Gaseous and liquid states Questions and Answers

6 Calculate the volume that a 0 323 mole sample of I2 gas will occupy at 265 K and a pressure of 0 90 atm Ideal Gas Law a 4 02 L b 2 96 L c 7 81 L d 3 03 L algas al omulov halti 197 8 16 8 8 8 8 18 0 323 mole 1 265 K 0 90 atm V

Which representation show what balloon Z resembles after each change occurs The pressure is halved and the Kelvin temperature is halved N The balloon is placed in a hyperbaric chamber at a pressure of 2 5 atm N

10 A flask is used to collect four gases at a total pressure of 4 87 If PHe 0 234 Atm PRn 0 458 Atm PNe 1 33 Atm what is the partial pressure of the remaining gas Xe Dalton s Law a 2 85 Atm b 1 47 Atm c 3 99 Atm d 4 72 Atm offad a 13 of 14 10 om Tivol 4 Pe 0 234 atm PR 0 458 atm Pre 1 33 atm Px 11 A sample of F2 is stored in a 14 L container at 87 Atm of pressure The vessel is punctured and the gas escapes to fill a 453 4 L room What is the new pressure Boyle s Law a 2 69 Atm b 5 07 Atm c 7 38 Atm d 1 00 Atm 0 container with puncture in top

5 Assuming a fixed amount of gas at constant volume complete the following table a b C P 3 85 atm 620 mm Hg 0 63 atm T 298 K 273 K 210 C P atm mm Hg 955 mm Hg T2 423 K 110 K

7 If N is added to a balloon that contains O partial pressure 370 mm Hg and CO partial pressure 200 mm Hg to give a total pressure of 740 mm Hg what is the partial pressure of each gas in the fin mixture 0 CO mm Hg mm Hg mm Hg

1 Iwo mole of any gas at Liters 2 The average distance traveled by a molecule between collisions is called 3 According to Kinetic Molecular theory of gases the average kinetic energy of the molecules is proportional to and 1 0 atm will occupy 4 The spread of one substance throughout a space is and escape of gas called molecules through a tiny hole is called 111 5 Hydrogen H makes hydrogen bond with 3 adjacent elements which are

9 A cylinder contains 9 moles of Oxygen gas O 5 moles of Nitrogen gas N and 6 moles of Carbon dioxide gas CO What is the mole fraction of Nitrogen gas in the cylinder Marks 5 a 0 25 b 0 5 c 0 75 d none of these 2 2 0 SO 10 g and CO 10 g were placed in a 800 mL container at 10 0 C The total pressure in the container is 5 Marks 1 cm a 11 1 b 15 2 c 20 d none of these What will be the density of SO gas at 0 C and 1 5 Marks a 1 96 g L c 4 0 g L b 3 5 g L d none of these

2 A mixture of O2 CO2 and N2 has a total pressure of 0 97 Atm What is the partial pressure of O2 if the partial pressure of CO is 0 70 Atm and the partial pressure of N2 is 0 12 Atm Dalton s Law a 0 15 Atm b 0 29 Atm c 2 04 Atm d 1 37 Atm 3 The initial volume of a sample of Rn gas is 0 67 L Its initial temperature is 362 K It s temperature is increased until the new volume is 1 12 L What is the new temperature Charles Law a 618 55 K b 447 02 K c 672 11 K d 589 47 K 0 67 L 342 K CO 0 Heat is applied 1 12 L 2K

In a pressure cooker water boils at 116 C What is the pressure inside the cooker Pa

6 The vapor pressure of water at 20 0 C is 17 5 mm Hg If the pressure of a gas collected over wat was measured to be 453 0 mm Hg What is the pressure of the pure gas soiod ol a 0 0230 atm 0 619 atm 0 573 atm 17 5 mm 156pm to instaharli 29taiquoo ized inril satorio unit mm Hg x 0 596 atmer or Leape mouenturones He 760 mm Hgs to Hq sd 21 Wa ai and WI ITA none of the above molt

ig point of noble gases is O He Ne Ar Kr Xn O He Ne Ar Kr Xn O He Ar Ne Kr Xn

If I have 2 40 moles of gas held at a temperature of 370 K and in a container with a volume of 4 5 L what is the pressure of the gas

If I have 72 0 L of carbon dioxide gas held at a pressure of 3 40 atm and a temperature of 225 K how many moles of gas do I have PV nRT

