1) Consider the following reaction: Mg(s) + 2HCl(aq) → MgCl₂(aq) + H₂(g) The total pressure of gas collected over water is 710.0 mmHg and the temperature is 20.0°C What is the pressure of hydrogen gas formed in mmHg? Pressure = mmHg

Q: Calculate the volume of the sample ar constont

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Q: A sample of gas contains 0.1300 mol of C2H4(g) and 0.1300 mol of H2(g) and occupies a volume of 12.5…

A: Step 1:Balanced reaction isC2H4 (g) +  H2 (g)   →      C2H6 (g)(1 volume)   (1 volume)      (1…

Q: The barometric pressure in Carson City, Nevada (elevation 4802 ft or 1463 m), averages about 25.3…

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Q: 95.24 mL 24.0 °C Barometric pressure 739 mmHg Vapor pressure of water at 24.0 °C 22.5 mmHg Calculate…

A: Total Volume of H2 gas collected = 95.24 mL or ( 95.24 /1000 ) L Temperature, T = 24°C or 297 K…

Q: Gases evolved from the fermentation of glucose in your home brew. At 20.1 oC and 0.86 atm you…

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Q: Hydrogen gas generated by the following reaction is collected at 25.0 °C and fills a 10.0 L vessel…

A: Given :  2Al(s) + 6HCl(aq) → 2AlCl3(aq) + 3H2(g)  Volume of H2 = 10.0 L  Pressure = 1.00 atm…

Q: A sample of gas contains 0.1600 mol of HBr(g) and 0.08000 mol of Cl₂ (g) and occupies a volume of…

A: Information

Q: Consider the reaction between solid zinc and hydrochloric acid where hydrogen gas is collected over…

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Q: A helium-filled weather balloon has a volume of 584 L at 16.9°C and 755 mmHg. It is released and…

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Q: The following reaction is used to generate hydrogen gas in the laboratory. If 340.6 mL of gas is…

A: The volume of H2 = 340.6 mL = 0.3406 L Pressure of H2 gas collected = 748 mm Hg The pressure of H2…

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

Q: 4) Hydrogen peroxide decomposes spontaneously slowly to form water and oxygen gas according to the…

A: The balanced reaction taking place is given as, => 2 H2O2 (l) -----> 2 H2O (l) + O2 (g) Given…

Q: 2 A 10.5 mL sample of liquid ethanol (C,H,OH, density = 0.789 g/mL) was injected into a 10.0 L…

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Q: Calcium hydride (CaH 2) reacts with water to form hydrogen gas: CaH 2 (s) + 2H 20 (1)→ Ca(OH) 2 (aq)…

A: Given :

Q: A 2.02 g sample of aluminum reacts with excess of HCl(aq), and the liberated hydrogen gas is…

A: Given,  2Al(s) + 6 HCl(aq) -------> 2 AlCl3(aq) + 3 H2 (g)  The mass of Al = 2.02 g.   At…

Q: A student decomposed 6.900 g of solid ammonium nitrite (MW = 64.04 g/mol) at a temperature of 30.00…

A: Solid ammonium nitrite undergoes decomposition according to the problem. We are asked to write the…

Q: O2  collected over water at 40°C and total pressure of 745 mmHg, what volume of gas is collected for…

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Q: 13) HgO (s) –→ Hg (1) + O, (8)

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Q: A sample of gas contains 0.1600 mol of CH4(g) and 0.1600 mol of H2O(g) and occupies a volume of 18.4…

A: Given information: 0.1600 mol of CH4(g) and 0.1600 mol of H2O(g) volume of 18.4 L at reactant side…

Q: Consider the reaction: 2 NiO(s) 2 Ni(s) + O2(8) If O, is collected over water at 40.0 °C and a total…

A: As per the given data, Total pressure, P = 745 mm Hg The partial pressure of water = 55.3 mm Hg…

Q: A 2.20 L container at 53.6 °C contains 6.21 g of N2O3(g). The N2⁢O3 gas decomposes completely,…

A: Volume of container V = 2.20 L  Temperature T = 53.6 degree C = 53.6 + 273.15 K = 326.75 K  Mass of…

Q: - A sample of hydrogen gas is produced in a chemical reaction at 21.0 °C, where the hydrogen bubbles…

A: Since the wet gas has a pressure = 750.1 mm Hg and wet get has hydrogen gas and water vapours.

Q: A sample of gas contains 0.1700 mol of C₂H4(g) and 0.1700 mol of H₂O₂(g) and occupies a volume of…

A: Given :  Moles of C2H4 = 0.1700 mol  Moles of H2O2 = 0.1700 mol  Total volume = 11.5 L

Q: The hydrogen gas formed in a chemical reaction is collected over water at 30.0 ∘C∘C at a total…

A: Total pressure = 734 mmHg  partial pressure of water at 30C = 31.50 mmHg  Dalton’s law of partial…

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

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Q: A student weighs out 0.0422 g of magnesium metal. The magnesium metal is reacted with excess…

A: The balanced reaction of Mg with HCl is as follows: Mg(s)+2HCl(aq)→MgCl2(aq)+H2(g) Calculation of…

Q: 50 > A 0.775 g sample of a metal, M, reacts completely with sulfuric acid according to M(s) +…

A: According to the chemical equation, one mole of the metal reacts completely to form one mole of…

Q: 10. A 1.65-g sample of Al is reacted with excess HCl and the hydrogen produced is collected over…

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Q: Hot air balloons work by changing the density of the air within the balloon, which causes the…

A: The root mean square velocity (RMS value) is the square root of the mean square of the velocity of…

Q: onsider the following reaction: 4A(s) + 2B(g) → 2C(l) + 3D(g) 18.4 g of A (MM = 71.096 ) is added…

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Q: The following reaction forms 14.0 g of Ag(s): 2Ag2O(s)→4Ag(s)+O2(g)     Part A What…

A: The values are given as follows:

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

A: Introduction: The catalytic decomposition of hydrogen peroxide has occurred into water and oxygen…

Q: When the following reaction took place at 23.8 °C and a pressure of 758 torr, 3.90 L of O2(g) were…

A: Given, Note: 760 torr = 1 atm Pressure (P) = 758 torr = 0.997 atm Volume (V) = 3.90 L Temperature…

Q: In a rigid 2.0 L container, a solid catalyst is used to convert ammonia into nitrogen and hydrogen…

A: Given: Initial Pressure P1 = 2.56 atm Initial Temperature T1 = 25 oC= 298 K Final Temperature T2 =…

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

A: Considering methane gas as an ideal gas we have have ideal gas equation PV=nRT ,where P is pressure,…

Q: iron (s) + chlorine (g) →→→→→→ iron(III) chloride (s) grams iron

A:

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.