Over the years, the thermite has been used for welding railroad rails, in incendiary bombs, and to ignite solid-fuel rocket motors. The reaction is Fe2O3 (s) + 2AI (s) → 2Fe(l) + Al2O3 (s) What masses of iron (III) oxide and aluminium must be used to produce 15.0 g iron? What is the maximum mass of aluminium oxide that could be produced?

Q: Antimony is alloyed with lead to increase the rigidity of components used in the construction of…

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Q: The metals industry was a major source of air pollution years ago. One common process involved…

A: Given the reaction is, 2PbS+3O2---->2PbO+2SO2 Mole of PbS is 9.53mol. We have to calculate mole…

Q: Mercury can be obtained by reacting mercury(II) sulfide, HgS, with calcium oxide, CaO. How many…

A: Given: The reaction is as follows:  4CaO+4HgS→4Hg+3CaS+CaSO4 The mass of Hg produced=84.7 g. The…

Q: The following equation is for the synthesis of disulfur dichloride from sulfur and chlorine.  S8 (s)…

A: limiting reagent is the reactant that reacts completely during the reaction.

Q: If 6.1 × 10²⁵ molecules of CO₂ are produced in a combustion reaction, what is the mass in kg of CO₂…

A: Given: 6.1 × 10²⁵ molecules of CO₂ are produced in a combustion reaction.  To determine : The mass…

Q: For the following reaction, 41.2 grams of iron are allowed to react with 21.0 grams of oxygen gas.…

A: Given,the reaction:iron (s) + oxygen (g)  iron(III)oxide (s)mass of iron = 41.2 gmass of oxygen =…

Q: Consider the following balanced chemical equation:    2Cu2O(s) + O2(g)  →  4CuO(s)   Determine…

A: From the reaction it is clear that 2 moles of Cu2O reacts with one mole of O2 to give 4 moles of…

Q: Consider the reaction: 2Fe(s) + O₂(g) → 2FeO(s) Given an initial mass of 19.87 g Fe, an excess of…

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Q: Morphine (C₁₇H₁₉NO₃) is a painkiller in the opiate family. A sample of morphine was discovered that…

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Q: Many metals react with halogens to give metal halides. For example, iron reacts with chlorine to…

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Q: What is the percentage of calcium carbonate present in the original mixture?

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Q: 7. Elemental phosphorus is produced by the reaction, 2 Ca3(PO4)2 + 6 SiO₂ + 10 C →6 CaSiO3 + 10 CO +…

A: The moles of Ca3(PO4)2 is 6.00 mol.The moles of SiO2 are 20.0 mol.The moles of C is 24.0 mol.To…

Q: Magnesium hydroxide (Mg(OH) 2), as "Milk of Magnesia" can be used to neutralize excess stomach acid,…

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Q: Iron(III) oxide reacts with carbon monoxide according to the equation: Fe,0;(6) + 3 CO(g) – 2 Fe(s)…

A: The given reaction is, Fe2O3(s) + 3CO(g)  → 2Fe(s) + 3CO2(g)  Given that: mass of Fe2O3 = 22.55 g…

Q: Over the years, the thermite reaction has been used for welding railroad rails, in incendiary bombs,…

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Q: Iodine is prepared both in the laboratory and commercially by adding Cl, (g) to an aqueous solution…

A: Given: Mass of I2 produced = 93.0 g Known: Molar mass of I2 = 253.80 g/mol Molar mass of NaI =…

Q: Consider the reaction of solid P₄ and chlorine gas to form gaseous phosphorus trichloride. The…

A: The reaction given is P₄(s) + 6 Cl₂ (g) → 4 PCl₃ (g)

Q: AlI3(s)+3K(s)->3KI(s)+Al(s) Consider the reaction of solid aluminum iodide and potassium metal to…

A: Given :-  AlI3(s)+3K(s)->3KI(s)+Al(s)  amount of Al produced = 131.75 g  To calculate :-  Amount…

Q: Copper(II) carbonate was used by artists as a pigment due to its bright green-blue colour. It can be…

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Q: The reaction of iron metal and chlorine gas to give iron(III) chloride is illustrated below. (a)…

A: (a)

Q: For the following reaction, 17.1 grams of chlorine gas are allowed to react with 54.4 grams of…

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Q: One method used in the eighteenth century to generate hydrogen was to pass steam through red-hot…

A: Given that, a reaction is 3Fes+4H2Og→Fe3O4s+4H2g. The molar masses are Fe = 55.845 g/mol, H2O =…

