Small rocket engines, such as model rockets, contain KClO to provide oxygen for the combustion reaction fueling the rocket motor. The relevant reaction for KClO is: 2 KClO(s) → 2 KCl(s) + 3 O(g) If 117.0 grams of solid KClO are burned in one of these rocket motors, how many liters of gaseous O are produced at 1.18 atm of pressure and 550.0 ºC?

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: Copper reacts with nitric acid according to the following equation. Cu(s)  +  4 HNO3(aq)  →…

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Q: Consider the following equation: CH&O7(s) +3 NaHCO3(s) + H20(1) --> Na3CgHgO7(s) + 3H2O(1) + 3CO2g)…

A: Here we first calculate the production of CO2 as a mole. Then use gas equation to determine the…

Q: Aerosol cans carry clear warnings against incineration because of the high pressures that can…

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Q: When 1.836 L of 6.000 M hydrochloric acid react with 25.0 g iron how many liters of hydrogen gas…

A: Limiting reagent is the reagent which get utilised during the reaction and due to which the reaction…

Q: Hydrogen gas can be produced in the laboratory through the reaction of magnesium metal with…

A: Given: Mass of Mg = 30.0 g Pressure of H2 = 780 mmHg Temperature = 26oC Molar mass of Mg = 24 g/mol

Q: A 20.0-L gas cylinder contains 4.80 g H2at 258C. What is the pressure of this gas?

A: Moles of H2 gas , n = mass molar mass = 4.802= 2.40 mol  Temperature , T = 258 + 273.15 = 531.15 K…

Q: If 25.8 L of H2 is collected at 1.34 atm and 38°C, what was the mass of magnesium reacted? Mg(s) +…

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Q: Chemical analysis of an unknown compound shows that it contains 64.9%C, 13.5%H, and 21.6% O by mass.…

A: Given  Multipart questions

Q: The following combustion reaction is done with 0.225 g of ethylene, C2H4. C2H4 (g)  + 3 O2 (g)  → 2…

A: Number of moles of ethene and carbondioxide can be calculated as follows:

Q: What volume of oxygen at 26.3 degrees C and 1.1 atm is needed to completely react via combustion…

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Q: Small rocket engines, such as model rockets, contain KCIO3 to provide oxygen for the combustion…

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Q: Which of the following is true about the kinetic energy (E) of the molecules of Ne(g) and the…

A: Concept: Gas particles are in continuous and random motion. The Collisions between gas particles are…

Q: The combustion of octane, C, H, proceeds according to the reaetion shown. 18 2 C,H18() + 25 O,(g) →…

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Q: Calcium carbonate, CaCO31s2, the principal compound in limestone, decomposes upon heating to CaO(s)…

A: Given, P = 1.3 atm V = 250 mL T = 310C

Q: Considering the following reaction:                   2H2 (g) + O2 (g) → 2H2O (l)   If 5.32 g of…

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Q: Hydrogen gas is collected at 40oC during the following reaction: Al          +            HCl…

A: The balanced chemical equation for the reaction between Al and HCl is shown below:…

Q: The explosive, PETN, pentaerythritol tetranitrate, is one of the most powerful explosives known. It…

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Q: Dimethyl ether, CH3OCH3, undergoes gas phase decomposition to form methane, hydrogen gas, and carbon…

A: First calculate the moles of Dimethyl ether :  Moles = [ mass / molar mass ]  Moles = [ 66.92g /…

Q: Mg (s) + HCl (aq) → MgCl2 (aq) + H2 (g) What volume (in L) of H2 at 35 oC and 765 mm Hg can be…

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Q: Given the following chemical equation for the combination reaction of sodium metal and chlorine gas:…

A: Following information about the mass of sodium metal given -  Mass of sodium metal = 7.8 g  Also…

Q: If 9.45 g of Al (s) reacts with 4.39 L of O2 (g) at 1.20 atm and 54.3°C, how many grams of Al2O3 (s)…

A: The reaction taking place can be written as  => Al (s) + O2 (g) -------> Al2O3 (s)  Balancing…

