Gaseous and liquid states Questions and Answers

How many more OF Of neon would be Contained in 4 0L OF neon gas at 2 atm and 7 C

20 g of water specific heat of water is 4 18 J g C has a temperature change from 20 C to 25 C How much heat energy Q was gained 83 J 209 J 418 J 4 18 J

Identify the all relevant intermolecular force s present in the system listed below Mineral Oil mix of CxH2x 2 1 isomers

If 22 5 L of nitrogen at 748 mmHg are compressed to 725 mmHg at constant temp What is the n volume 23 214 L

Convert 9 6 x 10 atm to torr O 9 7 104 torr O 1 26 torr O 67 torr O 1 4 105 torr O 7 3 105 torr

4 Calculate the Normality of a solution that is prepared by dissolving 37 g of Ca OH 2 in 375 mL solution 4pts L 5 How many litters of SO3 gas will be collected from the following reaction of 25 g of S at 35 C and 676 torr pressure 4 pts 2S 30 H 2SO3

Consider a gas at 1 00 atm in a 5 00 L container at 20 C What pressure does the gas exert when transferred to a volume of 3 44 L at 43 C 03 12 atm O 1 35 atm O 0 371 atm O 1 57 atm 0 742 atm

Cher Free Vector images from Pixabay taps Pporabay birthday balkon 25734 It s 32 F 0 C outside under normal atmospheric conditions 1 atm at a stunt performer s birthday party There is a huge blue balloon filled with flammable hydrogen H molar mass 2 02 g m gas that she plans to safely ignite causing a massive explosion Inside the balloon is 265 g of H g What is the volume of the balloon in liters Round to the nearest whole number

2 It was stated in the introduction that problems would occur in gas law calculations when the temperature was 0 F or 0 C Will the same difficulties be faced with the Kelvin scale when a gas is cooled to absolute zero Why or why not

Discuss at least four principal limitations of the Lennard Jones potential considering both the repulsive and attractive components 8 marks

Solve the following problems in the space provided 6 A rigid container of O has a pressure of 388 kPa at a temperature of 713 K What is the pressure at 273 K 7 A flexible gas storage container has a volume of 3 5 x 105 m when the temperature is 27 C and the pressure is 115 kPa What is the new volume of the container if the temperature drops to 10 C and the pressure drops to 99 kPa 8 A mixture of gases at a total pressure of 145 0 kPa contains N CO2 and O The partial pressure of the N is 28 5 kPa and the partial pressure of the CO is 76 0 kPa What is the partial pressure of the O

Use the editor to format your answer Question 7 1 Point You are a nurse and you have several patients that need treatment Thank goodness you were taught how to manipulate gas laws in order to help the patients Help each patient solve the issue they are encountering How many moles of gas are in a helium tank that holds 22 4L kept at room temperature and atmospheric pressure the helium tank contain 0 9167 mol helium gas at room temperature and atmospheric pressure Question 8 1 Point You are a nurse and you have several patients that need treatment Thank goodness you were taught how to manipulate gas laws in order to help the patients Help each patient solve the issue they are encountering Patient B needs nitrous oxide N O before surgery and you have to figure out if there is enough nitrous oxide in the cylinder How many moles of nitrous oxide is in a cylinder of 9 0kg 6kg when empty at standard temperature and pressure

25 C and 100 kPa a gas occubies a volume of 20 L Calculate the new temperature of the gas in a the volume is decreased to 10 L at constant pressure 149K b the pressure is decreased to 50 kPa at constant volume 149K

Enter your answer in the provided box Roasting galena lead II sulfide is an early step in the industrial isolation of lead How many liters of sulfur dioxide measured at STP are produced by the reaction of 9 88 kg of galena with 212 L of oxygen gas at 220 C and 2 00 atm Lead II oxide also forms

3 Charles Law is very useful in predicting the change in the volume of a gas given a change in the temperature and vice versa What is the greatest limitation of Charles Law in every day situations

A reaction at 16 0 C evolves 439 mmol of dinitrogen monoxide gas Calculate the volume of dinitrogen monoxide gas that is collected You can assume the pressure in the room is exactly 1 atm Round your answer to 3 significant digits volume L

9 A sample of neon occupies a volume of 461 mL at STP What will be the volume of the neon when the pressure is reduced to 93 3 kPa

10 352 mL of chlorine under a pressure of 680 mm Hg are placed in a container under a pressure of 1210 mm Hg The temperature remains constant at 296 K What is the volume of the container in liters

