The product gas, O2, is collected over water at a temperature of 20 °C and a pressure of 748 mm Hg. If the wet O2 gas formed occupies a volume of 5.90 L, the number of grams of O2 formed is __________ g.

Q: Sodium azide, NaN3, decomposes according to the following equation and produces N2 gas that inflates…

A: Given, 2NaN3(s) ➝ 2Na(s) + 3N2(g) mass (in grams) of sodium azide (NaN3) needed = ? molar mass of…

Q: Gaseous iodine pentafluoride, IF₅, can be prepared by the reaction of solid iodine and gaseous…

A:

Q: Brass is an alloy of Cu and Zn. Zinc dissolves in HCl liberating H 2(g), according to the equation…

A: Given,  Volume = 8.650 L  Temperature = 24.52 °C = (24.52+273) K                         = 297.52 K…

Q: What pressure (in torr) of carbon dioxide gas can be produced by the combustion of 1.00 g of benzene…

A: As from the balanced chemical equation, the mole ratio of C6H6 to CO2 is 2 : 12, thus it is 1 : 6.…

Q: Iron reacts with hydrochloric acid to produce iron (II) chloride and hydrogen gas : Fe(s)+2 HCl(aq)…

A: The combined relation between gas laws is known as the ideal gas law or the gas equation. The…

Q: When excess water is added to a mixture of citric acid and sodium bicarbonate present in a bath…

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Q: 2.5 L of octane gas, C8H18, is combusted with 20.5 L of oxygen gas and ignited. What volume of…

A: Volume of octane gas = 2.5 L Volume of oxygen gas = 20.5 L Pressure = 0.995 atm Temperature = 22.0oC…

Q: Gaseous iodine pentafluoride, IF₅, can be prepared by the reaction of solid iodine and gaseous…

A: Given mass of iodine = 11 g Molar mass of iodine = 253.81 g/mol Number of moles of iodine =…

Q: sodium azide, the explosive compound in automotive air bags, decomposes according to the following…

A: Calculate the mass of sodium azide required to provide the nitrogen needed to inflate a 70.0 L bag…

Q: Zinc metal reacts with excess hydrochloric acid to produce hydrogen gas according to the following…

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Q: 11. Synthesis gas, which is used in the production of ammonia and methanol, among other uses, is…

A: Since PV = nRT  where P = pressure in atm V = volume in L  n = moles  R =  0.0821  T = temperature…

Q: Hydrogen gas (a potential future fuel) can be formed by the re- action of methane with water…

A: Given: The volume of methane gas is 25.5L The pressure of methane gas is 732torr (0.96316atm) The…

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

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: Carbonic acid can form water and carbon dioxide, when heated.  What volume of carbon dioxide is…

A: One mole of a substance is that which contains 6.022 x 1023 molecules or atoms of that substance.…

Q: Sodium azide is used in air bags for automobiles. The gas produced from the decomposition of sodium…

A: Given: The volume (V) of nitrogen gas is 45 L The pressure (P) of nitrogen gas is 1.0 atm The…

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

A: The partial pressure of O2, PO2, and the number of moles of O2 is calculated as shown below.…

Q: 75. Automobile air bags inflate following a serious impact. The im- pact triggers the chemical…

A: Air bags are used for the safety of cars. Air bags consists of sodium azide and an oxidizer. The gas…

Q: f 81.4 grams of carbonic acid are sealed in a 2.00 L soda bottle at room temperature (298.15 K) and…

A: Mass of carbonic acid = 81.4 g Temperature (T) = 298.15 K Volume (V)= 2.00L Gas constant (R) = 0.082…

Q: During a collision, automobile air bags are inflated by the nitrogen gas formed by the explosive…

A: Ideal gas equation is the equation that gives the relationship between the pressure, temperature,…

Q: CaCO3 decomposes at 1200 degrees Celsius to form CO2 gas and CaO. If 25 L of CO2 are collected at…

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Q: the number of grams of H2

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Q: 2. Explosives are effective if they produce a large number of gaseous molecules as products.…

A:

Q: Gaseous iodine pentafluoride, IF₅, can be prepared by the reaction of solid iodine and gaseous…

