1. A thermite reaction was used historically to weld. In the reaction, solid aluminium and solid iron(III) oxide are ignited by high temperatures to produce aluminium oxide and iron. 2 Al(s) + Fe2O3(s) → 2 Fe(s) + Al2O3(s) If 58.3 g of aluminium is used in the reaction, how many moles of aluminium oxide are produced?   2. Sodium metal is a soft silvery metal. Sodium metal reacts vigorously with water to produce sodium hydroxide and hydrogen gas.  What mass of hydrogen can be produced from 9.72 g of sodium

Q: 4. Consider the reaction between sulfur trioxide and water: SO3 (g) + H2O (1) → H2SO4 (aq) A chemist…

A: 4) Given, SO3(g) + H2O(l) ➝ H2SO4(aq) mass of SO3 react = 61.5 g mass of H2O react = 11.2 Actual…

Q: 11. For each of the following balanced chemical equations, calculate how many moles of product(s)…

A: Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for…

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: Sucrose (C₁₂H₂₂O₁₁) is combusted in air according to the following reaction: C₁₂H₂₂O₁₁(s) + O₂(g) →…

A: Given:Mass of sucrose = 15.6 gMolar mass of sucrose = 342.30 g/mol

Q: The combustion of ammonia in the presence of oxygen yields NO2 and H2O: 4 NH3(g) + 7 O2(g) → 4…

A: Combustion is an exothermic reaction that leads to the liberation of heat during reaction. In this…

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

A: The molar mass of Fe is 55.85 g/mol. The molar mass of Al is 26.98 g/mol. The molar mass of Fe2O3 is…

Q: Sucrose (C₁₂H₂₂O₁₁) is combusted in air according to the following reaction: C₁₂H₂₂O₁₁(s) + O₂(g) →…

A: Given :  Mass of sucrose = 35.4 gram  Molar mass of sucrose = 342 gm/mole

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

A: Given, 4HCl(aq) + MnO2(s) → MnCl2(aq) + 2H2O(l) + Cl2(g) mass of MnO2 reacts = 42.5 g nass of HCl…

Q: For the following reaction, 15.1 grams of chlorine gas are allowed to react with 45.4 grams of…

A:

Q: A mixture of 9.275 g of iron (II) oxide and 8.435 g of aluminum metal is placed in a crucible and…

A: To solve this problem we will use the given chemical equation .

Q: For the following reaction, 8.20 grams of carbon (graphite) are allowed to react with 10.3 grams of…

A:

Q: 4. 2 KMnO4 + 16 HCI a. Referring to the above reaction equation, if 47.0 g of KMnO4 reacts with 55.0…

A: Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for…

Q: 3. Balance the following equation: B(s) + Cu2O(s) → B2O3(s) + Cu(s) If you perform this reaction…

A:

Q: How many grams of Fe are produced when 62.00 g of Fe2O3 reacts with excess aluminum according to the…

A: Answer Grams of Fe Produced = 43.365 g Explanation According to the balanced equation, 1 mole of…

Q: The metal zinc will react with hydrochloric acid according to the following equation: Zn(s) + 2…

A: In this question, we have to find how much hydrogen gas can be produced (in moles).

Q: 1. When heated, calcium carbonate decomposes according to the equation: CaCO3(s) →CaO(s) + CO₂(g) A…

A:

Q: When hydrobromic acid reacts with chlorine, bromine and hydrochloric acid are obtained: 2 HBr (aq) +…

A: We have to calculate the theoretical yield and percentage yield.

Q: Consider the reaction between nitrogen and hydrogen to form ammonia: N2 + 3H2 → NH3 Assuming that…

A: Reaction of nitrogen and hydrogen to produce ammonia is shown as the balanced chemical equationN2 +…

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

A: Mass of Fe = 10.1 g  Atomic mass of Fe = 55.845 g/mol  Number of moles of Fe =  10.1 / 55.845  =…

Q: How many grams of Fe are produced when 62.00 g of aluminum reacts with 62.0 g iron (III) oxide…

A:

Q: Consider the following reaction Ca(s) + 2HCl(aq) --> CaCl2(aq) + H2(g) What mass of Ca is needed…

A:

Q: 12.00 g of a potassium hydroxide, KOH solution is mixed with 40.00 g of lead (II) nitrate, Pb(NO3)2…

A: Given  Mass of KOH = 12 gram  Mass of Pb( NO3 )2  = 40 gram  Limiting reactant = ?

Q: HCl (aq)           +          NaOH (s)        →        NaCl (s)           +          H20 (l) In the…

A: The given chemical reaction is as follows: HCl(aq) + NaOH(s) → NaCl(s) + H2O(l) The given mass of…

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

A: Fe2O3 + 2Al.....> 2Fe + Al2O3 Mass of Fe = 14.4 g Molar mass of Fe = 55.8  Moles of Fe =…

Q: an iron nail has a mass of 1.12 g, what mass of rust would form

A: Number of moles = mass / molar mass  Number of moles of Fe = mass of Fe /55.845gmol-1

Q: Lead (II) carbonate decomposes to give lead (II) oxide and carbon dioxide: PbCO3 (s) → PbO (s) + CO₂…

A: Detail mathematical calculation is shown below

Q: 65.37 g Zn YOU MUST CALCULATE THE AMOUNT OF EXCESS REACTANT LEFT OVER AT THE END OF THE…

A: Please find the attachment

Q: When aluminum is placed in concentrated hydrochloric acid, hydrogen gas is produced. 2A1(s) +…

A:

Q: Chlorine gas can be prepared in the laboratory by the reaction of hydrochloric acid with…

A:

Q: This question has two parts and requires two answers. Consider the reaction 4 Fe + 3 O2→2 Fe2O3 a)…

A: Iron (Fe) = 20.0 g Oxygen (O2) = 10.5 g Theoretical yield = ? Limiting reactant = ? To find…

Q: Thermite is a metal powder mixture used frequently in pyrotechnics and metal construction work. It…

A: Molar mass of Fe2O3 =159.7 g/molMolar mass of AI =27.0 g/mol

Stoichiometry

Stoichiometry is a chemical division that evaluates the quantitative content of the chemical process with the help of the reacting molecules or products taking part in the reaction. The term “stoicheion” in “Stoichiometry”, is an old Greek term for "element" whereas “metron” means "measure".