Chapter 08

View Policies Current Attempt in Progress A bubble of air escaping from a diver's mask rises from a depth of 116 ft to the surface where the pressure is 1.00 atm. Initially, the bubble has a volume of 10.0 mL. Assuming none of the air dissolves in the water. how many times larger is the bubble just as it reaches the surface? Use this data: 1. The density of seawater is approximately 1.025 g mL 2. The density of mercury is 13.6 g mL times larger Use your answer to explain why scuba divers constantly exhale as they slowly rise from a deep dive. Since the pressure v by a factor of approximatelyi the volume must v by a factor of approximately i Divers exhale to the amount of gas in their lungs, so it does not V to a volume than the diver's lungs.

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7-Which of Newton's Three Laws does the following statement satisfy? For every action there is an equal and opposite reaction. a) Newton's Second Law b) Newton's Third Law c) Newton's First Law d) All of the above

naining Time: 43 minutes, 12 seconds. estion Completion Status: QUESTION 20 In the experiment "Molar mass of volatile liquid", the pressure of the gas inside a flask was the same as atmosphere, and the temperature was identical to the boiling water temperature of water bath. How did you measure the volume of the gas inside the flask? - O Read the volume written on the flask. Fill the flask up to the brim with water and then transfer the water to a graduated cylinder. Measure the volume of the liquid added to the flask before heating the sample. Measure the volume of the liquid that condenses in the flask after cooling the sample. QUESTION 21 Name the laboratory equipment. Save All Click Save and Submit to.save and submit. Click Save All Answrers to save all anstcers

A reaction at 32.0 degrees Celsius evolves 882. mmol of carbon dioxide gas. Calculate the volume of carbon dioxide gas that is collected . You can assume the pressure in the room is exactly 1 atm.

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Subject : Chemistry and Environmental Pollution Explain the role of atmospheric water in controlling the Earth's temperature Discuss the influence of pollution on the atmospheric water.

For the next experiment, several students placed a marshmallow Peep chick into the microwave. What is the BEST prediction of what will happen to the Peep chick once the microwave is turned on for 15 seconds? There is a direct relationship between pressure and A) volume so the chick will shrink. Whenever there is an increase in temperature there is an increase in volume so the chick expands. The molecules inside the marshmallow chick gas C) heat up vibrate, increase the pressure outward and the chick expands. Increased pressure due to increased temperature results in a decrease in volume so the marshmallow D) chick will begin to shrink.

Dalton v Accessibility Mode Imn 7. Two tanks are connected by a closed valve. Each tank is filled with gas, and both tanks are held at the same temperature. We open the valve and allow the gases to mix. Tank A contains 5.00 L of oxygen at 24 atm, and tank B contains 3L of nitrogen at 32.0 atm. a. After the gases mix, what is the partial pressure of each gas? b. What is the total pressure? 8. A gaseous mixture contains 3.23 g of chloroform, CHCl3, and 1.22 g of methane, CH4. Assuming that both compounds remain as gases, what pressure is exerted by the mixture inside a 50.0 ml metal container at 275C? What is each of the partial pressures in atm?

Review Topics] [References] 1 pts 2req Use the References to access important values if needed for this qúestion. Battery A sample of argon gas at a pressure of 0.976 atm and a temperature of 27.2 °C, occupies a volume of 747 mL. If the gas is compressed at constant temperature until 1 pts 2req its pressure is 1.33 atm, the volume of the gas sample will be mL. Battery Leve 1 pts 2req Submit Answer Retry Entire Group 9 more group attempts remaining 12 AM Screen On Us 12 AM Apr 22 Ana u cn +1 (404) 50 I don't ha T refuse to Thave been +1 (770) 899-

How much will atmospheric carbon change in one year?10year and 100 years?

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A waste heat exchanger is used to absorb the energy from the complete combustion of hydrogen sulfide gas. What volume of water undergoing a temperature change of 52 degrees Celsius is required to absorb all of the energy from the burning of 12 kg of hydrogen sulfide?* 0.85 mL O 0.84 L O 840 g O 0.85 g

Here is a graph of the pressure of ozone (03) in a reaction vessel during a certain chemical reaction. Use this graph to answer the questions in the table below. 3.00 - 2.50 olo 2.113 2.00- Ar atm 1.50- 1.00 - 0.50 10 15 20 25 30 seconds created Is O, being created or destroyed by the chemical destroyed 3. reaction? neither created nor destroyed If O, is being created or destroyed, what is the rate at 3. which is being created or destroyed 10 seconds after the reaction starts? Round your answer to 2 significant digits. Also be sure your answer has the correct unit symbol. If O, is being created or destroyed, what is the average rate at which it is heina created or destroved durina the.

