(a) The compound 1-iodododecane is a nonvolatile liquidwith a density of 1.20 g/mL. The density of mercury is13.6 g/mL. What do you predict for the height of a barometercolumn based on 1-iodododecane, when the atmosphericpressure is 749 torr? (b) What is the pressure, in atmospheres,on the body of a diver if he is 21 ft below the surfaceof the water when the atmospheric pressure is 742 torr?

Q: How many liters of gaseous hydrogen bromide at 29C and0.965 atm will a chemist need if she wishes…

A: Moles of HBr = Molarity × Volume                     = 1.20 M × 3.50 L = 4.2 moles. By using PV =…

Q: A mixture of Ne and Ar gases at a PT of 1.4atm. If there are twice as many mols of Ne as Ar, what is…

A: The mixture contains Ne and Ar in the ratio 2:1. Hence, mole fraction of Ar can be given as below,

Q: On a certain day, a laboratory barometer indicates that the atmospheric pressure is764.7 torr. A…

A: The required expression is given below.

Q: A gas In a bulb registers a pressure of 833 mm Hg in The manometer in which the reference arm of the…

A:

Q: 5. The pressure of a certain valley below sea level is 200 kPa, what will be the height of the…

A: Given: Pressure = 200 kPa

Q: 3) Given that an adult man who has fully exhaled during normal breathing has a thoracic volume of…

A: Boyle's law:  According to Boyle’s law, the absolute pressure exerted by a given mass of an ideal…

Q: (a) How high in meters must a column of glycerol be toexert a pressure equal to that of a 760-mm…

A: (a) Given Density of glycerol is 1.26 g/mL Density of mercury is 13.6g/mL The height of the mercury…

Q: The compound 1-iodododecane is a nonvolatile liquid with a density of 1.20 g/mL. The density of…

A: The density of mercury and 1-iodododecane is 13.6 g/mL and 1.20 g/mL, respectively. The atmospheric…

Q: What is the height of a column of liquid in a barometer if the density of the liquid is 1.478 g/mL…

A: Formula of pressure: P = hdg Where h = height, d = density, g = acceleration due to gravity Given,…

Q: When a research balloon is released at sea level, where thetemperature is 15.0C and the atmospheric…

A: Given: P1=101×105 PaV1=13 m3T1=15°C=288 k

Q: In a laboratory, oxygen gas was collected by the water displacement method at atmospheric pressure…

A: Given:  Total pressure (PT) = 96.8 kPa  Pressure of water vapour(Pwater) = 2.64 kPa  Temperature =…

Q: What would be the molar mass of a gas for which 2.43 x 10-2g occupies a volume of 7.68 mL at STP?

A: Given that, volume of gas at STP, V = 7.68 mL = 0.00768 L Mass of gas at STP, m = 2.43×10-2 g Molar…

Q: What is the pressure exerted by 1.54 g Xe gas at 17.0 °C in a 350-mL flask?

A:

Q: 3. At what temperature in kelvin is the root mean square speed of helium atoms (atomic weight =…

A:

Q: At constant pressure, the mean free path 1l2 of a gas moleculeis directly proportional to…

A: Let the mean free path be ƛ, temperature be T, Pressure be P and diameter be d. At constant…

Q: The root-mean-square speed of a gas at -83.62°C is 271.66 m s^-1. what is the molar mass of the…

A:

Q: Elemental analysis is performed on an organic liquid with a fishy odor. Vaporization of 255.0 mg of…

A: Here we can apply the gas equation to find the moles of organic compound used. Moles n = PV / RT…

Q: At what temperature would 2.10 mol N₂ exert 126.65 kPa of pressure in a 25.0 L tank?

A:

Q: It took 6.3 minutes for 25 mL of argon to reach the end of an effusion tube with a porous barrier.…

A: This question is based on Graham's law of effusion, which states that the lighter molecules will…

Q: What is the pressure in kilopascals of 1.926 x 10-6 moles of helium gas, if it occupies a volume of…

A: Ideal behaved gas and pressure calculation using ideal gas equation

Q: What volume must a balloon have to hold 6.20 kg of H2 for an ascent from sea level to an elevation…

A:

Q: What volume is occupied by 0.781 mol of CO2 at 237.5 K and 977 mmHg?

