As 1g of the radioactive element radium decays over 1 year, it produces 1.16 x 10^18 alpha particles (helium nuclei). Each alpha particle becomes an atom of helium gas. What is the pressure in pascal of the helium gas produced if it occupies a volume of 125mL at a temperature of 25 degrees C.

Q: In what volume must 12.5 moles of argon be contained so that at 20.0°C it would exert a pressure of…

A:

Q: The volume of a sample of hydrogen gas was decreased from 11.97 L to 5.26 L at constant temperature.…

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

Q: 2. A 0.136 g sample of an unknown metal (X) reacted with excess hydrochloric acid according to the…

A:

Q: A) A sample of ideal gas at room temperature occupies a volume of 40.0 L at a pressure of 542 torr .…

A: Boyle’ law states that at a particular temperature and number of moles, the pressure of a gas is…

Q: A 0.477 mol sample of O2 gas has a volume of 12.4 L at a certain temperature and pressure. If all…

A:

Q: The following equation represents the partial combustion of methane, CH 2CH(g) + 30z(g) 2C0(g) +…

A:

Q: 1.10 g of Carbon dioxide were introduced into a 1.00 L flask which contained some pure oxygen (O2)…

A: Given : mass of CO2 introduced = 1.10 g Since molar mass of CO2 = 44 g/mol Hence moles of CO2…

Q: Ammonia, NH3, burns in oxygen gas according to the reaction: 4NH3(g) + 5O2(g) → 4NO(g) + 6H2O(l).…

A: Since oxygen gas is present in excess, ammonia is the limiting reagent in the given reaction. A…

Q: In a flask, there are two gases (gas 1 and gas 2). There is 2.34 L of gas 1, with 3.2 bars of…

A: Given a flask contains gas 1 and gas 2 2.34 L of gas 1.  Partial pressure of gas 1 = 3.2 bars 6.19 L…

Q: As 1 g of the radioactive element radium decays over 1 year, it produces 1.16 × 1018 alpha particles…

A: Interpretation - To determine the pressure of the helium gas ( in pascal ) when 1 g of the…

Q: A sample of argon gas occupies 105 mL at 0.871 atm. If the volume of the gas is increased to 352 mL…

A: Given information is as follows; Initial volume V1= 105 mLFinal volume V2= 352 mLInitial Pressure…

Q: Hydrogen gas, oxygen gas, and water vapor are collected in eudiometer. The eudiometer contains…

A: a) Moles of H2(9) =0.00206 g2 gmol=0.00103 molb) Moles of O2(9) =0.0811 g32 gmol= 0.00253 molc)…

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: 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: A sample of ideal gas at room temperature occupies a volume of 15.0 L at a pressure of 752 torr. If…

A: Given, Note: 760 torr = 1 atm Initially: Pressure of a gas (P1) = 752 torr = 0.989 atm Volume of a…

Q: The volume of a sample of hydrogen gas was decreased from 12.01 L to 5.30 L at constant temperature.…

A:

Q: Hydrogen gas, oxygen gas, and water vapor are collected in eudiometer. The eudiometer contains…

A:

Q: The volume of a sample of hydrogen gas was decreased from 12.62 L to 5.91 L at constant temperature.…

A: According to Boyle’s law,

Q: If 34.0 L of Cl2O gas at 25.0 Celsius at 760.0 mm Hg decomposes to chlorine gas and oxygen gas. What…

A: The effect of pressure and temperature is measured by Boyle’s law and Charles's law respectively.…

Q: The Haber Process synthesizes ammonia at elevated temperatures and pressures. Suppose you combine…

A: To solve this problem we will use Stoichiometry of balanced chemical equation .  First we will find…

Q: A sample of helium at a pressure of 747 torr and in a volume of 2.09 L was heated from 22.5 to 74.6…

A: Given, P1=747 torrV1=2.09 LT1=22.5°C = 22.5+273 K = 295.5 KP2=?(final pressure)V2=2.81 LT2=74.6°C =…

Q: Hydrogen gas, oxygen gas, and water vapor are collected in eudiometer. The eudiometer contains…

A:

Q: The Haber Process synthesizes ammonia at elevated temperatures and pressures. Suppose you combine…

A:

Q: The volume of a sample of hydrogen gas was decreased from 12.36 L to 5.65 L at constant temperature.…

A: Given: The initial volume, of hydrogen gas (V1) = 12.36 L. The final volume, of hydrogen gas (V2) =…

Q: The International Space Station is equipped with a Vika Oxygen Generator which uses the following…

A: The given reaction is:Volume (V) = Pressure (P) = 0.21 atmTemperature (T) = 24.5oCGas constant (R) =…

Q: The volume of a sample of hydrogen gas was decreased from 11.09 L to 4.38 L at constant temperature.…

A: Boyle's law This law states that the absolute pressure exerted by a given mass of an ideal gas is…

Q: Hydrogen gas, oxygen gas, and water vapor are collected in eudiometer. The eudiometer contains of…

A: moles of h2=1.0218X10-3 mol XH2= mol gas/total mol XH2=0.2325

Q: Hydrogen chloride gas and oxygen react to form water vapor and chlorine gas. What volume of chlorine…

A: Given that,Hydrogen chloride gas reacts with oxygen gas to give chlorine gas and water.

Q: The Haber Process synthesizes ammonia at elevated temperatures and pressures. Suppose you combine…

A: At STP the volume of one mole of gas is 22.4 L. Then, at STP, 22.4L of N2 contains 1 mole of N2 .…

Q: The Haber Process synthesizes ammonia at elevated temperatures and pressures. Suppose you combine…

A: Given, Volume of N2 at STP = 1580 LVolume of H2 at STP = 4240 LWe know that, at STP 1 mole of a gas…

Q: The Haber Process synthesizes ammonia at elevated temperatures and pressures. Suppose you combine…

A: N₂ (g) + 3 H₂ (g) → 2 NH₃ (g)  According to the above reaction 1 mole of Nitrogen will react with 3…

Q: The Haber Process synthesizes ammonia at elevated temperatures and pressures. Suppose you combine…

A:

Q: what was its initial pressure of gas in mm Hg?

A:

Q: A sample of ideal gas at room temperature occupies a volume of 26.0 L at a pressure of 832 torr . If…

A: Given: Initial volume of gas = 26.0 L Initial pressure of gas = 832 torr. And final pressure of gas…

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.