What mass of hydrogen peroxide (H202) must decompose to produce (oxygen and) 0.77 g of water?

Q: Carbon dioxide is removed from the atmosphere of spacecapsules by reaction with a solid metal…

A: a) The balanced reaction of LiOH with CO2 is as follows: Molar mass of LiOH is 23.95 g/mol Molar…

Q: How many grams of hydrogen H2 are produced by the reaction of 33 grams of magnesium Mg?

A: m H2 = ? m = 33 g Mg Mg + 2HCl --> H2 + MgCl2 MW H2 = 2 g/gmol MW Mg = 24.3 g/gmol MW MgCl2 =…

Q: How many grams of zinc sulfide are used to produce 1.28 grams of zinc oxide ?

A: Detail mathematical calculation is shown below

Q: Vanadium (V) oxide is decomposed into the elements sodium and chlorine by means of electrical…

A: 2V2O5 --> 4V  + 5O2 this oxygen oxidises sulphur to sulphur dioxide 5S  +   5O2 --> 5SO2  five…

Q: How many grams of NH4NO3 are required to produce 33.0 grams of N20?

A: Given :- mass of N2O = 33.0 g  To calculate :- mass of NH4NO3 (in g)

Q: What is the theoretical yield of SO3 produced by 4.58g of S?

A: Balanced chemical equation:2S+3O2 --------------à2SO3From the balance chemical equation,2…

Q: How many grams of sodium chloride should result from reacting 6.65 L of chlorine gas with sodium

A: Given the reaction of sodium and chlorine as 2Na(s)  +  Cl2(g)  →  2NaCl (s) Given that  volume of…

Q: How many moles of KOH are produced from 12.0 mol of H₂0?

A: Ans  Reaction of water with K  K  + H2O ------------>> KOH  + H+ So one mole of H2O produced…

Q: 195 kg of H3PO4 was extracted from 310 kg of natural phosphorite. Natural phosphorite Calculate the…

A: Molecular formula of calcium phosphate is Ca3​(PO4​)2​.Its molar mass is 3(40)+2(31)+8(16)=310…

Q: What is an extensive property? What is an extensive property of oxygen?

A: Extensive property is the property which depends upon the amount of matter or mass. Mass, volume,…

Q: How many grams of oxygen are required to produce 60.1 g of water vapor?

A: Moles of a substance can be given as the ratio of given mass of a substance to its molar mass. Given…

Q: how many grams of al2o3 can be made for 6.95 grams of Al

A:

Q: What volume of 1.85 M KOH will react completely to 100.0 g of Al2S3?

A: Here we are required to find the volume of 1.85M KOH required to react with aluminum sulphide

Q: If 2.08 mol water are produced, then how many moles of hydrogen peroxide were used?

A: To solve this problem we will use the Stoichiometry of balanced chemical equation .

Q: If ferric sulfide reacts with oxygen, how many moles of ferric sulfide is required to produce 6g of…

A: 4FeS +7 O2 = 2 Fe2O3+ 4 SO2

Q: 113.4 g of H,S reacts with 247.8 g of SO, according to this reaction. 2H,S + SO, 35 + 2H,0 What mass…

A:

Q: A sample of cesium metal reacted completely with water, evolving 2.028 mmol of dry H 2 at 19 degrees…

A:

Q: How many grams of iron, molar mass 55.85 g/mol, will be consumed during the formation of 12.51 grams…

A: given :- mass of Fe2O3 = 12.51 g  molar mass of Fe = 55.85 g/mol  To calculate :-  mass of Fe

Q: What total mass of iron is necessary to produce 1.00 moles of copper?

A: The balanced chemical equation for the production of copper from iron is shown below this is a…

Q: If 1.33 mol of PbS is heated in air, what amount of O2 is required for complete reaction? What…

A:

Q: What mass of HCl, in grams, is neutralized by a dose of milk of magnesia containing 3.56 g Mg(OH)2?

A:

Q: b. If 2.08 mol water are produced, then how many moles of hydrogen peroxide were used?

A: The molecular formula of hydrogen peroxide is H2O2 It easily undergo dissociation to produce water…

Q: 5. How many grams of oxygen can be produced from the decomposition of 100.0 g of KCIO,?

A: Question 5) Given, Mass of KClO3 decomposes = 100.0 g Mass (in grams) of Oxygen gas produced = ?…

Q: How many moles of calcium nitrate are needed to produce 0.850 gram of sodium nitrate?

A: 1 mole = 6.022×1023 ( Avogadro's number ) Anything which is in the number of 6.022×1023 is called 1…

Q: what is a balanced equation for the reaction of nonane,C9H20 , with oxygen O2?

A: The reaction of nonane with oxygen is a combustion reaction.  In combustion reaction, a hydrocarbon…

Q: An empty flask weighs 128.950 g. After vaporization of a sample of volatile liquid at a temperature…

A:

Q: How many moles of ammonia are produced by 1.40 moles of hydrogen?