Five samples of neon gas are described in the table below. Rank the samples in order of increasing average kinetic energy of the atoms in them. That is, select "1" next to the sample in which the neon atoms have the lowest average kinetic energy. Select "2" next to the sample in which the neon atoms have the next lowest average kinetic energy, and so on. sample average kinetic energy of atoms in sample amount pressure temperature 2.3 mol 1.1 atm - 35. °C (Choose one) 1.2 mol 2.5 atm - 15. °C (Choose one) ▼ - 12. °C |(Choose one) 2.4 mol 2.8 atm 1.8 mol 1.4 atm - 10. °C |(Choose one) ▼ 2.9 mol 2.9 atm - 25. °C (Choose one) v

Air Pollution explain why certain areas have more air pollution than others.

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Review I Constants I Periodic Table The U.S. Environmental Protection Agency (U.S. EPA) monitors air quality in the United States. Lead is among the pollutants regularly monitored and regulated. Lead is released into the atmosphere primarily by the processing of metals ores containing lead and by lead-based battery manufacturing. The effects of too much exposure to lead include neurological damage and cardiovascular disease. Because of the Clean Air Act and its amendments, the amounts of lead in air have been decreasing for many years. The chart below shows the lead concentration in air in the United States from 2000 to 2014 (Figure 1) Previous Answers Submit Correct A decrease in -83% is a substantial improvement in air quality from 2000 to 2014 Part D How many lead atoms were in one cubic centimeter of air in 2006? Express the number of lead atoms numerically. View Available Hint(s) Figure 1 of 1 Lead Concentration in Air in U.S Vη ΑΣφ ? 3.5 108 0.35 Pb atoms 0.3 0.25 Previous…

0.530 mol sample of carbon dioxide gas at a temperature of 13.0 °C is found to occupy a volume of 26.4 liters. The pressure of this gas sample is I mm Hg. Submit Answer MAY 1 *** [Review Topics] [References] Use the References to access important values if needed for this question. Retry Entire Group tv C C 9 more group attempts remaining St17 A P Previous LE Next Save and Exit

Part 5. Dalton's Law of Partial Pressures A sample of Argon gas is placed in a 5.0L container at 298K. The measured pressure is 1.0 atm. If Xenon gas is added to the same container containing the Argon, and the volume and temperature due not change, the pressure increases to 1.5 atm. From this data calculate the moles of argon and xenon present in the flask and the mole fraction of each gas.

CHAPTER 4 GASES Multiple-Choice Questions 1. Determine the density of NO gas at 101 kPa and 35 °C ing dm³. A 0.012 BO.S2 C1 82 D 16 A gas sample contains 42 g nitrogen and 44 g carbon dioxide at a total pressure of 150 kPa. What is the partial pressure of carbon dioxide? A 60 kPa B 76 7 kPa C 90 kPa D 112.5 kPa 2. A sample of gas has a rolume of 430 cm3 at 10 °C and 100 kPa What is the volume of the gas at 30 °C and 110 kPa? A 44 cm³ B 365 cm C 419 cm' D1173 cm Page 1 I 2 Q +

What is the composition of air? (chemical substances present in the air, the molecular structure of these substances).

Zinc metal is added to hydrochloric acid to generate hydrogen gas and is collected over a liquid whose vapor pressure is the same as pure water at 20.0°C (18 torr). The volume of the mixture is 1.7 L and its total pressure is 0.810 atm.   Reference: Ref 5-7 Determine the partial pressure of the hydrogen gas in this mixture. Select one: a. 562 torr b. 580 torr c. 598 torr d. 616 torr e. 634 torr

It takes 110 seconds for 50 mL of oxygen to pass through a small hole. 1. How long does will it take the same volume of ethyl ether vapor to pass through the same hole? 2. What volume of chlorine will pass through the hole in 5 minutes? a) 8 sec, 100.5 mL b) 5 sec, 92.6 mL c) 167 sec, 91.6 mL d) 170 sec, 70.6 mL e) None of the above

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