Q: Ammonia is produced from the reaction of nitrogen and hydrogen according to the following balanced…

A: Given information,        1.40 × 103 g N24.60 × 102 g H2

Q: A sample of 8.61 g8.61 g of liquid 1‑propanol, C3H8O,C3⁢H8O, is combusted with 64.6 g64.6 g of…

A: It's a multiple part question.   Given information, Mass of 1-propanol = 8.61 g Mass of oxygen gas =…

Q: According to the following reaction, how many grams of water will be formed upon the complete…

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Q: Small quantities of oxygen can be prepared in the laboratory by heating potassium chlorate, KCIO,…

A: Given :-  2KClO3 → 2KCl + 3O2   mass of KClO3 = 82.4 g  To calculate :  mass of O2 produced (in…

Q: Determine the theoretical yield of alum (KAl(SO4)2·12 H2O), in units of g, if a student starts with…

A: Interpretation: The theoretical yield of alum in grams is to be determined. Given: Theoretical yield…

Q: If 8.3 × 10²⁵ molecules of CO₂ are produced in a combustion reaction, what is the mass in kg of CO₂…

A: First find the moles of CO2 from the given no. of molecule. then find weight.

Q: Morphine (C₁₇H₁₉NO₃) is a painkiller in the opiate family. A sample of morphine was discovered that…

A: Given: When morphine undergoes combustion, carbon dioxide is produced. Mass of mixture            =…

Q: Consider the reaction: C(s) + O₂(g) → CO₂(g) Given an initial mass of 11.3 g C, an excess of O2, and…

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Q: Calculate the mass of FeS formed when 8.5 g of iron reacts with 12.8 g of sulfur according to the…

A: Concept:  Always the limiting reactant will decide the amount of the product formed as it will be…

Q: anhydride (C₄H₂O₃) can be accomplished by reacting benzene (C₆H₆) and oxygen gas in the following…

A: First convert mass into molar mass  Then use mole-mole relationship  After getting mole of CO2 then…

Q: Methanol (CH 4O), which is used as a fuel in highperformance racing cars, burns in the presence of…

A: According to the given balanced chemical reaction, the two moles of methanol are reacting with three…

Q: 7. Consider the following reaction: 2 NaOH(s) + CO2(g) → Na2CO3(s) + H;O(1) 5.73 g of NaOH are…

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Q: Small quantities of oxygen can be prepared in the laboratory by heating potassium chlorate,…

A: According to the balanced chemical equation, the molar ratio of KClO3 and O2 is 2:3.Moles of KClO3…

Q: You are given the balanced chemical reaction: C4H8(g) + 6 O2(g) 4 CO2(g) + 4H₂O(g). If 0.3218 moles…

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Q: The synthesis of maleic acid anhydride (C₄H₂O₃) can be accomplished by reacting benzene (C₆H₆) and…

A: Balanced chemical equation   2 C₆H₆(l) + 9 O₂(g) → 2 C₄H₂O₃(s) + 4 CO₂(g) + 4 H₂O(g)

Q: Consider the following reaction: C3H8 + O2 → H2O + CO2. (a) Balance the reaction. (b) If you start…

A: We have a unbalanced equation , we have to balance it, Then we are having 100 g of each reactant ,we…

Q: Silicon tetrachloride (SiCl4 ) can be prepared by heating Si in chlorine gas:  Si(s) + 2Cl2(g) ->…

A: Molar mass of Cl2 = 70.9 g/mol

Q: Small quantities of oxygen can be prepared in the laboratory by heating potassium chlorate,…

A: Given -> 2KClO3 ----> 2KCl + 3O2 ----(1) Weight of KClO3 = 73.9 gm

Q: A reinforced steel cylinder is filled with 21.0 moles of hydrogen and 12.0 moles of oxygen. The…

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Q: When aluminum metal is placed into hydrochloric acid (HCl), aluminum chloride and hydrogen gas are…

A: Here we are required to find the mass of HCl needed to produce 2.02gm of hydrogen gas

Q: Consider the reaction Al (s) -3 F, (g) -→ 2 AIF, (s) If 85.43 g of aluminum reacts with 85.43 g of…

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Q: A student reacts 13 moles of iron with 21 moles of oxygen according to the following equation:…

A: Moles of iron= 13mol Moles of oxygen=21mol Moles of iron (III) oxide=?

Q: Morphine (C₁₇H₁₉NO₃) is a painkiller in the opiate family. A sample of morphine was discovered that…

A: Mass % of morphine = Mass of morphine x 100/Mass of mixture

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.