A: Given that : We have to calculate the moles of ammonia produced by 1.40 moles of hydrogen.

Q: When chlorine atoms react with atmospheric ozone, what are the products of the reaction?

A: Ozone is gas which has the molecular formula O3. It is found in stratosphere layer of the…

Q: What is the theoretical yield of SO 3  SO3 produced by 5.66 g g of S S ?

A:

Q: 14) If 0.600 moles of NH3 were produced, how many moles of H2 are required?

A: Reaction involved for formation of NH3 N2(g)+3H2(g)------>2NH3 No. of moles of NH3 produced=0.600…

Q: How many moles of potassium chlorate are needed to produce 15 moles of oxygen?

A: Given :- number of moles of O2 = 15 mol  To calculate :- number of moles of KClO3

Q: How many tons of Ca3(PO4)2 are necessary to prepare 5.0 tons of phosphorus if the yield is 90%?

A: The reaction can be given as follows: 2Ca3(PO4)2+6SiO2+10C(s)→6CaSiO3+10CO+P4 The given percent…

Q: Question attached

A: Mole: it is defined as the ratio of mass to the molar mass.…

Q: (i) How is HNO3 prepared commercially?(ii) Write chemical equations of the reactions involved.(iii)…

A: 1) HNO3 is prepared commercially by the Ostwald's process. It's commercial production starts with…

Q: If 5.36 moles of Aluminum react sufficient oxygen, how many moles of Al2O3  should form?

A: moles of Al2O3  should form, If 5.36 moles of Aluminum react sufficient oxygen will be:

Q: Consider the following reaction. How many moles of oxygen are required to produce 10.0 moles of…

A:

Q: How many grams of water will be lost when 8.000 g of YBr3 .9H2O is heated?

A: The question is based on the concept of stoichiometry of reaction. first we write the balance…

Q: If 26.8 grams of water react to form 3.0 grams of hydrogen, how many grams of oxygen must…

A: water decomposition takes place via followning balanced reaction -2H2O(l)→ 2H2O(g) +O2from the above…

Q: How many grams of water would be lost if a 2.000 gram sample of CsF:1½H2O were heated?

A: Given : Mass of CsF.1½H2O = 2.000 g Molar mass of CsF.1½H2O = Atomic mass of Cs + Atomic mass of F +…

Q: 3. How many grams of sodium metal will be produced from 140g of NaN3? O 49.5g O 215g 0 42g O 99E

A: • No. of moles=Gives massMolar mass• Mass = No. of moles × Molecular weight• Molar mass of NaN3 = 65…

Q: How many grams of NH3 can be produced from 12.4 g of H2?

A: By writing the balance chemical reaction and using the concept of mole mole analysis we can solve…

Q: 28.5 g

A: Mass of 1 square inch of air =14.7 psi   1 psi =453.592 grams   14.7 psi=   =14.7 x 453.592   =…

Q: If 10.7 kg Al reacts with an excess of Fe,O3, how many kilograms of Al,0, will be produced?

A: Given :-  2Al(s) + Fe2O3(s)  -----> Al2O3(s)  + 2Fe(l)  Mass of Al = 10.7 kg  To be calculated :-…

Q: How many grams KCl can be produced from 179.88g  KClO3 ?

A: Mass of KClO3=179.88g Molar mass of KClO3 =122.55g/mol Molar mass of KCL =74.55g/mol Mass of KCl=?

Q: How many moles of potassium would be necessary to produce 23.5g of potassium oxide?

A: Mass of potassium oxide produced = 23.5 g Here, we have to calculate the moles of potassium that are…

Q: How many grams of ammonia (NH3) will be produce if 289 g of nitrogen are used?

A: Given :- mass of N2 = 289 g  To calculate :- mass of NH3 (in g)

Q: how do I calculate the theoretical yield of potassium alum from 1.0000g of aluminum?

A: The equation of Potassium alum

Q: You need to calculate the number of P₄ molecules that can formfrom 2.5 g of Ca₃(PO₄)₂. Explain how…

A: Solution;-  No. of atoms = No. of P atoms in 1 P4 molecule × No. of molecules No. of molecules =…

Thermochemistry

Thermochemistry can be considered as a branch of thermodynamics that deals with the connections between warmth, work, and various types of energy, formed because of different synthetic and actual cycles. Thermochemistry describes the energy changes that occur as a result of reactions or chemical changes in a substance.    

Exergonic Reaction

The term exergonic is derived from the Greek word in which ‘ergon’ means work and exergonic means ‘work outside’. Exergonic reactions releases work energy. Exergonic reactions are different from exothermic reactions, the one that releases only heat energy during the course of the reaction. So, exothermic reaction is one type of exergonic reaction. Exergonic reaction releases work energy in different forms like heat, light or sound. For example, a glow stick releases light making that an exergonic reaction and not an exothermic reaction since no heat is released. Even endothermic reactions at very high temperature are exergonic.