Zn (s) + H2SO4 (aq) --> H2 (g) + ZnSO4 (aq) You run a reaction and collect 166.3 mL of hydrogen gas from this reaction into a balloon. If the atmospheric pressure is 740.3 torr, and the temperature of the gas is 23.4°C, how many grams of Zn must have reacted.

Q: If 3.50 g sample of acetylene (C2H2) is burned in excess oxygen, how many liters of CO2(g) can be…

A: Given: Mass of the acetylene sample= 3.50 g Pressure = 1.00 atm Temperature= 0°C=0+273.15 K=273.15 K…

Q: Dinitrogen difluoride gas is collected at 13.0 °C in an evacuated flask with a measured volume of…

A: Given  Temperature ( T ) = 13 ℃                              = ( 13 + 273 ) K…

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

A: The pressure of the wet hydrogen gas is the sum of the pressure of the dry hydrogen gas and the…

Q: After dissolving an unknown tablet in water, the tablet dissolves and liberates a gas. Suppose at 1…

A: Given that:            Volume of gas (V) = 360 mL = 0.360 L               Temperature (T) = 20℃ =…

Q: Calcium carbonate decomposes to form calcium oxide, and carbon dioxide when heated as shown in the…

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Q: A helium-filled weather balloon has a volume of 537 L at 21.9°C and 753 mmHg. It is released and…

A:

Q: A helium-filled weather balloon has a volume of 729 L at 16.9°C and 755 mmHg. It is released and…

A: Initially,P1 = 755 mmHgV1 = 729 LT1 = 16.9°C = (16.9 + 273.15)K = 290.05 KLater,P2 = 454 mmHgV2 =…

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

A: Given: The balance chemical reaction is as follows: LiClO4 (s) + LiCl(s) + O2(g). The temperature,…

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

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Q: Carbon monoxide gas reacts with hydrogen gas to form methanol via the following reaction:…

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Q: volume of the balloon at this altitude is  L. A sample of nitrogen gas occupies a volume of 6.89 L…

A: 1) Using state equation, P1V1/T1 = P2V2/T2 754×731/296.9 = 641×V2/282.9 V2 =819L

Q: 300 mL nitrogen gas reacts with 751 mL hydrogen gas. both gases are at the same temperature and…

A: According to the mole concept, in terms of mass, the amount of substance in moles is equal to the…

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

A: First determine the moles of hydrogen produced from given reaction under given conditions.…

Q: Consider the following reaction: 4Al (s) + 3O2 (g) → 2A12O3 (s) It takes 2.00 L of pure oxygen gas…

A: Given data: Volume = 2.00 L STP condition.

Q: A sample of gas contains 0.2000 mol of CO(g) and 0.2000 mol of NO(g) and occupies a volume of 15.5…

A: Given ,Reaction : Total volume of smaple : Objective :

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

A: Balanced chemical reaction,  CH4 + H2O -----> 3H2 + CO Moles of CH4 = 0.1100 mol Moles of H2O =…

Q: A mixture of solid calcium oxide,  CaO,   and solid barium oxide,  BaO,   weighing  3.145 g   is…

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Q: When sodium chlorate (NaClO3) is heated, it decomposes into sodium chloride and oxygen gas. A…

A: Given Sodium Chlorate decomposes into sodium chloride and oxygen gas. Volume of gas= 400.0 mL…

Q: A helium-filled weather balloon has a volume of 591 L at 15.9°C and 752 mmHg. It is released and…

A: Given, A helium-filled weather balloon has a volume of 591 L at 15.9°C and 752 mmHg. It is released…

Q: A mass of 8.92 g carbon monoxide is reacted with 7.18 g hydrogen to form methanol.   CO(g) + 2 H2(g)…

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Q: Boron trifluoride gas is collected at 6.0 °C in an evacuated flask with a measured volume of 15.0 L.…

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Q: micro-syringe has a maximum volume of 50 mL. A chemical reaction known to generate methane gas is…

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Q: The Haber Process synthesizes ammonia at elevated temperatures and pressures. Suppose you combine…

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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…

A: The effect of pressure and temperature is measured by Boyle’s law and Charles's law respectively.…

Q: In the laboratory, a chemist generated hydrogen gas via the electrolysis of water. The chemist…

A: 1 torr = 0.001 atm Therefore, 740 torr = 0.740 atm

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.