A sample of ammonia gas or NH3 has a volume of 15 0 L at 300 K and 1 2 atm Calculate its mass Hint First solve for moles n and then convert moles to grams

a b C d Substances are gases in this reaction C 2B 3A 3A 2B Ctr A B C 1 2 B C 1 3 A homo g none of the above begra A A Consider the reaction 2N2O g O2 g 2N2 g Which of the following will cause a shift in best pitch equilibrium to the right 1 Add more N 0 2 Remove 02 3 Remove N2 a 1 and 2 only b 1 and 3 only e 2 and 3 only d All of 1 2 and 3 is ti gailen ydajadw cofron a lo p Neither 1 2 or 3 Cred caniallies to dong orom yderow ainsson sdi to 21 batre stron dodat

A sample of oxygen gas at 277 K exerts 2 16 atm of pressure on its 41 8 L container How many moles of O2 are in the sample The ideal gas constant is 0 0821 L atm mol K Round your answer to the nearest 0 01 and include correct units Your Answer

A closed adjustable cylinder containing 6 2 moles of oxygen gas has a volume of 4 3 liters and a pressure of 0 6 atmospheres If the cylinder s volume is changed so that it is 12 1 liters what is the new pressure of the gas Round your answer to the nearest 0 01 atm Your Answer

A 14 What is the temperature C of 2 48 moles of gas stored in a 300 L container at 1559 mm Hg a 302 R 0 0821 L atm mol K PV nRT b 189 29 d 84 e none of the above Divl P 1559 mm Hg n 2 48 moles T V 30 OL R 0821 1559 30 2 48 0821 46770 203608 T 203608 229706 10 HOTOVITO 61 53947368

What is the maximum mass of ammonia that can be formed when 42 74 grams of nitrogen gas reacts with 10 62 grams of hydrogen gas according to the following equation Please round your answer to the nearest 0 01 gram N 3 H 2 NH3 Your Answer

Be sure to answer all parts Select the elements that exist as gases at room temperature Hint Most of these elements can be found in Groups 5A 6A 7A and 8A 00 P As Sb O O O 0 S Se Te 0 H Br F Ch C B He Ne Ar Kr

M 27 28 29 31 2 points The process which occurs when the vapor pressure of a liquid is equal to the atmospheric pressure is called vaporization boiling transpiration evaporation 00 O O Previous

2 points The pressure and temperature of a gas are sometimes inversely directly proportional

24 2 points Which of the following would affect the volume of a gas The temperature of the gas The size of the container in which the gas is stored All three answers are correct The pressure of the gas Previous

och 199 3 O E 2 3 2 7 2 points Will a balloon filled with BHO sink or float in air float sink Previous

17 2 points At constant T if the number of moles of a gas is decreased and the volume increased then P will increase decrease remain unchanged Previous

11 2 points A tank contains 2600 g of fluorine gas and has a volume of 16 0 L and a temperature of 23 C What is the pressure in the tar 1266 atm 104 atm 633 atm 208 atm OOO

item id 11254709 TOJ A gas with a volume of 4 0 L at a pressure of 2v5 kPa is allowed to expand to a volume of 12 0 L W is the new pressure 11 Calculate the decrease in temperature when 6 00L of a gas at 20 C in compressed to 4 00 L 12 A container containing 5 00 L of a gas collected at 100 K is allowed to expand to 20 01 What in

4 2 points At constant P n and V are doubled causing the temperature to O decrease remain unchanged increase O

15 A gas balloon has a volume of 106 0 mL when the temperature is 45 0 C and the pressure of 759 mmHg What will the volume be at 20 0 C and a pressure of 780 mmHg 16 If 10 0 L of oxygen at STP is heated to 512 C what will the new volume be if the new pressure of 1355 mmHg 17 The pressure of a gas is reduced from 1200 mmHg to 850 mmHg as the volume of the container is increased from 85 0 mL to 144 0 mL What will the final temperature be if the initial temperature was 90

13 A gas occupies 900 0 L at a temperature of 27 0 What is its new volum at 14 If 15 0 L of neon at 25 C is allowed to expand to 45 0L what must the new temperature be to maintain constant pressure 15 A gas balloon has a volume of 106 0 mL when the temperature is 45 0 C and the pressure of 759 mmHg What will the volume be at 20 0 C and a pressure of 780 mmHg 16 If 10 0 L of oxygen at STP is heated to 512 C what will the new volume be if the new pressure of 1355 mmHg 17 The pressure of a gas is reduced from 1200 mmHg to 850 mmHg as the volume of the container is increased from 85 0 mL to 144 0 mL What will the final temperature be if the initial temperature wa 90

