A sample of helium gas occupies 7.88 L at 55.28°C. Calculate the new volume, in L when the temperature decreases to 12.86°C. Assume P and n are constant.

Q: An 0.642 mol sample of nitrogen gas at a temperature of 19.0°C is found to occupy a volume of 27.5…

A: so in this we use PV=nRT V=27.5 l T=19+273=292 K n=0.642 mol P= nRT/V     = 0.642*(0.0821 L atm…

Q: Suppose the gas mixture produced by the decomposition reaction is trapped in a container at 17.0°C;…

A:

Q: A 1.35 g sample of an unknown gas at 43 ∘C and 1.10 atm is stored in a 1.45 L flask. What is the…

A: The density is calculated by using given mass and volume.

Q: Consider the following samples of gas. Select the set of graphs below that show the distributions of…

A: The molecular speed of any gas depends on temperature and molar mass of the gas.The molecular speed…

Q: A sample of helium at 20 °C occupies a volume of 7.90 L at a pressure of 6.32 atm. What volume does…

A: Given that temperature is constant. Pressure and volume are changing.

Q: Suppose the gas mixture produced by the decomposition reaction is trapped in a container at 17.0°C;…

A:

Q: Chlorine is widely used to purify municipal water supplies and to treat swimming pool water. Suppose…

A: 8.80 L of Cl2 gas has a pressure of 890 torr at 23 °C .We have to calculate - A. Grams of Cl2 are…

Q: For many purposes we can treat ammonia (NH,) as an ideal gas at temperatures above its boiling point…

A:

Q: A gas cylinder contains 2.45 mol He, 1.85 mol Ne, and 2.15 mol Ar. If the total pressure in the…

A:

Q: A sample of gas occupies 4.23L at 3.46 atm. what is the volume at 2.25 atm? (assume T is a constant

A: Given P1 = 3.46 atm V1 = 4.23 L P2 = 2.25 atm V2 = ?

Q: Consider the following unbalanced equation: C2H5OH(g) + O2(g) → CO2(g) + H2O(l) 1.55 g of ethanol…

A:

Q: A sample of krypton gas occupies 5.00 L at 4.89 atm. What volume does the gas occupy at 10.4 atm?…

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: Use the References to access important values if needed for this question. A 1.60 mol sample of CO₂…

A: Given that, Volume and Temperature are constant We know that, Expression for Kinetic Energy (K.E) =…

Q: 1) A sample of Cl2 gas has a volume of 11.0 L at a pressure of 1.50 atm and a temperature of 23 ∘C.…

A: 1) Given that : Initial volume(V1) = 11 L Initial pressure(P1) = 1.50 atm Initial temperature(T1) =…

Q: A certain mass of nitrogen gas occupies a volume of 3.91 L at a pressure of 9.80 atm. At what…

A:

Q: A sample of neon gas occupies a volume of 1.00L at 27.00C and 0.660 atm. What is the new volume if…

A: The problem involves changes in volume, temperature, and pressure of a gas. This is a typical…

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: The volume of an automobile tire is 2.5 × 10−2m3 . the pressure of the air in the tire is  2.7 atm…

A: The question is based on the concept of physical chemistry. we have to calculate the amount of air…

Q: A sample of hydrogen gas that occupies a volume of 37.7 L at a temperature of 0 °C and a pressure of…

A: The number of moles of a gas is calculated using the ideal gas equation. The ideal gas equation is…

Q: A sealed flask contains 3.1 L of a gas at 2.4 atm and 22.7 °C. If the density of the gas is 9.7 g/L,…

A:

Q: If 8.0 g of fluorine gas and 5.0 g of neon gas are injected into a 1.8 L vessel at a temperature of…

A: Ideal gas equation: The temperature, pressure, volume, and mole of the gas are related to the ideal…

Q: The density of a gas at 37° C and 175kPa is 14.7g/L. Determine the molar mass of this gas. -…

A:

Q: A sample of an unknown gas is found to have a density of 2.23 g/L at a pressure of 1.10 atm and a…

A: Temp = 39 °C = 39 + 273.15 = 312.15 K Pressure = 1.10 atm density = 2.23 g/L

Q: sample of neon gas at 290 K and 0.831 atm occupies a volume of 4.89 L. If the pressure of the gas is…

A: PV = nRT  Ideal gas equation   R is gas constant ,T is temperature ,V is volume  P is pressure ,n is…

Q: A sample of gas contains 4.19 moles at 37.8 °C in a volume of 3.61 L. If 2.67 moles of gas are…

A:

Q: A 2.4 L sample of a gas at fixed mass and constant temperature exerts a pressure of 1.2 atm. What…

A:

Q: 3. A sample of nitrogen occupies a volume of 0.50 L at 20.0°C. What volume would the gas occupy at…

A: According to the Charle's law at constant pressure , volume is directly proportional to the…

Q: 7. A 2.50-L volume of hydrogen measured at –196 °C is warmed to 100 °C. Calculate the volume of the…

A:

Q: The mass of a sample of gas is 827 mgmg. Its volume is 0.270 LL at a temperature of 88 ∘C∘C and a…

A:

Q: The density of a noble gas is 10.31 g/L at 3.0 atm and 25.0 ⁰C . Identify the gas

A:

Q: Convert 715.4mmHg into units of atm.  Give your answer to the correct number of significant…

A: 1 mm Hg  = 0.0013 atm.

Q: If a gas occupies 33.0 L at 50.0 ⁰C, what volume will it occupy at 100. ⁰C, assuming the pressure…

A: We know ideal gas equation , PV = nRT  where, P- pressure of gas  V- volume of gas  n- Number of…

Q: If a gaseous mixture is made by combining 4.55 g Ar and 2.24 g Kr in an evacuated 2.50 L container…

A:

Q: A sample of gas at 830.0 mmHg and occupying a volume of 12.66 L has an increase in pressure to…

A:

Q: A sample of gas occupies 782. mL at standard pressure. What volume will the gas occupy at a pressure…

A: Boyle's law states that volume of a fixed amount of a gas is inversely proportional to the…

Q: A sample of unknown gas effuses in 74.1 minutes. An equal volume of argon in the same apparatus at…

A:

Q: The volume of an automobile tire is 2.5 × 10−2m3 . the pressure of the air in the tire is  3.1 atm…

A: Given: Volume of tire = 2.5 X 10-2 m3 = 25 L                                          (Since 1 m3 =…

Q: A sample of 0.400 L Ne initially at 1.181 atm and 240.ºC and a 0.150 L sample of O2 initially at…

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

Q: What mass of potassium chlorate is needed to generate 167.0 L of gas, composed of 99.00 L of N2 and…

A:

Q: If a gas filled balloon has a volume of 1 Liter at ten feet underwater, would you predict the volume…

A: The volume of the balloon would decrease.

Q: Calculate the mass of Kr in a 8.57 L cylinder at 96.6 °C and 4.48 bar. mass: g

A:

Q: A sample of neon gas occupies a volume of 6.42 L at 68.0°C and 331 torr. If the volume of the gas…

A:

Q: A gas initially at 4.83 L, 1.36 atm, and 81°C undergoes a change so that its final volume and…

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.