Gaseous and liquid states Questions and Answers

8 2 points Which will have a greater volume at STP 32 0 g of O2 or 32 0 g of 03 02 O They will have the same volume 03

In a methane propane mixture of gasses the partial pressure of methane is 530 torr and the partial pressure of propane is 250 torr What is the total pressure in torr Enter your answer to the nearest whole number and do not include units

What are the main ideas of Kinetic Molecular Theory KMT Characteristics of Gases CHARACTERISTIC DESCRIPTION

POSSIBLE POINTS 6 25 A container holds a mixture of 3 01 x 1023 molecules of H gas 1 20 x 1024 molecules of CO gas and 1 50 x 1024 molecules O If the total pressure of the container is 1 00atm what is the partial pressure of oxygen gas in atmospheres O 5 00 x 10 1 atm O 250 x 10 1 atm O 200 x 10 1 atm O 9 09 x 10 2 atm

6 In what phase is the substance at 20 C and 1 atm P latm 10 20 30 T

5 A sample of gas occupies 500 0 mL at STP What volume will the gas occupy at 90 0 C and 510 0 torr

10 In a laboratory experiment 259 mL of gas was collected over water at 24 5 C and 751 5 torr Calculate the volume that the dry gas would occupy at STP

se the balanced equation and limiting excess alculate an answer using PV nRT empt History ST Attempt Attempt 1 Correct answers are hidden e for this attempt 1 25 out of 3 nitted May 16 at 12 51pm attempt took 105 207 minutes Question 1 Take the Quiz Again Time 105 207 minutes Score 1 25 out of 3 0 25 0 25 pts A person has a sample of nitrogongar at

3 What volume would 9 5 g of molecular nitrogen gas occupy at 200 0 K and 2 0 atm

7 A 660 mL volume of hydrogen chloride gas is collected at 27 5 C and 720 0 torr What is the volume at STP

D OY OZ OS O need more information Question 22 The strength of intermoleau lar forces in a substance of the bilowing is a limiting reactant in this reaction O is directly proportional to the substance s melting and boiling points O is inversely proportional to the substance s melting and boiling points O is directly proportional to the substance s melting point and inversely proportional to the substance s boiling point O is inversely proportional to the substance s melting point and directly proportional to the substance s boiling point

3 Write and balance the chemical reaction of carbon dioxide dissolving in water including phases for all species 4 What type of solution is formed when this dissolution occurs

62 A container hidden on another planet holds 13 1 liters of air during the night During the day it holds 15 0 liters of air at 31 C 1 What is the night temperature on the planet in kelvin 2 in C

57 You blow up a balloon to 100 0 mL in a room that is 27 0 C If you take the balloon outside where it reaches equilibrium with an air temperature of 3 0 C what is its new volume

14 Cylinder A contains CO2 g and Cylinder B contains N2 g The volumes pressures and temperatures of the two gases are indicated under each cylinder Cylinder A Cylinder B Jnatanoo entsch to onuzzangs bmx 0 0 21 CO g V 12 3 L P 1 0 atm T 300 K 972 220g bru av mixotuus silu jefo 01 N g V 12 3 L P 1 0 atm T 300 K alo smulov ori a 16AW II A What is the total number of moles of CO2 g in cylinder A B A student claims that the number of moles of nitrogen in Container B is the same as Refer the number of moles of carbon dioxide in Container A Do you agree or disagree with the compr student s claim Explain your reasoning or justify with a calculation

79 Explain how a molecule that contains polar bonds can be nonpolar

Which statement uses the kinetic molecular theory to best describe ideal gas molecules O The molecules strongly repel each other O The molecules have weak chemical bonds O The molecules are in constant random motion O The molecules lose energy as they collide together

What mass of iron Fe can be obtained from 3 80 g iron III oxide Fe O3 reacting with excess carbon monoxide CO

Which of these are ignored for the kinetic molecular theory of matter The size of the particles The mass of the particles The interactions between particles The average kinetic energy of the particles

2 Pick one example from the slide of hydrogen bonding forces a What is the boiling point of this substance b Look up the boiling point of an analogous compound where the electronegative atom is replaced with a different element from the same column example if your example above was CH NH you might look up CH PH How do these boiling points compare How can you explain the differences

