The density of an ideal gas at STP is found to be 1.94 g/L . What is its molar mass? molar mass:                              g/mo

Q: if the density of an ideal gas at STP is found to be 1.96 g/L, what is the molar mass?

A:

Q: What is the density of the gas in g/L at STP if the molar mass of the gas is 129 g/mol?

A: The molar mass of the gas is = 129 g/mol The density of the gas in g/L at STP is =?

Q: To prevent the presence of air, noble gases are placed over highly reactive chemicals to act as…

A:

Q: 1. When a certain acid and a certain base are mixed together, a reaction occurs that produces a gas…

A:

Q: A 1.00 L sample of dry gas at 16 °C and 744 mmHg contains 0.520 g N₂. What is the partial pressure…

A: Given that, Volume of the dry gas is 1.00 L. Temperature = 160C Total pressure = 744 mm Hg Mass of…

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: The flame produced by the burner of a gas (propane) grill is a pale blue color when enough air mixes…

A:

Q: A 0.6333 g sample of a metal carbonate was reacted with hydrochloric acid. The carbon dioxide gas…

A: We have given that the CO2 is collected at temperature of 26.0°C T = 26 + 273.15 = 299.15 K…

Q: A flask contains 1000 ml of a pure diatomic gas 646 mm Hg and 20 degrees mass of gas is 1.13 g. What…

A:

Q: A 3.95 g sample of an unknown gas at 69 °C and 1.00 atm is stored in a 1.75 L flask. What is the…

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

Q: A gaseous compound has a density of 1.69 g/L at 25.2 °C and 1.45 atm. What is the molar mass of the…

A:

Q: When gaseous F2 and solid Iz are heated to high temperatures, the Iz sublimes and gaseous iodine…

A: Charle's law: P1T1=P2T2

Q: A 3.35 g sample of an unknown gas at 31 °C and 1.00 atm is stored in a 1.85 L flask. What is the…

A: Given data, mass of the sample of an unknown gas=3.35 g Temperature(T)=31℃=(31+273)K =304 K…

Q: Ancient Romans built often out of bricks and mortar. A key ingredient in their mortar was quicklime…

A: Here, we have to write the balanced chemical equation for the decomposition of solid calcium…

Q: 1.If you are asked to calculate the volume of Carbon dioxide gas at 25oC and 802 torr that could be…

A: We have given the Carbon dioxide gas Temperature =T= 25°C  Pressure = P=  802 torr  V = volume of…

Q: A chemistry student places 5.35 grams of aluminum metal into phosphoric acid.  The reaction gives…

A: Given: The mass of aluminium metal taken = 5.35 grams The percent yield = 78.5% We have to calculate…

Q: Consider the generic reaction: 2 A(g) + B(g)》2 C(g). If a flask initially contains 1.0 atm of A and…

A: Reaction proceeds to completion implies that almost all of the reactants are converted into product.…

Q: The __________ assumes that gas molecules are very small and that they exert no. force on each…

A: Ideal gas :-  A gas which obeys all the gas laws under all conditions of temperature and pressure is…

Q: Considering the ideal gas law PV = n RT, what is P inversely proportional to? 1. only T 2. only n 3.…

A: The ideal gas equation -> PV = nRT P=nRT/V

Q: Iodomethane is a common liquid used in the laboratory. It vaporizes readily. If the pressure of…

A:

Q: A gaseous compound has a density of 1.36 g/L at 23.5 °C and 1.50 atm. What is the molar mass of the…

A: Given Density = 1.36 g/L Temperature = 23.5 oC = ( 273 + 23.5 ) = 296.5 K Pressure = 1.50 atm

Q: A 1.05 g1.05 g sample of an unknown gas at 65 ∘C65 ∘C and 1.00 atm1.00 atm is stored in a 1.75 L1.75…

A: Pressure  = 1 atm Volume  = 1.75 L Temperature = 65° C = 338.15 K R = 0.082 L atm mol-1 K-1  Molar…

Q: A 1.25 g sample of an unknown gas at 81 °C and 1.00 atm is stored in a 1.05 L flask. What is the…

A: Given, mass of unknown gas sample m = 1.25 g            temperature T = 81 °C = 81+ 273 K = 354 K…

Q: A 2.35 g sample of an unknown gas at 51 °C and 1.05 atm is stored in a 1.35 L flask. What is the…

A: Given, mass of a unknown gas sample (m) = 2.35 g Temperature (T) = 51°C = (51 + 273.15) K = 324.15 K…

Q: Three 1.00 L flasks at 25.0 °C and 1013 kPa pressure contain: CH4 (flask A), CO2 (flask B) and NH3…

A: The volume, temperature and pressure of three flasks (flask A, flask B and flask C) is 1.00 L,…

Q: As part of the rock analysis, a student added hydrochloric acid to a rock sample and observed a…

A:

Q: What is the molar volume of an ideal gas at 1.00atm and 0.00deg celsius?

