A 0.3177  g sample of a compound of carbon, nitrogen and hydrogen is burned completely and  326 mL of CO2 is formed at 672 torr and 27° C.   In another experiment, a 297.0 mg sample of the compound was found to contain 154 mg of nitrogen.  In a final experiment a gaseous sample had a density of 5.52 g/L at 25 oC and 760 mmHg.   Find the molecular formula of the compound.

Q: 138. You have two rigid gas cylinders. Gas cylinder A has a volume of 48.2 L and contains N2(g) at…

A: Given:Volume of gas (VN2) = 48.2 L.Pressure of gas (PN2) = 8.35 atm.Temperature of gas (TN2) = 25℃ =…

Q: + 6 HCl(aq) 2 AlCl3 (aq) + 3H₂(g) gas produced by this reaction is typically collected via water…

A: According to the question, hydrogen gas is produced by the reaction between metallic aluminum and…

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

A:

Q: The following combustion reaction is done with 0.225 g of ethylene, C2H4. C2H4 (g)  + 3 O2 (g)  → 2…

A: Number of moles of ethene and carbondioxide can be calculated as follows:

Q: A 2.1 mole sample of solid CO2 (dry ice) is placed inside a sealed balloon and allowed to fully…

A:

Q: What volume in liters of fluorine gas is needed to form 455 L of sulfur hexafluoride gas if the…

A: We have to calculate the  required fluorine gas volume.

Q: A 0.4366 g sample of a compound of carbon, oxygen and hydrogen is burned completely and 453 mL of…

A: Given: mass of compound = 0.4366 g

Q: Small rocket engines, such as model rockets, contain KCIO3 to provide oxygen for the combustion…

A:

Q: The combustion of octane, C, H, proceeds according to the reaetion shown. 18 2 C,H18() + 25 O,(g) →…

A:

Q: How many liters of fluorine gas are needed to form 683 L of sulfur hexafluoride gas if the following…

A:

Q: Determine the volume of O2 (at STP) needed to form 1.455 L of SO2 at STP. (Hint: it is not necessary…

A: Given equation 4 FeS2(s) + 11 O2(g) → 2 Fe2O3(s) + 8 SO2(g)

Q: A mixture of KCl and KClO3 weighing 1.92 grams was heated; the dry O2 generated occupied 148 mL at…

A: Mass of mixture = 1.92 g Volume of O2(V) = 148 mL = 0.148L STP is standard temperature and pressure.…

Q: Gaseous ammonia and hydrogen chloride react to form solid ammonium chloride, NH3 (g) + HCI (g) →…

A: Calculate the excess moles of reactant,         Moles of NH3 = 3.00 g17.031 g/mol = 0.1761 molMoles…

Q: Oxygen gas reacts with powdered aluminum according to the reaction: Al(s) + O₂(g) → Al₂O3(s) What…

A:

Q: How many liters of fluorine gas are needed to form 353 L of sulfur hexafluoride gas if the following…

A: The ideal gas equation is PV = nRT  P = pressure V = volume  n = moles of gas = mass/molar mass R =…

Q: The noble metal oxide, Rhodium (III) oxide, decomposes to form oxygen. If 651.4 mL of oxygen is…

A: Given that:Volume of oxygen, V = 651.4 mL = 0.6514 LTemperature, T = 34.6oC = 34.6 + 273.15 = 307.75…

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

A:

Q: What volume in liters of fluorine gas is needed to form 867 L of sulfur hexafluoride gas if the…

A:

Q: When 15.0 g of fluorite (CaF2) reacts with excess sulfuric acid, hydrogen fluoride gas is collected…

A: . The reaction is as follows CaF2(s) +H2SO4(excess) →2HF(g) +CaSO4(s) Moles of calcium fluorite…

Q: What volume of water vapor would be produced from the combustion of 595.39 grams of propane (C3H8)…

A:

Q: produce 25.0L of O2(g) at 1.55atm and 28.5oC?  2KClO3(s) 2KCl(s) + 3O2

A: The question is based on the concept of Reaction Stoichiometry.   We have to  calculate the mass of…

Q: Consider the following reaction:      2 NaHCO3(s)  -->  Na2CO3(s)  +  CO2(g)  +  H2O(l) How many…

A: A numerical problem based on mole concept, which is to be accomplished.

Q: At 50.6 oC and 2.05 atm, what mass of H2 will react with excess N2 to produce 18.3 L NH3? (R =…

A: Temperature in kelvin -

Q: How many liters of fluorine gas are needed to form 329 L of sulfur hexafluoride gas if the following…

A: This question is based on the simple stoichiometric calculations s shown in the next step.

Q: Sulfuric acid is essential to dozens of important industries from steelmaking to plastics and…

A:

Q: The combustion of octane, Cg H18, proceeds according to the reaction shown. 2 C8H₁8 (1) + 25 O₂(g) →…

A: An ideal gas follows a theoretical concept in which there is no interparticle interaction between…

Q: Silver oxide decomposes completely at temperatures in excess of 300 oC to produce metallic silver…

A:

Q: Automobile air bags inflate during a crash or sudden stop by the rapid generation of nitrogen gas…

A:

Q: Consider the following reaction: 2H2O(l) -> 2H2(g) + O2(g)…

A:

Q: Automobile air bags inflate during a crash or sudden stop by the rapid generation of nitrogen gas…

A:

Q: What volume in liters of fluorine gas is needed to form 621 L of sulfur hexafluoride gas if the…

A:

Q: How many liters of fluorine gas are needed to form 541 L of sulfur hexafluoride gas if the following…

A: According to the balanced equation, it is observed that three moles of F2 reacts with one mole of…

Q: What volume in liters of fluorine gas is needed to form 559 L of sulfur hexafluoride gas if the…

A: We are given the reaction  S(s) + 3F₂(g) → SF₆ (g)  Volume of SF6 produced = 559 L  = V Pressure =…

Q: Ammonium nitrite decomposes when heated to form nitrogen gas. When a sample of NH4NO2 is decomposed…

A:

Q: A helium-filled balloon of the type used in long-distance flying contains 490,000 ft³ (1.4 x 107 L)…

A:

Q: Consider the following reaction of the commercial production of SO3 using sulfur dioxide and oxygen:…

A: We have given the balance chemical equation as follow                                       2SO2(g )…

Q: Oxygen gas can be prepared by heating potassium chlorate according to the following equation:…

A: The given reaction is shown below.

Q: Consider the following reaction: 2SO2(g) + O2(g)-> 2SO3(g) What is the theoretical yield of SO3 ? If…

A: Answer:The reactant that is exhausted first in the chemical reaction and decides the yield of…

Q: Consider the reaction:  Zn(s) + 2 HCl(aq) --> ZnCl2(aq) + H2(g)   The hydrogen gas is to be…

A: Welcome to bartleby !  We have to calculate volume of hydrogen

Q: A 2.00 L steeel vessel contains 4.30 atm of nitrogen and 7.60 atm of hydrogen at 225 degrees C. What…

A:

Q: What volume in liters of fluorine gas is needed to form 973 L of sulfur hexafluoride gas if the…

A: The objective of the question is to find out the volume of fluorine gas required to form a certain…

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.