Dinitrogen monoxide can be prepared by heating ammonium nitrate, which decomposes into dinitrogen monoxide gas and water according to the following equation. N,O(g) NH,NO,(s) + A -> 2H,0(1) What mass of ammonium nitrate should be decomposed in order to produce 250. mL of gas measured at STP?

Q: 15. Consider the following reaction. 2 C,H,N,O.(1) → 4 CO (g) + 2 H,0(g) + 2 Ne(g) How many grams of…

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Q: oxygen can be generated in the laboratory by heating potassium chlorate until it it decomposes. what…

A: The potassium chlorate is heated in laboratory to generate oxygen.   2KClO3 (s)→2KCl (s) + 3O2 (g)…

Q: A mixture of solid calcium oxide, CaO, and solid barium oxide, BaO, weighing 5.107 g is added to…

A: The objective of the question is to-a) Calculate the moles of carbon dioxide consumed by the…

Q: A sample of unknown gas has a mass of 2.85 g and occupies 750 mL at 760 mm Hg and 100 °C. What is…

A: Ideal gases have negligible volume in compare to the volume of the container and molecules of ideal…

Q: 1) A student is preforming the baking soda (NaHCO3) with vinegar (CH COOH) volcano experiment. If…

A: For STP. P = 1 atmT = 273 KV = 5.00 Lmolar mass of NaHCO3 = 84.01 g/molR = 0.08206 Latm/molK

Q: Boron trifluoride gas is used in the manufacture of computer chips. Given that 1.505 g of the gas…

A: STP is defined as the standard temperature, pressure condition at which the temperature of the gas…

Q: Which of the following statements are true? Which are false? Why is each true or false? (c) A…

A: A substance has three basic physical property- volume, pressure and temperature

Q: What is the mass (in g) of 273 mL of sulfur trioxide measured at STP?

A: Given: at STP  Temperature = 273 K pressure = 1 atm volume = 273 mL = 0.273 L molar mass of SO3 =…

Q: 10. LiOH is used to condition air in spacecraft by absorbing the carbon dioxide exhaled by…

A: According to the balanced equation, 2 moles LiOH can absorb 1 mole CO2.  We can convert the mass of…

Q: What is the mass (in g) of 486 mL of sulfur trioxide measured at STP?

A: The conditions at STP are temperature of 273.15 K (0°C or 32°F) and pressure of 105 Pascal or 1 bar

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

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Q: Chlorofluorocarbons (CFC's) are gases that were formerly widely used in acrosols and refrigerators…

A: Given: Mass of CFC = 2.50 g. Temperature = 22 oC Pressure = 1.02 atm. And volume of flask = 500 mL =…

Q: 10.546 g of a sample containing a mixture of NaHCO3 and Ca(HCO3)2 is mixed with an excess of HCI to…

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Q: Q7. A gas mixture that has the following composition in percent by volume: 10.2% CO2, 21.0% CO,…

A: Let the total composition of the mixture be 100 mL. The volume of CO2, CO, H2, CH4 and N2 can now be…

Q: In the fermentation of glucose (wine making), 760 ml of CO2 gas was produced at 65O mmHg. What is…

A: At STP  Pressure= 760 mmHg and Expression used for calculation is P1V1= P2V2

Q: A gas with a mass of 95.14g occupies 48.8L at 659mmHg and 25.3°C. What is its molecular weight? Use…

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Q: Use the References to access important values if needed for this question. Sodium metal reacts with…

A: The pressure of the wet hydrogen gas is the sum of the pressure of the dry hydrogen gas and the…

Q: Use both the ideal gas law and van der Waals’ equa- tion to calculate the temperature of water vapor…

A: Van der Waals equation is used for real gases.  This equation relates the temperature, pressure,…

Q: Calculate the density of chlorine gas in g/L, at STP.

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Q: oxygen can be generated in the lab by heating potassium chlorate until it decomposes. whst mass of…

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Q: 3 H2 (g) + N2 (g) --> 2 NH3 (g)   A 3.22 L vessel containing the hydrogen at 21.1 oC and 6.750 atm…

A: To determine the theoretical yield, we have to know the moles of reactants present initially. To get…

Q: Part A What volume of O2 at 722 mmHg and 21 °Cis required to synthesize 22.5 mol of NO? Express your…

A: Given that: pressure, P = 722 mmHg = 722760= 0.95 atm temperature, T = 21 oC = 21 + 273 = 294 K…

Q: What is the density of CO2 at 655 mmHg and 55oC?

