A 3.19-g mixture of solid CaO and solid ZnO is reacted in a 2.00-L container with CO2(g) at a pressure of 680 Torr at 25 °C to form the corresponding (solid)metal carbonates. The final pressure after the reaction is 260 Torr. What was the mass percent of CaO in the original mixture?

Q: Gaseous iodine pentafluoride, IF₅, can be prepared by the reaction of solid iodine and gaseous…

A: Given reaction:  I₂(s) + 5F₂(g) → 2IF₅(g) The volume of the reaction flask = 10.00 L The mass of I₂…

Q: The airbags that protect people in car crashes are inflated by the extremely rapid decomposition of…

A:

Q: The airbags that protect people in car crashes are inflated by the extremely rapid decomposition of…

A: Decomposition reaction is a reaction in which a single reactant decomposes to form two or more…

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

A: Given; N2 (g) + 3 H2 (g)  ➝ 2 NH3 (g) At STP, Volume of nitrogen gas (N2) reacts = 1580 L Volume of…

Q: As 1g of the radioactive element radium decays over 1 year, it produces 1.16 x 10^18 alpha particles…

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Q: Hydrogen gas is produced by the reaction between metallic aluminum and aqueous hydrochloric acid.…

A: In this question, we have to first find the number of moles of hydrogen gas produced. Given that,…

Q: The airbags that protect people in car crashes are inflated by the extremely rapid decomposition of…

A:

Q: A 4.00 g sample of a mixture of BaO and CaO is placed in a 1.00 L vessel containing CO2 at a…

A: First we have to calculate the reacted pressure of CO2 gas in the given reaction:-The initial…

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

A:

Q: A mixture of xenon and nitrogen gases at a total pressure of 927 mm Hg contains xenon at a partial…

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Q: 5. If 2.0 moles of each gas are taken and kept under the same conditions of temperature and…

A: At STP same moles of gas occupies  same volume .

Q: A 0.6333 g sample of a metal carbonate was reacted with hydrochloric acid. The carbon dioxide gas…

A: Given data, Mass of sample = 0.6333 g Temperature = 26.0oC Total pressure = 103.80 kPa = 1.024 atm…

Q: Gaseous iodine pentafluoride, IF₅, can be prepared by the reaction of solid iodine and gaseous…

A: Given mass of iodine = 11 g Molar mass of iodine = 253.81 g/mol Number of moles of iodine =…

Q: Chlorine can be prepared in the laboratory by the reaction of manganese dioxide with hydrochloric…

A: Given Temperature = 25 oC = (273+25)K = 298 K Pressure = 705 torr = 705/760 = 0.927 atm Volume = 285…

Q: Sodium metal reacts with chlorine gas to form sodium chloride. A closed container of volume 2.00 x…

A: The reactants given are sodium metal and chlorine gas and the product is sodium chloride. Given:…

Q: Magnesium can be used as a "getter" in evacuated enclosures to react with the last traces of oxygen.…

A: The given balanced chemical equation is :

Q: Water can react with carbon dioxide to form hydrogen carbanate according to the following chemical…

A: Given :-  H2O (I) + CO2 (g) > H2CO3 (aq)  Mass of H2O = 421 g  Volume = 42.5 L  Temperature =…

Q: Consider the chemical reaction: 2 H2O(1) → 2 H2(8) + O2(8) What mass of H20 is required to form 1.4…

A: According to the law of chemical equivalence, in a chemical reaction, the number of equivalents that…

Q: The airbags that protect people in car crashes are inflated by the extremely rapid decomposition of…

A: 1. Balanced chemical equation Given;

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

A:

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

A: To solve this problem we will use Stoichiometry of balanced chemical equation .  First we will find…

Q: Hydrogen gas is produced by the reaction between metallic aluminum and aqueous hydrochloric acid.…

A: The balanced reaction taking place is given as, => 2 Al (s) + 6 HCl (aq) ⟶ 2 AlCl3 (aq) + 3 H2…

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

A:

Q: Sodium metal reacts with chlorine gas to form NaCl. A closed container of volume 3.00 x 103 mL…