Q: A 0.0665 g sample of aluminum metal reacts with hydrochloric acid to give 90.5 mL of hydrogen gas at…

A: Stoichiometry relates the amount of reacting with the formed species. As per this concept, the…

Q: " A sample of gas contains 0.1600 mol of CH4(g) and 0.3200 mol of O₂(g) and occupies a volume of…

A: Given: Initial moles of CH4 = 0.1600 mol Initial moles of O2 = 0.1600 mol Initial volume of gas =…

Q: How many grams of iron are needed to completely consume 45.3 L of chlorine gas according to the…

A: In the reaction :  Iron(s) + chlorine (g)  iron(III) chloride (s) Volume of chlorine gas = 45.3 L…

Q: P4(g) + Br2(g) --> PBr3(g) What volume of phosphorus tribromide will be produced at 22 oC and…

A: Molar mass of P4 = 124 g/mol Hence moles of phosphorus reacting = mass / molar mass = 48.5 / 124 =…

Q: What volume (in L, at 603 K and 3.04 atm) of oxygen gas forms when 4.39 g of KClO3 decomposes?…

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Q: How many moles of hydrochloric acid are needed to produce 9.46 L of chlorine gas according to the…

A: The given problem can be solved knowing equivalents of reactants used and products produced using a…

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: In the reaction 2KClO3(s) --> 2KCl(s) + 3O2(g) If 22.4 L of oxygen at STP are needed, how many…

A: Potassium chlorate decomposes into potassium chloride and oxygen on heating. The equation for the…

Q: Given the equation 2KCLO3(s)-->2KCl(s)+3O2  (g) A 3.00-g sample of KClO3 is decomposed and the…

A: Consider the given information as follows; 2 KClO3 (s)  →  2 KCl (s)   +   3 O2 (g) Mass of KClO3 =…

Q: How many grams of carbon disulfide are needed to completely consume 48.9 L of chlorine gas according…

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Q: Given the following equation:   Al          +           HCl         →        AlCl3     +…

A: The reaction taking place is given as, => Al + HCl ------> AlCl3 + H2  Given : Volume of H2…

Q: How many moles of bromine trifluoride are needed to produce 18.1 L of fluorine gas according to the…

A: For a gas of fixed amount, at constant temperature volume is reduced which will results in increase…

Q: KCl(s) + _O2(g). Balance th calculate the mass of KCIO; (N would be required to produce 2 measured…

A: Ideal gas law equation is a equation which obeys gas laws under all condition of temperature and…

Q: Nitrogen triiodide decomposes into its elemental gases as described by the equation...…

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Q: A 3.50 L sample of neon has a pressure of 1.03 atm at 17°C. If the sample has a pressure of 812…

A: Here given, Initial pressure (P1) = 1.03 atm Initial volume (V1) = 3.5 L Initial temperature (T1) =…

Q: 11. In the presence of a catalyst, potassium chlorate decomposes and provides a very simple way to…

A: Given;

Q: According to the reaction below, how many grams of sodium chloride can be produced from 36.8 L of…

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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: Consider the unbalanced chemical equation below: CaSiO3 (s) + HCl (g) --> CaCl2 (aq) + SiCl4 (g) +…

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Q: Consider the following reaction: 2SO2(g) + O2(g)-> 2SO3(g) What is the theoretical yield of SO3 ? If…

A: Answer:The reactant that is exhausted first in the chemical reaction and decides the yield of…

Q: Calculate the percent yield for this reaction.

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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: under thermal decomposition, potassium chlorate degrades into potassium chloride and oxygen by the…

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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: If 5.50 L of water vapor at 50.2 °C and 0.121 atm reacts with excess iron, how many grams of…

A: Assuming water vapours to behave as an ideal gas, ideal gas equation will be used to calculate the…

Q: Consider the reaction of NO2  If 23.8L of O2(g), measured at 35oC and 632mmHg is allowed to react…

A: Using Ideal gas law we can determine how many moles of O2 present in the reaction. Using…

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.