A: Since its asking about molar volume. Hence calculating volume of 1 mole will give us the ans. Given…

Q: A gas occupies 45.0 L at 2.00 atm pressure and 27°C. Calculate its volume at STP.

A:

Q: The flame produced by the burner of a gas (propane) grill is a pale blue color when enough air mixes…

A:

Q: A 1.05 g1.05 g sample of an unknown gas at 65 ∘C65 ∘C and 1.00 atm1.00 atm is stored in a 1.75 L1.75…

A: The following information given in the question - (1) Mass of the gas = 1.05 g (2) Temperature of…

Q: Consider three 1.0 L flasks labeled A, B, and C filled with the gases NO, NO2, and N2O,…

A: There are there states of matter. Solid, liquid and gas. Gas is less dense than solid and liquid.

Q: A 3.45 g sample of an unknown gas at 43 °C and 1.10 atm is stored in a 1.85 L flask. What is the…

A: Given datas ; m = 3.45 g T = 43°C =( 43 + 273 ) K = 316 K P = 1.10 atm  V = 1.85 L Density = mass /…

Q: At 25 °C, a gas occupies a volume of 1.20 L under 0.295 atm of pressure. At what temperature will…

A: According to ideal gas equationThe number of moles can be calculated as

Q: In the reaction,   MgCO3(s)⟶MgO(s)+CO2(g)MgCO3(s)⟶MgO(s)+CO2(g)   what mass of magnesium…

A: Stoichiometry of reaction.

Q: A 3.25 g sample of an unknown gas at 37 °C and 1.00 atm is stored in a 1.85 L flask. What is the…

A: Mass of sample = 3.25 g Volume = 1.85 L Temperature = 37 ◦C or 310.15 K Pressure = 1 atm

Q: 87.23 grams of a gas occupies 45 L at 600 mm Hg and 25 C. What is the molar mass of the gas ?

A:

Q: Consider four 1.0 L flasks of gases at STP, Flask A contains NO gas, Flask B contains NH3 gas, Flask…

A:

Q: A 3.75 L sample of gas from a chemical plant is collected and analyzed st 25 degrees celisus. It is…

A: The number of moles for a given chemical species refers to the ratio of mass of the species to that…

Q: The molecular weight of a gas that has a density of 6.75 g/L at STP is __________ g/mol.

A: At stp pressure is one atm

Q: A 2.65 g sample of an unknown gas at 21 °C and 1.10 atm is stored in a 1.05 L flask. What is the…

A:

Q: both questions please

A: 1)The balance chemical equation as follows:

Q: What is the density of O2 gas in g/L at STP ?

A: Using the formula of density and ideal gas equation we can find density of O2 at STP.

Q: A student adds 3.00 g of dry ice (solid CO2) to an empty balloon. What will be the volume of the…

A: Given : Mass of dry ice i.e CO2 = 3.00 g And the condition is STP i.e standard temperature of 273 K…

Q: (a) What conditions are represented by the abbreviationSTP? (b) What is the molar volume of an ideal…

A: (a) STP is standard temperature and pressure. The standard temperature is 273 K (00C) and the…

Q: A substance containing only carbon and hydrogen is analyzed and found to contain 85.7% carbon by…

A: Density of compound at STP = 1.87 g/Li.e. 1 L of compound weighs 1.87 g1 mol of compound at STP =…

Q: A 1.05 g sample of an unknown gas at 61 "C and 1.05 atm is stored in a 2.55 L flask. What is the…

A: Mass per unit volume is known as density. S.I unit of density is g/cm3 or kg/m3. Other units of…

Q: An unknown gas at 79.1 ∘C and 1.10 atm has a molar mass of 16.04 g/mol. Assuming ideal behavior,…

A: Ideal gas equation. PV=nRT. P is pressure. V is volume. n is number of moles. R is gas constant. T…

Q: A 3.05 g sample of an unknown gas at 21 °C and 1.10 atm is stored in a 1.95 L flask. What is the…

A:

Q: The total pressure exerted by a mixture of He, Ne, and Ar gases is 2.00 atm. What is the partial…

A: Dalton's law ( also called Dalton's law of partial pressure) that  in a mixture of non reacting…

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.