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Q: Gaseous iodine pentafluoride, IF₅, can be prepared by the reaction of solid iodine and gaseous…

A: Percentage of IF5 = 20.06 %

Q: Gaseous iodine pentafluoride, IF, can be prepared by the reaction of solid iodine and gaseous…

A: Given: Volume = 10 L Mass of I2 = 17 g Pressure of F2 = 2 atm

Q: Chlorine can be prepared in the laboratory by the reaction of manganese dioxide with hydrochloric…

A: Given data,Volume of…

Q: Intergalactic space contains mostly hydrogen atoms, H(g), at a concentration of about 1.0 atom/L.…

A: Interpretation - To determine the pressure of monatomic hydrogen gas when H(g), at a concentration…

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

A: In Habers process for the synthesis of ammonia, 3 moles of H2 gas is consumed per mole N2 gas and…

Q: The airbags that protect people in car crashes are inflated by the extremely rapid decomposition of…

A: Given-> Volume of N2(g) = 87.0 L T = 12.0°C = 12.0 + 273 = 285 K P = 1 atm

Q: The airbags that protect people in car crashes are inflated by the extremely rapid decomposition of…

A:

Q: Methanol is synthesized by the reaction of CO2 and H2 as seen in the reaction  CO + 2 H2 = CH3OH…

A: CO2 + 2H2 ---> CH3OH  Temperature = 22°C = 22+273 = 295 K Pressure = 756 mm Hg  = 756 /760 =…

Q: Chlorine can be prepared in the laboratory by the reaction of manganese dioxide with hydrochloric…

A: The given chemical equation is as follows: MnO2(s) + 4HCl(aq) → MnCl2(aq) + 2H2O(l) + Cl2(g) The…

Q: For the given reaction, what volume of Br2 would be required to react with 5.0 L of NO, measured at…

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

A: According to the reaction  N₂ (g) + 3 H₂ (g) → 2 NH₃ (g) we can say the 1 L of N2 will react with 3…

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

A: At STP the volume of one mole of gas is 22.4 L. Then, at STP, 22.4L of N2 contains 1 mole of N2 .…

Q: Gaseous iodine pentafluoride, IF₅, can be prepared by the reaction of solid iodine and gaseous…

A: Volume of flask = V = 10.0 L Mass of I2 = 15.0 g  Pressure of F2 , P = 2.00 atm Temperature…

Q: Water can react with carbon dioxide to form hydrogen carbonate according to the following chemical…

A: Given :-  H2O(l) + CO2(g) → H2CO3(aq)  Mass of Water = 421 g  Volume of container = 45.5 L…

Q: The airbags that protect people in car crashes are inflated by the extremely rapid decomposition of…

A:

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

A: Given, Volume of N2 at STP = 1580 LVolume of H2 at STP = 4240 LWe know that, at STP 1 mole of a gas…

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

A:

Q: A 1.25 g sample of an unknown gas at 47 ∘C and 1.00 atm is stored in a 2.55 L flask. What is the…

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

A: We have to calculate the volume of Reactant left.

Q: A substance containing only carbon and hydrogen is analyzed and found to contain 85.7% carbon by…

A: Density of compound at STP = 1.87 g/Li.e. 1 L of compound weighs 1.87 g1 mol of compound at STP =…

Q: Sulfur trioxide, SO3, is produced in enormous quantities each year for use in the synthesis of…

A: Given , Mass of sulfur = 4.60 g Molar mass of sulfur = 32.0 g/mol Moles of sulfur = mass/molar mass…

Q: Gaseous iodine pentafluoride, IF, can be prepared by the reaction of solid iodine and gaseous…

A:

Q: Aluminum, an active metal, reacts with hydrochloric acid in a single displacement reaction.  a)…

A: Aluminum reacts with dilute hydrochloric acid at room temperature. The metal dissolves in…

Q: Calcium hydride reacts with water to produce hydrogen gas according to the following reaction:…

A: Total pressure = 2 atm Temperature = 25 degree Celsius = 298 K Volume = 1000 L No of mole of…

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.