A tank of helium gas with a pressure of 210 torrtorr at 0∘C∘C is heated to give a pressure of 1100 torrtorr . Express your answer using two significant figures.

Q: es by 50% and pressure decreases to 60% of its original value. If the original temperature was…

A: It is found, on heating a gas, its volume increases by 50%, and pressure decrease to 60% of its…

Q: What is the pressure, in pascals, exerted by 1299 g CO(g) when confined at -29 ∘C to a cylindrical…

A: Provided mass of CO=1299g Molar mass of CO= 28g/mol Moles of CO=(1299g)/(28g-mol-1) Moles(n) of…

Q: Under constant-pressure conditions a sample of hydrogen gas initially at 88oC and    9.6 L is cooled…

A: Given values are, Initial temperature =T1=88°C = 88+273.15 K = 361.15 K Initial volume V1= 9.6 L…

Q: A sample of argon gas at 22.38 °C has a pressure of 94.88 kPa and occupies 28.46 L. How many moles…

A: Ideal Gas Law :-  PV = nRT  P is the pressure of gas  V is the volume occupied by gas n is the…

Q: A sample of argon gas at 55.19 °C has a pressure of 92.56 kPa and occupies 5.71 L. How many moles of…

A: In this question, we want to determine the number of moles of Argon gas  You can see details…

Q: If 0.875 L of gas at 286 K expands to 1.731L at 311K and 1.54 atm, what was its inital pressure?

A:

Q: If 22.5L of nitrogen at 748mm Hg are compressed to 725mm Hg at constant temperature, what is the new…

A: According to Boyle’s law:

Q: What will the pressure inside the container become if the piston is moved to the 1.20 L mark while…

A: The ideal gas equation is given by: where P is the pressure of the gas, V is the volume of the gas,…

Q: What is the pressure in a 12.0-L cylinder filled with 34.7 g of oxygen gas at a temperature of 322…

A:

Q: [3] A mixture of 10.00 g of N2 and 10.00 g of Ar is placed in a 1.00 1 container at 25°C. What is…

A:

Q: Analysis of a gaseous compound shows that it is 18.47% C, 58.43% F, 21.54% N, and 1.55% H.  a. What…

A: Since you have posted multiple questions, we will solve first question for you. If you want any…

Q: What volume is occupied by 20.3 g of argon gas at a pressure of 1.47 atm and a temperature of 449 K?…

A: According to ideal gas equation, PV = nRT Therefore, Assuming this to be an ideal gas , The volume…

Q: What pressure is required to compress 196.0 liters of air at 1.00 atm into a cylinder whose volume…

A: We have initial volume as 196 L Initial pressure as 1 atm  Final volume as 26 L Final pressure to be…

Q: The atmospheric pressure on Mount Logan in the Yukon is 520. mbar. What is the pressure in torr?…

A: The given unit conversion can be done by using following relation: 1 bar = 750.062 torr

Q: What pressure is required to compress 196.0 liters of air at 1.00 atmosphere into a cylinder whose…

A: Given,Volume of air (V1) = 196.0L.Pressure of air (P1) = 1.00atm.Volume of cylinder (V2) =…

Q: Calculate the density of propane gas at 780 torr and 40 0C.

A: Ideal gas law states that the product of volume (L) and pressure (atm) is equal to the product of…

Q: Helium-filled balloons are used to carry scientific instruments high into the atmosphere. Suppose…

A: Helium-filled balloons are used to carry scientific instruments high into the atmosphere. Suppose…

Q: A sample of N2O gas has a density of 3.00 g/L at 298 K. What must be the pressure of the gas?…

A:

Q: Under constant pressure conditions a sample of hydrogen gas initially at 23.00 degrees Celsius and…

A: According to Charles law, at constant pressure the volume and temperature are directly proportional.