Pick one example from the slide of ion dipole forces a Describe how the molecules and ions are interacting to create these IMFs Be specific

D 33 8 grams of octane are completion in a 28 1 L container at 557 K what will the partial pressure of be in psi 2 C3H18 g 25 O g 16 CO g 18 H O g Question 17 1 pts Orcuming all of the reactants were consumed in the octane combustion in the previous question what will

33 8 grams of octane are burned according to the balanced equation below If the reaction proceeds to completion in a 28 1 L container at 557 K what will the partial pressure of carbon dioxide in the container be in psi 2 C8H18 g 25 O g 16 CO g 18 H O g 3 85

1 The volume of a gas at 0 99 Atm is 300 0 mL If the pressure is increased to 1 88 Atm what will be the new volume d Boyle s Law T56 m a 0 276 L b 0 158 L c 1 037 L d 2 164 L SS L ballona of CO2 last a temperature of 18 C 1 Volume 1 Volume 2

I have 117 L of gas at a pressure of 0 5 atm and a temperature of 325 K If I raise the pressure to 1 2 atm and measure the final volume to be 48 L what was the final temperature of the gas 320 K 10 4 K 330 K

How many moles are there in 4 5 L of H gas at STP 00 20 moles 9 09 moles 4 97 moles 100 8 moles

A reaction produces 12 75mol of oxygen gas If the pressure in the room is 1 25atm and the temperature if 164 68 C what volume of oxygen gas was produced in liters Reaction 6CO2 g 6H O g C6H12O6 1 902 g

56 You are going to SCUBA dive to a depth where the pressure is 3 016 mmHg and the temperature is 4 00 C If you were to take a beach ball with you what would its new volume be if it contained 2 00 liters of air under a pressure of 748 0 mmHg and a temperature of 26 7 C at the surface

A person reacts 8 77mol of nitrogen gas with 9 81mol of hydrogen gas What volume of ammonia NH3 is likely to form if the temperature of the reaction is 21 55 C and the pressure in the room is 2 79atm Reaction N2 g 3H2 g 2NH

A person has a 4 80L sample of nitrogen gas at 21 20 C and a pressure of 25 00atm If the sample is reacted with excess hydrogen gas according to the reaction below what mass in grams of ammonia NH3 is likely to form Reaction N2 g 3H2 g 2NH3 0

48 A swim team member inflates a balloon to 2 00 liters at the surface and takes it on a dive to the bottom of the pool The pressure is 1 21 atm at the bottom of the pool Assume the pool is at sea level 1 What will happen to the balloon volume 2 What is the new volume of the balloon I 3 Why is the pressure so high at the bottom of the pool

A person has a sample of nitrogen gas at 21 46 C and a pressure of 5 60atm If the sample has a volume of 31 75L how many particles in moles of nitrogen gas are present

A 0 50 ml CO bubble gets heated from 26 4 C to 150 2 C What is the new volume of the bubble 47

Current Attempt in Progress 3 70 g of an unknown gas at 25 0 C occupied the same volume as 0 184 g of hydrogen gas at 17 0 C and at the same pressure What is the molar mass of the gas O 39 1 g mol 59 1 g mol 41 3 g mol O 20 7 g mol

Find the volume in mL occupied by 7 000 g of nitrogen gas at 27 0 C and 750 torr 6240 mL 1120 mL 1 94 mL 562 mL

Current Attempt in Progress Find the volume of 6 00 g of hydrogen at 1 50 atm and 273 K 179 L 6 77 L 89 6 L 044 8L

The sample represented below begins as a solid and is heated to a gas at a constant rate Temperature C 200 180 160 140 120 100 80 Temperature Versus Time for a Sample 20 What is the melting point and the total time required to completely melt the sample after it has reached the melting point 110C and 4 minutes 50C and 5 minutes 110C and 14 minutes 78 10 11 12 13 14 15 16 Time min 50C and 3 minutes

Select the statement s that apply to the kinetic molecular theory of gases Because the space between gas particles is large gas particles exert no attractive forces on each other When gas particles collide with each other they stick together and form a larger particle A gas consists of particles that move randomly and rapidly The kinetic energy of gas particles is independent of the temperature The size of gas particles is small compared to the space between the particles When gas particles collide with the wall of a container they exert no pressure