Dinitrogen oxide which is used in dentistry is an anesthetic also called laughing gas What is the pressure in atmospheres of 0 373 mole of N 0 at 12 Celsius in a 4 01 liter container Make sure to include the correct unit symbol with the answer choice

chemist determines by measurements that 0 0200 moles of chlorine gas participate in a chemical reaction Calculate the mass of chlorine gas that participates Round your answer to 3 significant digits 0 18 10 C

gas is heated to 180 K at a constant pressure of 1 0 atm If the container expands to hold a volume o 4 8 L what was the volume of the gas at a temperature of 90 K 22 L

7 A gas tank holds 2785 L of propane C3H8 at 830 mm Hg What is the volume of the propane at standard pressure

Chlorine gas Cl is used to purify water How many moles of chlorine gas are in a 8 87 liter tank if the gas has a pressure of 883 millimeters of mercury and a temperature of 22 Celsius Make sure to include the correct unit symbol with the answer choice Non metal Periodic Table O a 0 625 mol O b 0 425 mol O c 0 545 mol O d 0 405 mol O e 0 855 mol

A reaction between liquid reactants takes place at 34 0 C in a sealed evacuated vessel with a measured volume of 25 0 L Measurements show that the reaction produced 23 g of dinitrogen difluoride gas Calculate the pressure of dinitrogen difluoride gas in the reaction vessel after the reaction You may ignore the volume of the liquid reactants Round your answer to 2 significant digits pressure at atm x10 X G C

Calculate to three significant digits the density of chlorine pentafluoride gas at exactly 10 C and exactly 1 atm You can assume chlorine pentafluoride gas behaves as an ideal gas under these conditions 0 01 P

ind the new volume of a gas starting with a volume of 24 6 L at 25 C and 10 0 atm if we change tandard temperature and pressure 273 K and 101 3 kPa 225 L

1 What variables are used in the problem a pressure and volume b all c volume and temperature d temperature and pressure e pressure and moles a e QUESTION 17 What law is being used a Boyles b Charles c Gay Lussac

Temperature and moles are constant 1 What variables are used in the problem a pressure and volume b number and volume b c volume and temperature d temperature and pressure QUESTION 7 What law is being used a Boyles b Charles

What is the chemical process we use to break down glucose to produce energy a Photosynthesis b Carbonization c Cellular Respiration d Oxidation of oxygen

What is the atom described by Ar 4s 3d 0 4p

1 Gases such as the air inside an inflated air bag can be easily compressed because O A gas particles have mass O B C gases have high densities D gas particles are constantly moving gas particles are spaced far apart

Ammonia gas and oxygen gas react to form water vapor and nitrogen monoxide gas What volume of water would be produced by this reaction if 4 06 L of oxygen were consumed Also be sure your answer has a unit symbol and is rounded to 3 significant digits 0 0 C

These interactions contribute to the pressure on the walls of the container Pressure is defined as force p unit area The SI units of pressure are newtons per square meter N m or pascals Pa Slowly drag the temperature 7 slider back and forth Note In this Gizmo the Kelvin scale is used to measure temperature On the Kelvin scale 0 degrees is absolute zero the coldest possible temperature Absolute zero is equal to 273 15 C or 459 67 F A How does the change in temperature affect the speed of the molecules B How does the change in temperature affect the volume of the container

2 Scuba divers use tanks of compressed air to help them breathe Gases can be compressed because select all that apply A the volume of the gas particles is small compared to the overall volume of the gas B the distance between gas particles is less than the distance between particles of a liquid or solid 0 C there is empty space between the particles of a gas D gas particles are moving faster than the particles of a liquid or solid

12 Using the graph shown calculate the volume of the gas to two significant figures when the pressure is 150 kPa Pressure kPa 250 200 150 100 50 Volume V P 0 5 V P 1 0 1 5 Volume L V P 2 0 2 5

Gizmo Warm up The Boyle s Law and Charles s Law Gizmo shows a container of gas Inside small purple spheres represent gas molecules 1 Observe the particles Are they all moving at the same speed 2 How do the particles interact with the walls and lid of the container

A 25 gram sample of water is heated from 25 C to 40 C What is the heat energy in joules absorbed by the water during heating OA 1 569 J O B 21 J O C 88 O D 380 J

