4) Given the following reaction: 2NO (g) + 02 (g) → 2NO2 (g) How many liters of gaseous oxygen are needed to produce 6.50 L of gaseous nitrogen dioxide, if both gases are peing measured at STP?

Q: An empty flask has a mass of 47.392 g and 47.816 g when filled with acetone vapor at 100.oC and 745…

A:

Q: What is the mass (in grams) of a CO2 gas sample that occupies 5.71 L at STP

A:

Q: How many grams of phosphine (PH3) can form when 37.5 g of phosphorus and 83.0 L of hydrogen gas…

A: Given details, The balanced chemical equation, P4(s) + 6H2(g) → 4PH3(g) At STP, Pressure = 101325 Pa…

Q: How many moles of Br2 are in seven cubic meters (7.00 m3) of Br2 gas at STP?

A:

Q: If you pack a bag of potato chips for a snack on a plane ride, the bag appears to have infl ated…

A:

Q: In the reaction, 2KClO3(s)⟶2KCl(s)+3O2(g) what mass of potassium chlorate, KClO3, would be required…

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Q: What is the mass (in grams) of 10.00 L of propane vapor (C₃H₈) at STP?

A: Given information,     Volume of propane vapor is 10.00 L

Q: How many molecules of sulfur trioxide would react with 68.9 liters of water at STP?

A: Applying concept of mole at STP.

Q: How many grams of phosphine (PH3) can form when 37.5 g of phosphorus and 83.0 L of hydrogen gas…

A: In a balanced chemical reaction, the stoichiometric coefficients of the reactants and products…

Q: In CACO3 + HCI → CaCl2 + H2O+ CO2 , how many liters of carbon dioxide gas, measured at STP, can be…

A: Given balanced equation is as follows. CaCO3+2HCl→CaCl2+H2O+CO2 That means 1 mole CaCO3 will produce…

Q: Dilute aqueous hydrogen peroxide is used as a bleaching agent and for disinfecting surfaces and…

A: Given: Volume of solution= 0.100L To find: Mass of hydrogen peroxide

Q: Consider the reaction for the synthesis of nitric acid:3 NO2( g) + H2O(l) → 2 HNO3(aq) + NO( g)(a)…

A: Given, Volume of NO2 = 12.8 L Amount of Water = 14.9 g Actual yield of HNO3 = 14.8 g Formula Used,…

Q: How many grams of Al were reacted with excess HCI if 4.34 L of hydrogen gas were collected at STP in…

A:

Q: A mixture of 25.0 g of NO and an excess of O2 reacts according to the balanced equation ___NO(g) +…

A: The balanced chemical equation is as follows:

Q: What is the density of methane gas, CH4 at STP?

A: STP means standard temperature and pressure  Temperature is 0°C or 273 K  Pressure is 1 atm

Q: What volume will be occupied by 8.00 g of oxygen, O2, at STP?

A: The moles of Oxygen is calculated as follows,

Q: In the reaction, MgCO3(s)⟶MgO(s)+CO2(g) how many liters of carbon dioxide, CO2, measured at STP,…

A: The number of moles of MgCO3(s) (n) is calculated as shown below where w is the given mass and M is…

Q: In the reaction, 2 KClO3(s) ----->2 KCl (s) + 3 O2 (g) how many liters of oxygen measured at STP,…

A:

Q: In the reaction   2HgO(s)⟶2Hg(s)+O2(g) how many liters of oxygen gas, O2, measured at STP are…

A: In the reaction   2HgO(s)⟶2Hg(s)+O2(g) how many liters of oxygen gas, O2, measured at STP are…

Q: How many moles of Br2 are in two cubic meters (2.00 m3) of Br2 gas at STP?

A: By ideal gas equation PV=NRT SO

Q: Burning one mole of propane in a gas grill adds 132 g of carbon dioxide (CO 2) to the atmosphere.…

A: At STP, 1 mole of a gas occupy 22.4 L of volume.

Q: How many liters of oxygen is needed to react with 42.0 L of hydrogen at STP?

A: Given :- volume of H2 = 42.0 L  To calculate :- volume of O2 (in L)

Q: Consider the following reaction for the combustion of octane, C8H18: What volume of oxygen gas at…

A: Combustion of octane is, Calculate the number of moles of octane:

Q: Unit 11 Q#8 Methanol, CH,OH, burns in oxygen to form carbon dioxide and water. What volume of oxygen…

A:

Q: How many grams of phosphine (PH3) can form when 12.9 g of phosphorus and 75.3 L of hydrogen gas…

A: Reaction's stoichiometry plays an important role for determining the amount of product.

