Zinc reacts with aqueous HCl to produce hydrogen gas (H2) according to the following reaction equation: Zn (s) + HCl (aq) → ZnCl2 (aq) + H2 (g) The hydrogen gas is collected over water. If you collected 260 mL of H2 at 25 oC, and the total pressure was 745 mm Hg, calculate the mass of H2 collected over water.

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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: A 0.215 g sample of zinc metal reacted with excess hydrochloric acid according to the following…

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Q: You are trying to determine, by experiment, the formula of a gaseous hydrofluorocarbon compound you…

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Q: Ammonia, NH3, burns in oxygen gas according to the reaction: 4NH3(g) + 5O2(g) → 4NO(g) + 6H2O(l).…

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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: 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 reaction between liquid reactants takes place at 18.0 °C in a sealed, evacuated vessel with a…

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Q: A reaction between liquid reactants takes place at 2.0 °C in a sealed, evacuated vessel with a…

A: • No. of moles = Given massMolar mass• PV = nRT⇒ P = nRTVWhere,P → PressureV → VolumeT →…

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

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Q: The following reaction is used to generate hydrogen gas in the laboratory. If 243 mL of gas is…

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Q: The International Space Station is equipped with a Vika Oxygen Generator which uses the following…

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Q: the moles of the metal carbonate reacted.

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Q: SF6

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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.