A: The objective of the question is to calculate the density of CO2 at a given pressure and…

Q: gas mixture contains O 2 , N 2 , and Ar at partial pressures of 125, 175, and 225 mmHg,…

A: Interpretation: The partial pressure in millimeters of mercury for carbon dioxide gas when added to…

Q: Magnesium metal reacts with hydrochloric acid to produce magnesium chloride and hydrogen gas. What…

A: Given: Volume of Hydrogen Gas = 0.25 L Pressure = 1.0 atm Temperature= 0.0 oC To calculate: Mass of…

Q: Nitrogen gas can be obtained by decomposing ammonium nitrate at high temperatures.  The nitrogen gas…

A: We are given Pambient=745 mm Hg Pwater =16.48 mm Hg we know Pambient=Pnitrogen+Pwater⇒Pnitrogen…

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

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Q: At 535 mm Hg and 58.4 °C, a sample of carbon monoxide gas occupies a volume of 0.415 L. The gas is…

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Q: 25 g of hydrogen chloride have been treated with 50 g of manganese dioxide, obtaining manganese (II)…

A: Volume of chlorine obtained is: 4.31 LExplanation:

Q: What would be the molar mass of a gas for which 2.43 x 10-2g occupies a volume of 7.68 mL at STP?

A: Given that, volume of gas at STP, V = 7.68 mL = 0.00768 L Mass of gas at STP, m = 2.43×10-2 g Molar…

Q: Urea ((NH2)2CO(s)) was the first organic compound to be synthesized in a laboratory. Today it is…

A: The objective of the question is to find out the volume of CO2(g) required to react with 10 L of…

Q: .A hydrocarbon gas weighing 0.232 g covers a volume of 102 mL at 23 OC and 749 mmHg pressure. What…

A: From ideal gas equation - PV = nRT PV = wRT/M where - P = pressure of the gas = 749 mmHg = 749/760…

Q: A mixture of cyclopropane gas (C3H6) and Oxygen (O2) in a 1.00 to 4.00 mole ratio is used as an…

A: Given that the mole ratio of cyclopropane and oxygen in the mixture is 1:4 respectively. The partial…

Q: What is the mass of hydrogen gas (RMM=2) that occupies volume of 35 L at STP?

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Q: Calculate the mass in grams of hydrogen chloride, HCI produced when 21 L of molecular hydrogen, H2…

A: Answer:- Firstly using the relationship between volume and moles at STP, moles of H2 and Cl2 are…

Q: 37. What volume of H, gas, measured at 27°C and 700. torr, can be obtained by reacting 5.00 g of…

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Q: What is the mass (in g) of 227 mL of sulfur trioxide measured at STP?

A: According to ideal gas law, PV = nRT  where P = pressure  V = volume  n = moles  R = gas constant  T…

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: Assume you used 0.024 moles of oxygen from a reaction mixture and were able to collect 431 mL of gas…

A: Number of moles of O2 = 0.024 mole

Q: for this question. Sodium metal reacts with water to produce hydrogen gas according to the following…

A: The reaction is given as, 2 Na(s) + 2 H2O(l) → 2NaOH(aq) + H2(g) From the balanced chemical…

Q: What mass of aluminum is required to produce 10.9 liters of hydrogen gas, at STP

A: Interpretation -  To determine the mass of aluminum is required to produce 10.9 liters of hydrogen…

Q: 5. You are given 1.56 g of a mixture of KClO3 and KCl. When the mixture is heated the oxygen gas…

A: In the given question we have to calculate the percentage of KClO3 in the mixture,  first of all, we…

Q: 1. A compound has an empirical formula of CH2 O and a molecular mass of 60 amu. What is the…

A: Two questions one regarding molecular formula and second regarding volume of a gas at STP are to be…

Q: For an ideal gas, calculate the following quantities.(a) The pressure of the gas if 0.135 mol…

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Q: AT IS THE VOLUME OF A SAMPLE OF CO2(g) that has a mass of 25.0 g at STP

A: Mole of C02= Mass of Substance/ Molecular Mass Mole of C02 = 25/44 =0.568 mol

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.