O2  collected over water at 40°C and total pressure of 745 mmHg, what volume of gas is collected for the complete reaction of 25 g of NiO?  The vapor pressure of water is 55.40 mmHg. The Reaction:  2 NiO (s) ⟶ 2 Ni (s) + O2 (g)

Q: When solid calcium carbonate is reacted with aqueous hydrochloric acid, the products of the reaction…

A: Answer: Volume of CO2 will be calculated using ideal gas equation which is shown below: PV=nRTV=nRTP…

Q: Enter your answer in the provided box. A piece of sodium metal reacts completely with water as…

A: Given reaction is,  2Na(s) + 2H2O(l) --> 2NaOH(aq) + H2(g)  Given data,  Volume of hydrogen gas =…

Q: 2.25 grams of zinc metal is reacted with 54.3 mL of a 1.22 M HCl solution. If 1.52 L of hydrogen gas…

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Q: Each sketch below shows a flask with some gas and a pool of mercury in it. The gas is at a pressure…

A: It is given that initial pressure of the gas is 0.5 atm in both the tubes, given one tube is an open…

Q: Consider the reaction:  2 NiO(s)     ⟶     2 Ni(s)     +     O2(g) If O2 is collected over water…

A: We have to calculate the volume of gas collected for the reaction

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Q: When solid calcium carbonate is reacted with aqueous hydrochloric acid, the products of the reaction…

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Q: Gases produced by a chemical reaction can easily be collected over water. To determine the pressure…

A: Provided total pressure (PT)=725.0mmHg Let partial pressure of H2= PH2   (say) At 25°C the partial…

Q: 2NO(g) + O2(g) →2NO2(g)   Initially NO and O2 are separated in two different chambers connected by a…

A: First Calculate mole of each reactant by ideal gas equation . Then calculate limiting reagent so…

Q: The volume of a sample of pure HCl gas was 289 mL at 24 ° C and 137 mmHg. It was completely…

A: The number of moles of HCl is calculated as,

Q: When solid calcium carbonate is reacted with aqueous hydrochloric acid, the products of the reaction…

A: Given,          Vapor pressure of water = 23.8 mmHg          Total vapor pressure = 911 mmHg…

Q: 73. Oxygen gas, generated by the reaction 2KCI03(s) → 2KCI(s) + 3O2(g), is collected over water at…

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Q: 1. Calculate the number of grams of sodium used in the reaction. (The vap 7 0°C =0035? atm )

A:

Q: 8. For the reaction 2H₂O(1) + 2e → H₂(g) + 2OH(aq), calculate the volume of "dry" hydrogen gas…

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Q: A piece of magnesium reacts with an aqueous solution of HCl to produce H2 gas. The hydrogen gas is…

A: The ideal gas equation is shown below: PV = nRT Where; P = pressure of the gas V= volume of the gas…

Q: A piece of sodium metal reacts completely with water as follows: 2Na(s) + 2H,O(1) → 2N2OH(aq) +…

A:

Q: When solid calcium carbonate is reacted with aqueous hydrochloric acid, the products of the reaction…

A: The reaction is given as, CaCO3 + 2 HCl →CaCl2 + H2O + CO2

Q: pressure of the water at that temperature must be subtracted from the total pressure. 1) Consider…

A: The question is based on the concept of Dalton's law of partial pressure. it  states that total…

Q: Consider the reaction between 50.0 mL of liquid methanol (CH3OH; d=0.850g/mol) and 22.8 L of O2 at…

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Q: Oxygen gas is generated by the reaction: 2KClO3(s) → 2KCl(s) + 3O2(g) and collected over water at…

A: Given, 2KClO3(s) → 2KCl(s) + 3O2(g) Total pressure (PTotal) = 760 torr Vapour pressure of water…

Q: What volume of CO₂ gas at 1.000 atm and 800 K could be produced by the reaction of 45.0 g of CaCO,…

A: n = m/MWm = mass in gramsn = number of molesMW : molar mass in g/molnCaCO3  =  m/MW        = 45 g…

Q: Each sketch below shows a flask with some gas and a pool of mercury in it. The gas is at a pressure…

A: It discusses the mercury levels in the J-tube experiment and provides information about…

Q: When solid calcium carbonate is reacted with aqueous hydrochloric acid, the products of the reaction…

A: Given that -  Temperature = 25°C = 298 K  Mass of calcium carbonate = 25.1 g  Total pressure = 911.0…

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…

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A: Given Vapor pressure of water= 19.8mmHg Atmospheric pressure=  768.6 Temperature= 22°C = 273+22 =…

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Q: If 75.0 grams of carbonic acid are sealed in a 2.00 L soda bottle at room temperature (298.15 K) and…

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Q: A piece of sodium metal reacts completely with water as follows: 2Na(s) + 2H,0(D→ 2NAOH(aq) + H2(g)…

A: Recall the given equation as follows        2Nas + 2H2Ol →2NaOHaq + H2g Again recall the ideal gas…

Q: A sample of gas contains 0.1900 mol of CO(g) and 0.1900 mol of NO(g) and occupies a volume of 12.8…

A:

Q: A piece of magnesium reacts with an aqueous solution of HCl to produce H2 gas. The hydrogen gas is…

A: Answer: When hydrogen gas is collected over HCl, solution it would also be containing water vapor in…

Q: A piece of sodium (Na) metal reacts completely with water to produce NaOH(aq) and H₂(g). The H₂(g)…

A: 2Na(s) + 2H2O(l) ---> 2NaOH(aq) + H2(g) Normal atmospheric pressure = 1 atm  water vapor pressure…

Q: When solid calcium carbonate is reacted with aqueous hydrochloric acid, the products of the reaction…

A: We have, reaction of calcium carbonate with hydrochloric acid to produce calcium chloride, water and…

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Q: 1. In an experiment similar to the one that we did the following reaction was studied: 2 KClO3(s)…

A: Given, Oxygen was collected in an inverted graduated cylinder. The balanced chemical equation of the…

Q: How many moles re? (The vapor

A: Total pressure = 755 mm Hg Vapor pressure of water =23 mm Hg Partial pressure of O2 (PO2) = Total…

Q: Gaseous CO exerts pressure of 45.6 mmHg in a 56.0 L tank at 22°C was released to a room with a…

A: Gaseous CO in tankPressure = 45.6 mmHgVolume = 56.0 LTemperature = Temperature is converted to…

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.