A: Write down what information is given to you

Q: On a single plot, qualitatively sketch the distribution ofmolecular speeds for (a) Kr(g) at -50 °C,…

A: The average velocity and root mean square velocity of gas molecules for a gas of molar mass M at…

Q: A 2.135g sample of a gaseous chlorofluorocarbon occupies a volume of 315.5 mL at 739.2 torr and…

A:

Q: The gill is an obscure unit of volume. If some H2(g) has avolume of 17.4 gills at 100°F, what volume…

A: Step : 1              What volume would it have if the temperature were reduced to 0°F ?

Q: If the pressure of the gas inside the flask were increased andthe height of the column in the…

A: On increasing pressure the height of open end of column is increased by 5.0 mm. This means the…

Q: In an N2 atmosphere, what temperature would a hot air balloon need to be to achieve neutral buoyancy…

A: Answer  Given that The buoyant force is equal to the weight of the displaced air

Q: A chemist is investigating the conversion of atmospheric nitrogen to usable form by the bacteria…

A: Given information,    1.25 g of nitrogen gas in a flask of volume 250 mL at 20 °C.         moles of…

Q: What is the molar density of Sam Smiths cologne at STP if their cologne is made up of a compound…

A: The volume occupied by any gas at STP condition will be 22.4 L for each mole of gas. The density is…

Q: The compound 1-iodododecane is a nonvolatile liquid with a density of 1.20g/mL. The density of…

A: This question is solved by using the simple concept of formula of pressure in terms of height and…

Q: 1. What will be the pressure of a sample of 48.0 g of oxygen gas in a glass container of volume 5.2…

A:

Q: Could 131 g of xenon gas in a vessel of volume 1.0 dm3 exert a pressure of 20 atm at 25 °C if it…

A: Ideal gases are hypothetical gases which do have real existence. A gas can behave ideally at low…

Q: 3.19K HI B. What mass of aluminum metal must be dissolved in excess hydroiodic acid to pro L of…

A:

Q: A sample of N2(g) occupies a volume of 42.5 mL under the existing barometric pressure. Increasing…

A: As per Boyle's law volume of given amount of an ideal gas is inversely proportional to the pressure…

Q: A 2.5 L canister under a pressure of 150 kPa at 20 °C is compressed to a volume of 1.5 L at 35 °C.…

A: The answer to the following question is-

Q: (a) How high in meters must a column of glycerol be toexert a pressure equal to that of a 760-mm…

A: Given: Density of glycerol=1.26 g/mL Density of mercury=13.6 g/mL Density of water=1.00×103 kg/m3…

Q: The atmosphere of Mars is mostly CO2 (molar mass 44.0 g/mol) under a pressure of 650 Pa, which we…

A: Introduction :  We have to calculate RMS and density .

Q: At what the pressure, in atmospheres, that O2 gas at 75°C has a density of 2.00 g/L?

A: According to ideal gas law, PV = nRT where P = pressure V = volume n = moles  R = gas constant =…

Q: If it takes 12.0 hours for a volume of nitrogen, N2 to effuse through pores in a balloon, how long…

A:

Q: If it takes 10.6 hours for 1.00 L of nitrogen, N2, to effuse through the pores in a balloon how long…

A: Given, volume of gas effused of N2 and He gas are 1.0 Ltime required to effused  N2  gas =10.6…

Q: What is the density of Freon-11 (CFCl3) at 135°C and 2.7 atm?

A: Given;

Q: Calculate the height of a column of liquid glycerol (d= 1.26 g/em³), in meters, required to exert…

A:

Q: The height of the mercury in the right arm of a manometer open to atmospheric pressure (760 mmHg) is…

A: The pressure of gas present inside the bulb is expressed as follows,

Q: The rare mineral nesquehonite contains MgCO3 together with water ofhydration. A sample containing…

A:

Q: Concentrated hydrogen peroxide solutions are explosively decomposed by traces of transition metal…

A: Given: Temperature = 298K Pressure =744torr

Q: Mass of a vacuumed (empty) vessel of volume 5 L is 640.05 g, and mass of the same vessel filled with…

A: Number of moles of hydrocarbon can be determined using Ideal gas Equation as follows,

Q: The pressure 25.0 meters under water is 347 kPa. what is this pressure in mmHg?

A: Given that: Pressure = 347kPa We know that: 1atm = 760mmhg

Mole Concept

Mole concept is a method to determine the amount of any substance that consists of some elemental particles using a grouping unit called ‘mole’. The mole concept enables one to handle the large amount of small elementary particles. The mole concept can be used in many calculations related to mole calculation, molar amount, mole ratio, and so on, which are significant in chemistry.