9 If 22 5 L of nitrogen at 756 mmHg is compressed to 700 mmHg what is its new volume

4 A container of Br2 gas has a pressure 1 25 Atm at a temperature of 303 K If the pressure in the container is increased to 2 01 Atm what is the new temperature Gay Lussac s Law a 450 7 K b 489 1 K c 502 5 K d 525 8 K 1 25 Atm 5 A sample of Ne gas occupies 0 22 L at 0 86 Atm of pressure What will be its volume at 0 292 Atm of pressure Boyle s Law a 0 647 L b 0 241 L c 0 390 L d 0 825 L 0 36 Atm aucur 2 01 Atm it 0 315 0 292 Atm

If a scuba diver releases a 11 mL air bubble below the surface where the pressure is 2 2 atm what is volume in mL of the bubble when it rises to the surface and the pressure is 1 0 atm mL

Boyle s Law Problem Directions Read and understand each problem Use Boyle s law to solve the problem by writing the given equation and solution Box your final answer Write the answer on your answer sheet 1 A scuba diver needs a diving tank in order to provide breathing gas while he is underwater How much pressure is needed for 6 00 liters of gas at 1 01 uns atmospheric pressure to be compressed in a 3 00 liter cylinder

5 A sample of gas has a volume of 2500 mL and a pressure of 0 7 atm at room emperature The entire sample is transferred to a different container which has a olume of 500 mL The final pressure of the gas that results from the transfer is 2 0 tm What is the final temperature of the gas in K Assume the gas behaves like an leal gas a 170 K b 0 0059 K c 70 K d 0 07 K

original as predicted by Dalton s law PRACTICE 12 9 Hydrogen gas was collected by downward displacement of water A volume of 600 0 mL of gas was collected at 25 0 C and 740 0 torr What volume will the dry hydrogen occupy at STP ONLINE LEARNING MODULE Determining the Volume of a Dry Gas WileyPLUS KEY TERM Dalton s law of partial pressures partial pressure

Rainbow Lake is at an elevation where the air pressure is 670 torr and the current water temperature is 20 C A particular fish species requires a minimum dissolved oxygen concentration of about 8 5 mg L in order to live Note The Henry s Law constant for O at 20 C is 1 38 10 3 M atm Question 6 What is the dissolved oxygen concentration in mg L under the existing conditions at Rainbow Type numbers in the boxes Lake mg L 10 points Question 7 Fill in the blanks by selecting one option from each menu ab Part 1 2 points If the temperature in Rainbow Lake changes which conditions favor this fish species survival Part 2 3 points aby Part 3 3 points Can this fish species survive under the existing conditions at Rainbow Lake for at no C is Y 8 points 1

What is the term for when the system gets hotter from a liquid Liquid to Gas

Using the given boiling points predict which compound has the higher vapor pressure at a given temperature a ethanol C H5O bp 78 C or 1 propanol C H O bp 97 C select b hexane C6H14 bp 69 C or octane CgH18 bp 125 C

9 What is the temperature required for 0 047 moles of at a pressure of 0 988 Atm Ideal Gas Law a 523 72 K b 464 02 K c 278 15 K d 305 13 K 12 How many moles of H gas are in a 20 L cylinder at 27 C and a pressure of 1 07 Atm Ideal Gas Law 0 047 molen Kr 1 20 L 0 988 atm a 3 019 moles b 4 261 moles c 2 750 moles d 0 869 moles n mole H 27 C 1 07 atm V 20 L

How many moles of oxygen O are contained in a 1 7 L cylinder that has a pressure of 154 atm am temperature of 14 C mol

7 The pressure in a car tire is 1 88 Atm at 25 C What is the new pressure if the temperature increases to 37 0 C Gay Lussac a 2 72 Atm b 1 96 Atm c 3 60 Atm d 8 41 Atm Gas Laws Charles Law L a 0 370 L b 2 014 L c 1 552 L d 3 947 L 1 88 atm 25 C 8 A 0 355 L balloon of CO2 is at a temperature of 18 C It is heated to 30 C What is the new volume 0 355 L 18 C P Heat is applied F 37 C L 30 C JZYY