Reason and Apply 3 How many moles of hydrogen H gas are contained in a volume of 2 L at 280 K and 1 5 atm 4 What volume would 1 5 mol of nitrogen N gas occupy at standard temperature and pressure 5 Find the pressure of 3 40 mol of gas if the gas temperature is 40 0 C and the gas volume is 22 4 L 6 How many moles of helium He gas are contained in a 10 000 L weather balloon at 1 atm and 10 C 7 Suppose you have 1 0 mol of gas molecules in 22 4 L at STP Describe three ways you can get a gas pressure of 0 50 atm 8 Will the pressure of helium He gas be the same as the pressure of oxygen O2 if you have 1 mol of each gas each at a volume of 22 4 L and each at 273 K Explain your thinking

215 0 mol of an unknown gas is stored at a temperature of 1110 K in a large 395 L container In atm what is the approximate pressure of the gas R 0 0821 L atm mol K 550 atm 0 020 atm 50 0 atm 180 atm 22 0 atm 7 700 atm

3 An unknown solution gives a scarlet red flame test but no reaction with ammonium carbonate ammonium phosphate or ammonium sulfate The halide test produces no color in the upper hexane layer Identify a the alkali or alkaline earth element and b the halide present in the unknown solution

1 Tetraphosphorus hexaoxide MM 219 9 g mol is formed by the reaction of phosphorus MM 123 9 g mol with oxygen gas 32 00 g mol according to the equation below P s O g P406 s a Balance the equation b Given a mixture of 75 3 g of phosphorus and 38 7 g of oxygen what is the theoretical yield of tetraphosphorus hexaoxide in grams c If the reaction occurs at 1 3 atm and 23 what volume does the oxygen gas occupy before reacting

If a domestic car gets 14 miles per gallon on average how much carbon dioxide is emitted into the atmosphere when the car travels 335 miles Express your answer rounded to the nearest tenth of a pound of carbon dioxide lb of CO

A reaction at 26 0 C evolves 755 mmol of sulfur hexafluoride gas Calculate the volume of sulfur hexafluoride gas that is collected You can assume the pressure in the room is exactly I atm Be sure your answer has the correct number of significant digits volume L

A 5 00 L tank at 17 4 C is filled with 2 32 g of sulfur tetrafluoride gas and 6 52 g of carbon dioxide gas You can assume both gases behave as ideal gases under these conditions Calculate the partial pressure of each gas and the total pressure in the tank Be sure your answers have the correct number of significant digits sulfur tetrafluoride carbon dioxide partial pressure partial pressure Total pressure in tank 0 atm atm atm X 5

A 10 00 L tank at 17 7 C is filled with 15 7 g of boron trifluoride gas and 10 5 g of sulfur tetrafluoride gas You can assume both gases behave as ideal gases under these conditions Calculate the mole fraction of each gas Be sure each of your answer entries has the correct number of significant digits gas boron trifluoride sulfur tetrafluoride mole fraction 0 0 X

A reaction between liquid reactants takes place at 33 0 C in a sealed evacuated vessel with a measured volume of reaction produced 10 g of carbon dioxide gas Calculate the pressure of carbon dioxide gas in the reaction vessel after the reaction You may ignore the volume of the liquid reactants Be sure your answer has the correct number of significant digits pressure atm

Dinitrogen difluoride gas is collected at 14 0 C in an evacuated flask with a measured volume of 5 0 L When all the gas has been collected the pressure in the flask is measured to be 0 250 atm Calculate the mass and number of moles of dinitrogen difluoride gas that were collected Be sure your answer has the correct number of significant digits mass male mel

Calculate to three significant digits the density of carbon monoxide gas at exactly 35 C and exactly 1 atm You can assume carbon monoxide gas behaves as an ideal gas under these conditions 70

For many purposes we can treat propane C Hg a as an ideal gas at temperatures above its boiling point of 42 C Suppose the temperature of a sample of propane gas is raised from 38 0 C to 85 0 C and at the same time the pressure is increased by 5 0 Does the volume of the sample increase decrease or stay the same increase decrease stays the same If you said the volume increases or decreases calculate the percentage change in the volume Round your answer to the nearest percent

For many purposes we can treat methane CH as an ideal gas at temperatures above its boiling point of 161 C Suppose the temperature of a sample of methane gas is raised from 19 0 C to 14 0 C and at the same time the pressure is changed If the initial pressure was 5 3 atm and the volume decreased by 40 0 what is the final pressure Round your answer to the correct number of significant digits Matm ng