At 1273K and 10.mmHg, the density of a certain element in the gaseous state is 2.9*10-3g/L. The element is:

Q: Calculate the volume of O2(g) in Liters that is required to convert 4.19 of S(s) to SO3(g) f the…

A: Given data,Moles of S=4.19molTemperature=418oC=418+273.15=691.15KPressure=5.78atm

Q: 25. 600 mL of a gas at 345 kPa will occupy a volume of (A) 1200 mL (B) 300 mL (C) 690 mL (D) 255 mL…

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Q: 6. 1.703 g Al reacts with 1.95 mL of H,SO, at 30.0°C and 611.1 kPa. Calculate the mass of Al,(SO,J,…

A: Given,  Mass of Al = 1.703 g  Volume of H2SO3 (g) = V = 1.95 mL  Temperature = T = 30.0 0C  Pressure…

Q: Potassium chlorate decomposes when heated, giving oxy- gen and potassium chloride: 2 KCIO3(s) → 2…

A: Given information: Mass =87.6 g Pressure = 1.04 atm Temperature = 13.2 ℃

Q: Calculate the density (in g/L) of nitrogen at 798.0 mmHg and 14.741°C.

A: Given data, Pressure = 798.0 mm Hg Temperature = 14.741 degree C. = 287.891K R = 62.363 mm…

Q: In an experiment reported in the scientific literature, malecockroaches were made to run at…

A: The ideal gas expression is shown below: PV = nRT where, P = pressure of the gas V = volume of the…

Q: Lithium hydroxide, LIOH, is used in spacecraft to recondition the air by absorbing the carbon…

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Q: What is the experimental molar mass (that is, calculated from the data given and not taken from the…

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Q: A car engine it is powered by the burning of octane (C8H18) with oxygen (O2). The combustion…

A: Given that the combustion reaction of octane (C8H18) with oxygen (O2) form carbon dioxide (CO2) and…

Q: Tin(IV) chloride is used as an external coating on glass to toughen glass containers. It is prepared…

A: Solution AIM: The mass tin and volume of chlorine gas should be calculated.. Concept introduction:.…

Q: How many grams of phosphorus (P) are needed to completely consume 88.9 L of chlorine gas according…

A: Given, Pressure (P) = 1 atm Volume (V) = 88.9 L Temperature (T) = 25 degree celsius = ( 25+273) K =…

Q: 9. a. A bicycle tire holds 1.50 L of air at 506.6 kPa and 20.0 °C. How many moles of air is this?

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Q: Oxygen can convert to ozone by the following equation: O2 --> O3 a) Given a 10.6 L sample containing…

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Q: At 120 oC, the volume of a sample of nitrogen is 1.07 L. What will the volume be at 205 oC, assuming…

A: Using Charles law of Gas

Q: For the reaction 14/6 C ⟶ 14/7 N + ?, if 100.0 g of carbon reacts, what volume of nitrogen gas (N2)…

A: The equation connecting the temperature, pressure, volume, and number of moles of an ideal gas is…

Q: Magnesium can be used as a “getter” in evacuated enclosuresto react with the last traces of oxygen.…

A: The number of mole (n) of O2 is calculated as shown below where is PO2 is the partial pressure of…

Q: A 1.52-gram sample of iron (III) perchlorate was decomposed according to the reaction below,…

A: First the moles of oxygen gas produced in the reaction is determined using ideal gas equation. Then…

Q: What volume of oxygen gas is produced

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Q: 19. Vent pipes at solid-waste landfills often emit foul-smelling gases. A sample of such cmissions…

A: Ideal gas equation is PV = nRT PV = wMRT       [ moles(n) = mass (w)molar mass (M) ] PM = wVRT PM =…

Q: If a liter of argon gas (Ar) is compared to a liter of neon gas (Ne), both at 75°C and two…

A: The given question discusses the comparison of average velocity, kinetic energy, number of atoms of…

Q: The reaction between sulfamic acid and sodium nitrite produced 388mL of N2 collected over water at…

A: Given, Sodium nitrite + sulfamic acid ---> N2 + H2O Volume of N2 (V) = 388 mL Temperature (T) =…

Q: The density of nitrogen at 0.913 atm and 18°C is 1.07 g/L.  Explain how these data show that the…

A: Density of the gas(ρ) = PM RT Density of the gas(ρ) =1.07 g/L. P = pressure of gas = 0.913 atm M =…

Q: What is the experimental molar mass (that is, calculated from the data given and not taken from the…

A: moles is the ratio of mass of substance to molar mass of that substance.

