CO2 (carbon dioxide), Ne (neon), N2 (nitrogen), SiH4 (silane), CH4 (methane), and H2S (hydrogen sulfide) are all held at the same standard temperature and standard pressure. Which three gases will have the closest densities and would sink in air (air's density is 1.28 g/L)? O Hydrogen sulfide O Neon O Methane Carbon dioxide Silane O Nitrogen

Q: A cylinder is filled with  10.0L  of gas and a piston is put into it. The initial pressure of the…

A: We have to calculate the final pressure of gas

Q: Magnesium metal reacts with hydrochloric acid to producing hydrogen gas according co the following…

A:

Q: CO2 (carbon dioxide), Ne (neon), N2 (nitrogen), SiH4 (silane), CH4 (methane), and H2S (hydrogen…

A: The relationship between density and molar mass of the gas is given by the formula d = PM/RT  P =…

Q: These two gases are mixed in a steel vessel. What can you say about the relationship between each…

A: a)partial presuure- I=II because partial pressure depend on mole fraction here both have same mole…

Q: Chemical analysis of an unknown compound shows that it contains 64.9%C, 13.5%H, and 21.6% O by mass.…

A: Given  Multipart questions

Q: A sample of gas contains 0.1600 mol of HBr(g) and 0.08000 mol of Cl₂ (g) and occupies a volume of…

A: Information

Q: the presence of MnO2(s) catalyst, KClO3(s) completely decomposes into O2(g) and KCl(s). However,…

A:

Q: Use the References to access important valties if hee for this quest A sample of gas contains 0.1301…

A:

Q: A 10.0 L flask of helium gas is stored at a temperature of 22.0 °C a A) How many moles of helium gas…

A: An ideal gas is a theoretical gas composed of many randomly moving point particles that are not…

Q: You start with an equimolar mixture of the gases SO₂ and O₂ in a container. The SO₂ and O₂ react to…

A: Ideal gas equation is given by PV=nRT where P is the pressure, V is the volume, n is the number of…

Q: Q1. A hydrocarbon (M=224.253 g/mol) found to contain 64.27% carbon and 7.19% hydrogen by mass, the…

A: The question is  based on the concept of combustion analysis. first , we calculate molecular formula…

Q: A mixture used by divers for breathing purposes contains 34.3% helium (He), 51.7% nitrogen (N2) and…

A:

Q: .A sample of carbon dioxide occupies a volume of 6.70 liters at 105 kPa pressure. What pressure…

A: Given data, V1=6.70 LV2=3 LP1=105 kPa To calculate the new pressure.

Q: A gas sample in a balloon contains 4.0 moles of gas at a particular pressure, volume, and…

A: Given,Initial number of moles is = 4 molesVolume is degreasing to half of the original amount.

Q: CO2 (carbon dioxide), Ne (neon), N2 (nitrogen), SiH4 (silane), CH4 (methane), and H2S (hydrogen…

A: We know density = PM/RT, if the density is greater than air then it will be sink in the air. Here…

Q: A piece of dry ice (solid carbon dioxide) with a mass of 25.0 g sublimes (converts from solid to…

A: Mass of carbon dioxide = 25.0 g

Q: Not all pollution is due to human activity. Natural sources, including volcanoes, also contribute to…

A: Given information: Mass of water vapor = 12.0 g Mass of SO2 = 7.5 g Mass of CO2 = 8.0 g Volume =…

Q: You have a 3.00-liter container filled with N₂ at 25°C and 1.75 atm pressure connected to a…

A: density of gas = total mass of gas / total volume Since mass = moles X molecular mass molar mass of…

Q: A student obtained the following data from this experiment. Calculate weight of the gas vapor in…

A: Mass of flask and foil cap = 89.617 gMass of flask, foil cap, and condensed vapor = 91.458 gFlask…

Q: What mass of helium gas is needed to pressurize a 92.0 L tank to 209 atm at 18 °C? What mass of…

A:

Q: Sometimes in lab we collect the gas formed by a chemical reaction over water (see sketch at right).…

A:

Q: A box contains equal amounts of helium, argon, and krypton (all gases) at 25 °C. Using complete…

A: At a particular temperature, all gases have same average kinetic energy. It is the kinetic theory of…

Q: A 6.00 L tank at 7.28 °C is filled with 9.73 g of sulfur tetrafluoride gas and 2.46 g of carbon…

A:

Q: HC2H3O2 (aq) + NaOH (aq) ----> NaC2H3O2 (aq) + H2O(l) Trial  Vi (mL) Vf (mL) 1 2.25 15.76 2     3…

A:

Q: Calculate the volume (in L to 2 sig figs) of 15.735 g CO2 gas if it is pressurized to 2.0 atm at…

A: Given  Mass of Co2   = 15.735 gram  Pressure        = 2 atm  Temperature  = 0℃…

Q: What pressure is exerted by 8.178 g of CO2 gas in a 4.387 L container at 48.3 °C? Note the following…

A: Consider the given information is as follows; Determination of molar mass of is as follows;

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: Use the van der Waal's Equation to calculate the pressure exerted by 100.0 grams of nitrous oxide…

A: Given,mass of nitrous oxide ( N2O ) = 100.0 gvolume of container = 2.75 Ltemperature = 28.0 oCa =…

Q: How many moles of hydrogen sulfide are required to react completely with 33.1 L of oxygen gas…

A: Stoichiometry in balanced chemical reaction defines the ratio of the reactants and products in which…

Q: Consider the following balanced equation. 4 FeS2 (s) + 11 O2 (g) → 2 Fe2O3 (s) + 8…

A:

Q: A balloon is filled with a gas to a certain volume at a certain pressure at 43.6°C. If the pressure…

A: The ideal gas equation relates the temperature, pressure, volume and the moles of a substance as:…

Q: Use Avogadro's law to calculate volume. A sample of gas contains 0.180 mol of N₂(g) and 0.360 mol of…

A: According to  Avogadro's law, under the same conditions of temperature and pressure, equal volumes…

Q: Sometimes in lab we collect the gas formed by a chemical reaction over water (see sketch at right).…

A:

Q: Sometimes in lab we collect the gas formed by a chemical reaction over water (see sketch at right).…

A:

Q: A gas cylinder that contains argon has an internal volume of 43.8 L. A pressure gauge attached to…

A: Volume = 43.8 L  Pressure = 1890 psi      { 14.7 psi = 1 atm }  Temperature = 22.3 °C   { 0°C =…

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

A:

Q: As part of the production of vinyl chloride — which is used to make polyvinyl chloride (PVC) plastic…

A: Ideal gas equation will help us to find the temperature at which pressure become 3.6 atm.…

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.