Oxygen gas speeds up the rate at which food is spoiled. To improve the shelf-life of foods, food manufacturers use several methods to remove oxygen from inside the food packaging. In one method, an enzyme is added that catalyzes a reaction between oxygen and glucose which is often present in foods. (glucose + oxygen + water --> gluconic acid + hydrogen peroxide). Why this method may NOT be suitable to improve the shelf-life of all foods?

Q: Here is the overall reaction in an automobile air bag: 20NAN (s) + 6S1O, (s) + 4KNO,(s) → 32N,(g) +…

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Q: Hydrogen has two naturally occurring isotopes, 1H and 2H.Chlorine also has two naturally occurring…

A: Since we know that the rate of effusion of gases is inversely proportional to the root of molecular…

Q: Which example best demonstrates effusion? air slowly escaping from a pinhole in a tire the aroma of…

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A: We know that volume of 1 mole gas at STP is 22.4 L. Mole= volume ÷22.4 Use this formula to get mole…

Q: Here is the overall reaction in an automobile air bag 20NAN, (0) +6SIO,(0)+4AKNO, 6)32N,(e) +…

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Q: A sample of gas contains 0.1900 mol of HCl(g) and 9.500×10-2 mol of Br2(g) and occupies a volume of…

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Q: 7. One balloon is filled with He gas at 25°C. Another balloon is filled with CO, gas at 25°C. The…

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Q: Molar volume (V/n) can be calculated and measured for any set of conditions. At 30.0 °C and 1.00 atm…

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Q: 1. Given the reaction:        2 Al (s) +  6 HCl (aq)    -->   2 AlCl3 (aq) +   3 H2 (g) A strip…

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Q: Ammonia gas has a molar mass of approximately 17 grams per mole. At 290K and 1.2 atm, a sample of…

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Q: The reaction 2KCIO3 (s) 2KCI (s) + 302 (g) represents a common laboratory procedure for producing…

A: Given: Pressure = 760 torr = 1.0 atm Temperature = 0 oC = 273.15 K

Q: A sample of magnesium metal reacts completely with an excess of hydrocholoric acid: Mg(s) + 2…

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Q: Nitrogen forms a surprising number of compounds with oxygen. A number of these, often given the…

A: ICE table is shown below,

Q: What volume of propane C3H6(g) reacts with 100cm3 of oxygen used in the complete combustion…

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Q: The atmosphere contains about 5.2×10^15 t of air. What mass in metric tons of carbon dioxide is in…

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Q: The reaction of 50 mL of N₂ gas with 150 mL of H₂ gas to form ammonia via the equation: N₂ (g) +…

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Q: please solve with proper steps

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

Q: Assume methane is introduced to a reaction vessel that has a volume of 1.0L with a pressure of…

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Q: 1.) This reaction occurs in large test tube at 32.0oC: 2 Al (s)  + 3 H2SO4(aq) ---> 6 H2 (g)  +…

A: The balanced reaction taking place is given as, => 2 Al (s) + 3 H2SO4 (aq) -------> 6 H2 (g) +…

Q: Explain the following using the concepts of Gas Laws: What does a scuba diver need to know about…

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Q: Carbon monoxide gas reacts with hydrogen gas to form methanol via the following reaction: CO(g)2H2…

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Q: Oxygen gas can be generated by heating KClO3 in the presence of a catalyst.KClO3  -----> KCl + O2…

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Q: Consider the following gas phase reaction. 4HCl(g) + O2(g) -> 2Cl2(g) + 2H2O(g) What mass of…

A: We have to calculate the mass of Cl2 produced from 400 ml of HCl measured at STP.

Q: Hydrogen peroxide (H2O2) decomposes in the presence of a catalyst to form water and oxygen gas.  The…

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Q: On a sheet of paper, write the word or phrase from the Word Word Bank Bank that completes each…

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Q: What weight of magnesium is needed to react with HCl to produce 67.2 of hydrogen gas at STP? Mg +…

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Q: What is the total pressure for a mixture of hydrogen, nitrogen, and ammonia? O PN2 + PH2 / PNH3 O…

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Q: Calculate the volume of the sample after the reaction takes place, assuming that

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Q: Determine the total pressure in the flask when 1.02 atm of O2 is added to a 1.95 L flask containing…

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Q: A student is taking General Chemistry Lab this semester. In a experiment, instead of reacting Mg…

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Q: In a 1.000 L sealed container at STP you decompose 100g sodium Bicarbonate if you ignore the volume…

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Q: ) 286 L of hydrogen gas at STP reacts with excess chorine gas. What is the maximum amount of gas…

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Q: Given the following reaction of Ca(s) in HCl(aq):  Ca(s)    +     2 HCl(aq)     -->     CaCl2(aq)…

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Q: Which of the following is not a postulate of the kinetic molecular theory? The forces of attraction…

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Q: The generic reaction occurs in a closed container:A(g) + 2 B(g) -----> 2 C(g) A reaction mixture…

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Q: The partial pressure of oxygen in inhaled air is PO2=159 mmHg and its partial pressure in exhaled…

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Q: Before calculating any values, predict on which mountain the balloon will have the largest volume.…

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Q: 1. When 12.0 gram of a mixture of Mg(CIO3)2 (s) and Mg(CIO)2 (s) is heated to 700 °C in a 10.0 L…

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Q: A 5.80 g sample of lead nitrate Pb(NO3)2 molar mass = 331 g/mol is heated in an evacuated cylinder…

A: Given reaction,     2Pb(NO3)2 --> 2PbO + 4NO2 + O2

Q: Some N, gas is mixed with some O, gas, and the sketch below shows a representative sample of the…

A: So we will determine the mole fraction and partial pressure for Nitrogen and oxygen gas.

Q: Nitrogen gas (N2) reacts with hydrogen gas (H2) to form ammonia gas (NH3). You have nitrogen and…

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Q: When exposed to UV light, phosgene (COCL2) decomposes according to the reaction COCL2(g)->CO(g) +…

A: The balanced reaction given is, => COCl2 (g) → CO (g) + Cl2 (g)

Q: Calculate the number of grams of magnesium required to perform an experiment involving the reaction…

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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.