Q: To what temperature must neon atoms be cooled so that they have the same rms speed as N2 molecules…

A: we have   vrms=3RTM   Equating (v)rms for Ne and N2, we have (v)rms(Ne) = (v)rms N2…

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

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

Q: If 15.0 liters of neon at 25.0oC is allowed to expand to 45.0 liters, what must the new temperature…

A: Ans

Q: A 25.0 L container at 23.0 °C contains 60.54 g Ne and 167.6 g Kr. What is the total pressure of the…

A:

Q: Under constant-pressure conditions a sample of hydrogen gas initially at 88°C (361K) and 9600 mL is…

A: Given : Initial volume of gas = 9600 mL Initial temperature of gas = 88 oC And final volume of gas =…

Q: A rigid gas cylinder contains 370 grams of oxygen gas at 30 atm and 25oC. What must be the final…

A: According to the our policy we should solve one question, if any subparts present then first three…

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: To what temperature must a balloon initially at 25 degrees Celsius and 2.00 L, be heated in order to…

A: Initial temperature T1 =25°C                            T1 = (25+273)K…

Q: 3. A 0.334 g sample of an unknown halogen gas occupies 109 mL at 398 K and 1.41 atm. What is the…

A: The ideal gas equation describes the relationship between different parameters of a gas. These…

Q: A free diver takes a 1.50L breath of air at a temp of 25 degrees celsius and pressure of 1.02 atm.…

A: The relationship between pressure, volume and temperature is shown below,

Q: What pressure (in atm) is exerted by a column of toluene (C7H8) 87.0 m high? The density of toluene…

A:

Q: A sample of oxygen, at 24°C, occupies a volume of 5.90 x 104 milliliters (mL) at 1.57 atm pressur…

A:

Q: A sample of gas in a balloon has an initial temperature of 5 ∘C and a volume of 1600 L . If the…

A: Given : Initial temperature = 5oC=5 + 273= 278K Final temperature = 59oC= 59 + 273= 302K Initial…

Q: If the temperature of 179.6 L of a gas at 64.9 C falls by 7.2 C, what is the new volume of the gas…

A: We know, at constant pressure; V1 / T1 = V2 / T2 where, V1 = initial volume T1 = initial temperature…

Q: If a balloon filled with air has a volume of 15.0 L at 5 degree celcius, what is its volume at 75…

A: We can use the formula V1/T1=V2/T2 where, V is volume, T is temperature  Given: V1= 15 L T1 = 5…

Q: If volume =2.03 L at 24.0 Degrees Celsius then volume = 3.01L at what temperature? ( pressure, n=…

A: NOTE : Assuming the substance we are talking about in this question is a gas as nothing is mentioned…

Q: Consider the following chemical reaction: C(s)+H2O(g)→CO(g)+H2(g) How many liters of hydrogen gas…

A: C + H2O .....> CO + H2 Moles of C = 1.10 mol  P of H2 = 1.0atm T = 316K

Q: If a tank contains 453 mol of propane, what volume of propane gas could be supplied at 22°C and…

A: Given the pressure of propane gas is --- 14.22psi  Temperature T=22oC The number of moles of propane…

Q: A sample of helium gas has a volume of 3.24 L at 25°C. What volume will it occupy at 286K if the…

A:

Q: A sample of gas at 912.5 mmHg and 24.66 °C is heated to a temperature of 143.67 °C. What is the new…

A: Consider the given information is as follows; Initial pressure P1=912.5 mmHg =912.5 × 0.133322 kPa =…

Q: Consider the following chemical reaction: 2H₂O(1)→ 2H₂(g) + O2(g) What mass of H₂O is required to…

A:

Q: At what temperature in degrees Celsius will 5.00g cl^2 gas exerts a pressure of 2.55atm and occupies…

A: T = 3034.8 0C

Q: A sample of helium gas has a volume of 3.24 L at 25°C. What volume will it occupy at 286 K if the…

A: Given,  Initial volume of He gas (say V1) = 3.24 L  Initial temperature (say T1) = 25 0C Final…

Q: What pressure was exerted on the inflated beach ball for it to change its volume from 25.0-liters at…

A:

Q: A 14.0 g sample of N2 (g) occupies what volume at 0 degrees C and 1.00 atm?

A: First the given grams of N2 is converted into moles.

Q: A sample of oxygen gas has a volume of 3.24 L at 31°C. What volume will it occupy at 147°F if the…

A:

Q: A sample of gas at 1015.7 mmHg, occupying a volume of 14.66 L, and at a temperature of 21.31 °C is…

A: Given: Initial Pressure, P1=1015.7 mmHg [1 atm = 760 mmHg] P1=1.336 atm The initial volume, V1=…

Q: What is the volume of a 189.5g sample of NO2if the pressure is 1.127atm and the temperature of the…

A:

Q: What pressure is exerted by 129.5g of CH4 in a 0.3900 L steel container at 215.7k?

A: If a gas behaves like an ideal gas, it will follow the ideal gas equation. It gives the relationship…

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.