Q: 12. What is the volume (liters) of 64 g of O, at STP?

A: Given is mass of O2 = 64 g Standard values, Molar mass of O2  = 31.998 g/mol

Q: What is the mass (in grams) of 6.00 L of propane vapor (C:Hs) at STP?

A: To Solve this problem we will use the relationship that  1 mol of any gas at STP = 22.4 L of that…

Q: Which of the following gases would occupy the greatest volume at STP? propane, C3H8 carbon dioxide,…

A: The correct option is option d.

Q: What volume, in liters, does 27.946 g of oxygen gas occupy at STP?

A: Given in the question, Mass of oxygen = 27.946 gm Conditions = STP As we know that 1 mole of any…

Q: How many grams of Al were reacted with excess HCI if 2.76 L of hydrogen gas were collected at STP in…

A: The balanced reaction taking place is given as, => 2 Al (s) + 6 HCl (aq) → 2 AlCl3 (aq) + 3 H2…

Q: Consider the following reaction showing the decomposition of potassium chlorate, a common industrial…

A:

Q: 2. Acetylene is formed by the reaction of water with calcium carbide, according to the following…

A: CaC2(s) + 2 H2O (l) → Ca(OH)2 (aq) + C2H2 (g) From the Balanced chemical equation we get that ; 1…

Q: From the balanced chemical equation: 2C6H6(l) + 15O2(g)  12CO2(g) + 6H2O(l) How much CO2 (in L) is…

A: At S. T. P, volume of 1 mol of gas is = 22.4 L

Q: What is the mass (in grams) of 11.00 L of propane vapor (C₃H₈) at STP?

A: Given that : Volume(V) = 11.0 L At STP, Temperature(T) = 273 K Pressure(P) = 1atm Mass of C3H8 = ?

Q: 12. Calculate the molar mass of a gaseous substance if 0.158 g of the gas occupies 31.7 mL at STP.

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

Q: what is the density in (g/L) of H2 a 15 ℃ and a 1020 mmHg?

A: Given, pressure =1020 mm Hg =1.34 atmtemperature =15°C =(15+273.15)K =288.15 Kgas constant =0.0821…

Q: How many grams of Al were reacted with excess HCI if 3.12 L of hydrogen gas were collected at STP in…

A:

Q: How many molecules of CO2 will occupy 22.4 l at STP ?

A: Given: The volume of CO2 at  STP=22.4 L To calculate: The number of molecules present in 22.4 L at…

Q: Dinitrogen monoxide can be prepared by heating ammonium nitrate, which decomposes into dinitrogen…

A:

Q: What is the mass (in grams) of 22.00 L of propane vapor (C3H3) at STP?

A:

Q: Iron oxide, FeO2, is produced by the reaction Fe + O2 ® FeO2 (87.8 g/mol). How many grams of FeO2…

A:

Q: What is the volume, in milliliters, that 5.70 g of O2 occupies at STP?

A: Apply formula A= (w/Vml)×22400

Q: Methane burns in oxygen to produce CO2 and H20: 7. CO2 (g) +2 H20 () CH4 (g) + 202 (g) If 11.2 L of…

A: Volume of Oxygen can be determined using the Avogadro’s law,

Q: 2.50 g of hydrogen is reacted with 30.0 L of carbon monoxide at STP to produce CH3OH. What is the…

A:

Q: KClO3 decomposes to form KCl and O2. What mass of KClO3 is needed to form 5.00 L of oxygen at STP?

A: The balanced reaction taking place will be  2 KClO3 -----> 2 KCl + 3 O2  Hence from the above…

Q: What is the limiting reactant if 2.2 g of Mg is reacted with 4.5 L of oxygen at STP?

A:

Q: CH 8. What is the density of SO3 at STP? 9. If the density of Freon at STP is 5.40g/L, what is the…

A: 8.  density = molar massmolar volume Molar mass of SO3 is 32 + (16x3) = 80g at STP each 1 mole of…

Q: In the reaction,   2HgO(s)⟶2Hg(s)+O2(g)2HgO(s)⟶2Hg(s)+O2(g)   how many liters of oxygen, O2,…

A: In this question, we have to find out the correct answer of given problem by the help of the…

Q: How many moles of CO2 are in a 5.6 L sample of CO2 at STP?

A: Given:- Volume= 5.6L  We know at STP,  Temperature = 273K  Pressure = 1atm  R = Universal Gas…

Q: In CaCO3 + HCI → CaCl2 + H2O+ CO2 , how many liters of carbon dioxide gas, measured at STP,can be…

A: 1 mole = 6.022×1023 (Avogadro's number ) The mass of one mole of atoms is called atomic mass  For…

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.