 L, a gauge pressure of 110 atm, and a temperature of 20.0°C. The average diameter of hydrogen molecules is 0.740 x 10¬10 m. 1.49E-8 m (b) Determine the average time interval (in s) between molecular collisions for a molecule of hydrogen gas. 0.52 How is the time of interest related to the collision frequency? Check the text for an expression for the average speed. Remember to express the molecular mass in terms of kilograms and that the temperature must be in kelvins. sarrow_forward
- One mole of an ideal gas at standard temperature and pressure occupies 22.4 L (molar volume). What is the ratio of molar volume to the atomic volume of a mole of hydrogen ? (Take the size of hydrogen molecule to be about 1 Å). Why is this ratio so large ?arrow_forwardA container filled with an ideal gas is connected to a reservoir of the same gas so that the number of moles in the container can change. If the pressure and volume of the container are each doubled while the temperature is held constant, what is the ratio of the final to the initial number of moles in the container?arrow_forwardAvagadro's number (6.023 × 1023) is a pure (unitless) number which serves as a good standard for measuring the number of molecules in ideal gases at STP. A)What is the volume, in cubic kilometers, of Avogadro’s number of sand grains, if each grain is a cube with an edge length of 1.3 mm and the cubes are densely packed (with no air between them). B) How long, in kilometers, would a beach have to be for this sand to cover it to a depth of 10.0 m? Assume a beach is 100.0 m wide, and you can neglect the air spaces between the grains.arrow_forward
- Q. 18 : The speed of molecules are given by 2 m/s, 3 m/s, 4 m/s, 5 m/s, and 6 m/s. The mean square speed is (a) (b) 25 m?/s² 20 m²/s? (c) 36 m²/s? (d) 18 m²/s?arrow_forwardGold has a molar mass of 197 g/mol. (a) How many moles of gold are in a 1.09 g sample of pure gold? (b) How many atoms are in the sample? (a) Number Units (b) Number Unitsarrow_forwardA closed 1 L water bottle contains air at standard temperature and pressure. The bottle is left in a room for a few hours, and the sun heats up the bottle to 30oC. What is the new pressure inside the bottle? Give an answer in atm with 3 digits of precision behind the decimal.arrow_forward
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