2 points A helium filled balloon has a volume of 2 3 L a temperature of 25 C and a pressure of 17 3 psi How many grams of helium does the balloon contain 0 11g 6 5 g 0 44 g 5 2 g

Identify the principal type of solute solvent interaction in a solution of NH3 in C H5OH ion dipole interactions dipole dipole interactions dispersion forces O hydrogen bonding Identify the principal type of solute solvent interaction in a solution of H S in CH OH O ion dipole interactions dipole dipole interactions hydrogen bonding

2NBra 3NaOH N 3NaBr 3HBrO How many NaBr formula units are formed when 50 NBrg molecules and 57 NaOH formula units react Formula units are the equivalent of molecules for lonic compounds e g 1 NaBr or 1 NaOH is one formula unit NaBr formula units

In the laboratory you are asked to make a 0 210 m cobalt II chloride solution using 255 grams of water How many grams of cobalt II chloride should you add grams

the volume reduce O The volume increase 4 folder Doubling the temperature likewise doubled the pressure Question 6 What happens to a sealed container s pressure at constant volume if you heat a gas so that you give the molecules more energy so they move faster O Pressure increases 1 pts O Pressure remains unchanged

the relationship between volume and temperature if pressure and amount of gas are held constant the relationship between temperature and volume if pressure and amount of gas are held constant O the relationship between pressure and temperature if volume and amount of gas are held constant O the relationship between the amount of gas and temperature if pressure and volume are held constant Question 8 What does Boyles Law say O volume and pressure are directly proportional O volume and pressure are inversely proportional

29 If I contain 3 moles of gas in a container with a volume of 60 liters and at a temperature of 400 K what is the pressure inside the container 5pts

What happens if a sealed container is heated at constant volume and quantity O Pressure increases O pressure decreases O volume decreases O Volume increases Question 2 What happens if a sealed container s volume decreases at constant temperature and quantity O Pressure decreases No answer text provided Pressure increases

What does Avogadro s Law say volume and the amount of gas are independent of each other volume and the amount of gas are inversely proportional O volume and the amount of gas are directly proportional Question 10 What does Gay Lussacs Law say pressure and temperature are independent of each other O pressure and temperature are inversely proportional O pressure and temperature are directly proportional

A new basic anti arrhythmic Kb 3 27 x 105 mol wt 472 6 is found to have a partition coefficient of 2 65 between blood and heart muscle tissue favoring the blood If 1 25 x 10 8 M is required to be delivered to the heart how many milligrams must be administered Recall that blood pH 7 400 Assume that the conjugate acid is not soluble in heart muscle tissue and that the patient has a total of 4 00 L blood

D What happens if a sealed container s pressure decreases at constant volume and quanti Volume decreases O Temperature remains unchanged O Temperature increases O Temperature decreases Question 4 What happens to a sealed container s volume at constant pressure and mass O Decreases by a factor of 2 if the temperature is doubled O Inversely proportional to the temperature O Independent of the temperature

106 0 g of chlorine gas Cl and 36 0 g of helium He are mixed in a container with a total pressure of 1 309 mmHg Determine the partial pressure of helium gas Answer mmHg

What is the term for when the system gets colder from a liquid Liquid to Solid

39 40 41 42 49 2 points A hot air balloon floats because hot air is chemically different than cold air molecules of hot air move faster than molecules of cold air the molar mass of hot air is less than that of cold air hot air is less dense than cold air Previous

7 8 39 40 41 42 44 2 points At standard temperature and pressure four grams of helium gas occupy a volume of 22 4 L Under the same conditions what volume would 2 grams of hydrogen gas occupy 44 8 L 5 6 L 11 2 L 22 4 L Previous

36 2 points The pressure and volume of a gas are inversely sometimes O directly proportional

6 2 points Both V and n are doubled while P remains constant What change occurs in T decrease remain unchanged increase Previous

A balloon will sink in air if the gas filling it is more polar heavier more dense more viscous than air

L 18 2 points At constant n P is doubled and T is halved causing V to decrease increase remain unchanged

5 2 points The conversion of a liquid into a gas at a temperature below the boiling point is called condensation vaporization evaporation boiling