A: Percentage of IF5 = 20.06 %

Q: Iron reacts with hydrochloric acid to produce iron(II) chloride and hydrogen gas: Fe(s) + 2 HCI(aq)…

A: Given data, The balanced chemical equation is, The mass of iron = 2.2 g Volume (V) = 10 L…

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: Sometimes in lab we collect the gas formed by a chemical reaction over water (see sketch at right).…

A:

Q: component of gasoline. When octane burns in excess oxygen, water is produced as well as carbon…

A: We know that volume of gas at stp is 22.4L. Mole= volume÷22.4 Use mole -mole realtionship to get…

Q: ron reacts with hydrochloric acid to produce iron (II) chloride and hydrogen gas:…

A: Given Fe(s)+2HCl(aq)-->FeCl2(aq)+H2 (g) Amount of iron = 2.2 g Temperature = 25°C…

Q: of H2 gas , Collected over water at the atmospheric pressure of 751mm Hg and a temperature of 21.0…

A: The three gas laws  namely  Boyles law , charles law  and avagadros law  are combined   to obtain…

Q: 1. What could be the pressure of a gas in mmHg if the volume is 5.80 L from 1.00 atm and will be…

A: Gas laws are useful to determine final P, V and T.

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

A: The volume occupied by O2 gas is 7.50 L. The total vapor pressure over water is 754 mmHg.

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

A: Since you have asked multiple question we will solve the first one for you. If you want answer to a…

Q: The explosive, PETN, pentaerythritol tetranitrate, is one of the most powerful explosives known. It…

A: The given balanced reaction is : C(CH2ONO2)4(s)  →  2CO(g)  +  4H2O(g)  +  3CO2(g)  +  2N2(g) Number…

Q: 50. In the lab, students generated and collected hydrogen according to the following equation: Mg(s)…

A: (a) Given, 42.9 g Mg metal The balanced equation for the reaction of Mg with HCl is,…

Q: Sodium metal reacts with water to produce hydrogen gas according to the following equation: 2Na(s) +…

A: Temperature=25 °CPressure=758 mm Hg1 atm=760 mm HgSo, pressure (in atm)=0.997 atm Volume=7.27…

Q: Sodium metal reacts with water to produce hydrogen gas according to the following equation: 2Na(s)…

A: Concept is based on ideal gas equation:

Q: The complete combustion of methane, CH4, can be represented by the equation         CH4 (g) + 2 O2…

A:

Q: Oxygen gas can be prepared by heating potassium chlorate according to the following equation: 2KC10,…

A: we have to calculate the number of moles of KClO3

Q: Ethane, C,Hs, burns in air according to the equation 2 C2H6(g) + 7 02(g) →4 CO2(s) + 6 H20(g) How…

A: Given Volume of ethane = 6L As, 1 mole of substance contains 22.4 L of volume.

Q: The complete combustion of methane, CH4, can be represented by the equation CH4 (g) + 2 O2 (g) --->…

A:

Q: Two bulbs are connected by a stopcock.  The large bulb, with a volume of 6.00 L, contains nitric…

A: From the ideal gas equation we can calculate the no of moles reacted and the partial pressure of…

Q: 7.75 g of SO2 is added, at a constant temp and volume, to 5.87 L of SO2 at 705 mmHg and 26.5 degrees…

A: The pressure of a gas in a container is due to collision of molecules of gas with the container.the…

Q: When copper metal is added to nitric acid, the following reaction takes place Cu (s) + 4 HNO3 (aq) →…

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Q: Natural gas is a mixture of hydrocarbons, primarily methane (CH4) and ethane (C2H6). A typical…

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Q: Iron (III) oxide mined from the earth must be initially converted into the liquid metal before then…

A: Number of moles is equal to the ratio of mass to molar mass. Number of moles=MassMolar mass Ideal…

Q: Iron reacts with hydrochloric acid to produce iron (II) chloride and hydrogen gas: Fe(s) + 2 HCl(aq)…

A: Iron is a transition metal which is electropositive in nature. Metals generally have tendency to…

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

A:

Q: 420 grams of N2 and 64.0 grams of H2 gasses are kept at 300°C in these vessels separated by a valve.…

A: Given mass of nitrogen gas = 420 g Molar mass of nitrogen gas = 28 g/mol Number of moles of nitrogen…

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.