Q: A sample of nitrogen gas collected at a pressure of 697 mm Hg and a temperature of 292 K has a mass…

A: here we will use ideal gas equation   P V = n R T  pressure = 697 mm Hg temperature = 292 K given…

Q: Q8. An unknown mass of MgcO3 is heated and 100cm pressure of 100 p te of air was 9e (R- calculate…

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Q: What is the experimental molar mass (that is, calculated from the data given and not taken from the…

A: We will first calculate the number of moles of hydrogen, then find moles of required and at last…

Q: 5. A 1.000 g sample of an alloy containing only Mg and Al was reacted with dilute sulfuric acid and…

A: Given that a sample contain only magnesium and aluminium which will react with dilute sulphuric…

Q: A 0.790 g sample of an unknown substance was vaporized in a 250. mL flask at 77.1 °C and 1.03 atm.…

A: Since the sample is finally in gaseous form. Hence the ideal gas law is applicable. According to…

Q: What is the experimental molar mass (that is, calculated from the data given and not taken from the…

A: Given: Mass of Mg reacting = 0.0228 g. Volume of H2 produced = 22.57 mL = 0.02257 L…

Q: Gaseous iodine pentaflouride ,IFs, can be prepared by reaction of solid iodine and gasesus flusrine.…

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Q: Consider the following reaction: 4Al (s) + 3O2 (g) → 2Al2O3 (s) It takes 2.00 L of pure oxygen gas…

A: Answer:- This question is answered by using the simple concept of stoichiometry which involves the…

Q: The gaseous product of the following reaction is collected over water at 25°C: 2KCIO3(s) - 2KC(s) +…

A: Solid KClO3 is dissociated into solid KCl and oxygen. The equation for the balanced chemical…

Q: If we have carbon-12 at 120OOK a) What is the proportion of carbon which speed is between 2000 and…

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Q: A sample of nitrogen gas collected at a pressure of 871 mm Hg and a temperature of 279 K has a mass…

A: To solve this problem we have to use ideal gas equation which is given as  PV = nRT  Where , P =…

Q: What is the experimental molar mass (that is, calculated from the data given and not taken from the…

A: We have to calculate the molar mass of Mg.

Q: Calculate the density of hydrogen gas (in g/L) at 899 mmHg and 42.4 °C. ______ g/L

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

Q: A 1.00L sample of cooking has taken from a cylinder was collected. It’s mass, measured at 27 c and…

A:

Q: A 1.75 g sample of magnesium and iron is added to dilute hydrochloric acid, producing 1.1 L of…

A: Mass of the sample = 1.75 gvolume of H2 gas produced = 1.1 L at these conditions, T = 28.5oC = 28.5…

Q: What is the experimental molar mass (that is, calculated from the data given and not taken from the…

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Q: The decomposition of 30.354 g of potassium chlorate yields solid potassium chloride and oxygen gas…

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Q: How many grams of solid ammonium sulfate (132.1 g/mol) can be produced when 0.500L of gaseous…

A: We are given the following balanced chemical reaction: 2NH3(g)  +  H2SO4(aq) ----------->…

Q: Calculate the density (in g/L) of nitrogen at 737.0 mmHg and 31.518°C.

A: Given :  P = 737.0 mmHg = (737.0 mmHg * 1 atm / 760 mmHg) = 0.9697 atm T = 31.518 deg C = (31.518 +…

Q: A 5.0-L sample of sulfur hexafluoride (SF6) is stored at a temperature of 250.0 K and a pressure of…

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Q: 1. Assume that 13.5 grams of solid aluminum react with HCl according to the following balanced…

A: Stoichiometrically we can find relation between the reactant and product

Q: 6. A meteorological balloon contains 250. L of He at 22°C and 740. mm Hg. If the volume of the…

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Q: 7. A sample of helium gas at 22.°C and 1.00 atm occupies a volume of 2.54 L. What volume will it…

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Q: In one demonstration of this reaction, 36.00 mL of H2 are collected over water at 25°C. Atmospheric…

A: Here given, Pressure (P) = 749 mmHg = (749/760) atm = 0.9855 atm Volume (V) = 36 mL = 0.036 L…

Q: What is the experimental molar mass (that is, calculated from the data given and not taken from the…

A: According to an ideal gas equation PV= nRT Where P= pressure of the gas, V= volume of the gas, n= no…

Q: A 22.5 mL sample of liquid ethanol (C₂H₅OH, density = 0.789 g/mL) was injected into a 10.0 L…

A: Given   The volume of ethanol is 22.5 mL. The density of ethanol is 0.789 g/mL. The volume of the…

Q: *25. n mmh The dimensions of a room are 2.5 m X 4.0 m × 5.0 m. As- sume that the air in the room is…

A: Given Dimensions of room  2.5m x 4.0m x 5.0m Volume of room , V = 2.5 x 4.0 x 5.0 = 50 m3…

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.