White phosphorus melts and then vaporizes at high temperature. The gas effuses at a rate that is 0.404 times that of neon in the same apparatus under the same conditions. How many atoms are in a molecule of gaseous white phosphorus?

Q: In a laboratory, two gases are simultaneously injected into cylinders with movable pistons. 15…

A: The objective of the question is to draw a correct conclusion from the given data about two gases…

Q: H2(g) O2(g) 4.0 g 64 g V = 10.0 L T = 300. K V = 10.0 L T = 300. K Representations of two gas…

A:

Q: What are inert gases? Give examples?

A: In the periodic table, the elements are classified and grouped together into various blocks. There…

Q: The pressure of this gas sample

A: Given data -  T = 6 oC = 279 K V = 22.30 L n = 1.19 mol Thus

Q: When heated to 350°C at 0.950 atm, NH4NO3 decomposes to produce, water, nitrogen and oxygen gases.…

A:

Q: In a 2.29 L flask, there are two gases (gas 1 and gas 2). There is 2.13 L of gas 1, with 3.7 bars of…

A: In order to find the final pressure of the gas mixture, we need to use the Ideal Gas Law, which…

Q: Calculate the temperature (in Celsius) of hydrogen gas

A:

Q: A sample of oxygen gas collected at a pressure of 196 mm Hg and a temperature of 303 K has a mass of…

A: Pressure of oxygen gas = 196 mmHg  ...Or  because 1 mmHg = 1/760 atm ...so,  = 196 × (1/760 ) atm  =…

Q: P4(g) + 6Cl2(g) → 4PCl3(g) 4.53 L of P4(g) is mixed with 6.80 L of Cl2(g) and reacts with 100%…

A:

Q: 44 liters of a certain gas weighed 66 grams STP. Calculate its density.

A: Density of a substance  is a mass of that substance compared to its volume. Density = mass ÷ volume…

Q: To what temperature in K must a variable volume container of helium gas be cooled to obtain a final…

A: Initial volume Initial temperature Final volume Final temperature

Q: You can heat ammonium carbonate to generate gaseous products of water, carbon dioxide and ammonia.…

A:

Q: What is the temperature of the gas in kelvins? Express your answer to three significant figures.…

A: Mole is defined as mass of substance divide by it's molar mass

Q: Describe in your own words, the contributions of each of the following scientists with respect to…

A: Boyle's law:  At constant temperature and for a fixed amount of an ideal gas, pressure of the gas is…

Q: Samples of chlorine, methane, and ammonia gas are stored at 25°C and 1 atm. Each sample contains 1…

A: Each gas is stored at 25oC and 1atm No of moles of each gas =1

Q: 5. A reaction yields 5.0 L of nitrogen monoxide. The volume is measured at 20°C and at a pressure of…

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

Q: 5. A reaction yields 3.0 L of nitrogen gas. The volume is measured at 119°C and at a pressure of…

A:

Q: Arsenic (III) sulfide is reacted with oxygen gas to form arsenic (III) oxide and sulfur dioxide.…

A:

Q: What volume of propane (C3H8) is required to produce 64.8 liters of water according to the followin…

A:

Q: 132.0 g of chlorine gas (Cl2) and 24.0 g of helium (He) are mixed in a container with a total…

A: Given,  Mass of. Cl2 = 132 g Molar mass of Cl2 = 71 g/mol Moles = mass/MM     = 132/71   = 1.86 mol…

Q: If you were to compare the composition of the air you inhale and the air you exhale, what…

A: The process where we inhale and exhale the air is called respiration. There is some compositional…

Q: A 0.12 molsample of nitrogen gas occupies a volume of 2.95 L. What is the volume of 0.32 mol of…

A: We know that  PV = nRT at contact temperature and pressure  V is directly proportional to n

Q: A 7.53 L container of oxygen gas at 12.1 °C is heated to 87.9 °C. Assuming that the volume of the…

A:

Q: There are two units of gas constant (R) and so be its value. Which value of R do you use in your…

A: Given:

Q: A 2.68 L container of oxygen gas at 27.9 °C is heated to 46.8 °C. Assuming that the volume of the…

A:

Q: At a given temperature and pressure, it takes 9.07 minutes for a 1.5-L sample of He (helium) to…

A: Answer:- This question is answered by using the simple concept of rate effusion which is inversely…

Q: 1.19 mol sample of neon gas at a temperature of 12.0 °C is found to occupy a volume of 24.3 liters.…

A:

Q: A vessel contains oxygen and nitrogen gas. The total pressure in this vessel is 280 atm. If oxygen…

A:

Q: 103.0 g of chlorine gas (Cl2) and 23.0 g of helium (He) are mixed in a container with a total…

A:

Q: What pressure would it take to compress 350. L of helium gas initially at 1.00 atm into a 2.00 L…

A: Boyle's Law : It states that pressure of a gas varies inversely with the volume at constant…

Q: A 8.86 mol8.86 mol sample of freon gas was placed in a balloon. Adding 3.50 mol of freon gas to the…

A: According to Avogadro's Law, the volume of the gas is directly proportional to the number of moles.…

Q: It takes a time of 22.4 min. for a sample of an unknown gas to leak from a faulty tank valve. A…

A: A famous chemist “Thomas Graham” stated that the rate of effusion of any gas depends on molar mass…

Q: How fast will nitrogen gas travel if carbon dioxide moves at a rate of 9.56 x 1026 molecules per…

A: According to Graham’s law, if a mixture contains two gases, then the rate of effusion at constant…

Q: A sample of oxygen gas initially at 391 K was heated to 445 K. If the volume of the oxygen gas…

A: Charles law: Volume of gas at constant pressure is directly proportional to temperature of gas. V α…

Q: 1.47 mol sample of helium gas at a temperature of 26.0 °C is found to occupy a volume of 20.6…

A: Given :-  Number of moles of gas = n = 1.47 moles   temperature of gas = T = 26 0C = 26 +273.15 =…

Q: At a particular temperature and pressure, the effusion rate of HCI gas is 813 particles per minute.…

A: Given that : At a particular temperature and pressure : The rate of effusion of HCl gas (R1)= 813…

Q: What volume of carbon monoxide is required to produce 62.9 liters of hydrogen gas according to the…

A:

Q: Calculate the rms speed of helium atoms at 100 c in units of meters per second

A: The square root of the average of the square of the speeds is known as root mean square speed. Which…

Q: The Goodyear blimp contains 4.75 x 10^6 L of helium at 28 degree Celsius and 1.05 atm. What is the…

A: The expression for ideal gas equation is given below,                        Here, P is the…

Q: A 10.0 g sample of O2 at standard temperature and pressure (STP) would occupy what volume in liters?

A: Given 10 g of O2 gas occupying at STP.

Q: If 1.04g of chlorine gas occupies a volume of 872ml, at a particular temperature and pressure, what…

A: The problem is based on the Avogadro's law which states that under similar conditions of temperature…

Q: Ideal Gas Law Combined Gas Law

A: Introduction:An ideal gas is a hypothetical gas in which molecules do not have any interaction,…

Q: A sample of nitrogen gas collected at a pressure of 871 mm Hg and a temperature of 279 K has a mass…

A: To solve this problem we have to use ideal gas equation which is given as  PV = nRT  Where , P =…

Q: A sample of krypton gas collected at a pressure of 758 mm Hg and a temperature of 296 K has a mass…

A: The objective of the question is to find the volume of a sample of krypton gas under given…

Q: A sample of helium gas at a pressure of 673 torr and a temperature of 24.8 celcius , occupies a…

A:

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.