Sand is mainly silicon dioxide. When sand is heated with an excess of coke (carbon), pure silicon and carbon monoxide are produced. Write a balanced equation for the reaction and determine how many moles of silicon dioxide are required to form 20.00 g of silicon? Explain your stoichiometric calculations.

Q: Consider the equation:  2 Na + 2 H2O → 2 NaOH + H2.  If 92.0 g of sodium is reacted with 76.0 g of…

A: Two mole of sodium react with two mole of water and produced two mole sodium hydroxide and one mole…

Q: Hydrogen cyanide gas can be made by a two step process. First, ammonia is reacted with oxygen gas to…

A: The balanced equation for the two reactions are, 1) Ammonia is reacted with oxygen gas to give…

Q: Carborundum is silicon carbide, SiC, a very hard material used as an abrasive on sandpaper and in…

A: Silicon carbide has been produced in the Acheson graphite electric resistance furnace. In this…

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: Consider the reaction of solid P4 and chlorine gas to form gaseous phosphorus trichloride. a) Write…

A:

Q: Reacting water with magnesium nitride produces ammonia (NH3) and magnesium hydroxide. If this…

A: The reaction of magnesium nitride and water to produce ammonia and magnesium hydroxide is given by:

Q: 60. Lithium and bromine combine to form lithium bromide, as shown here. If 30 moles of Li react with…

A: 2Li(s) + Br2(l) ----> 2LiBr(s) ............(equation-1) Moles of Li = 30 mole

Q: If 1.800 g of aluminum reacted with an excess aqueous HCl to produce 8.894 g of aluminum chloride.…

A: Answer:- firstly a balanced chemical equation is written then using the mass , mass of Al and cl is…

Q: Combustion of a hydrocarbon in a limited supply of air produces CO in addition to CO2 and H2O. When…

A: Given data :

Q: Combustion of a hydrocarbon in a limited supply of air produces CO in addition to CO2 and H2O. When…

A:

Q: My brother-in-law is a mining engineer.  Part of his job is to determine how much ore he needs to…

A: 1) Compare with the balanced chemical equation and identify the limiting reagent between the…

Q: Aluminium metal reacts with sulphuric acid, H2SO4, to yield aluminium sulphate and hydrogen gas.…

A: Aluminium metal reacts with sulphuric acid, H2SO4, to yield aluminium sulphate and hydrogen gas. The…

Q: The Hall process for the production of aluminum involves the reaction of aluminum oxide with…

A: Mass of aluminum = 10 kg                             = 1.0*103 g     Number of moles of Al produced…

Q: A 15-g sample of lithium is reacted with 15 g of fluorine to form lithium fluoride: 2Li + F2 →…

A: First convert mass into mole by diving molar mass respectively Then Calculate limiting reagent by…

Q: Write the balanced chemical equation for the reaction of magnesium metal with oxygen gas to form…

A: Mass of Mg = 10.0 g Moles of Mg = 10.0g/24.305g/mol = 0.411 mol Mass of Oxygen = 10.0g Moles of…

Q: Cinnabar (HgS) is the ore of mercury metal (Hg). When reacted in a smelter with gaseous oxygen (O2),…

A: Given   Mass of cinnabar is 1.00 kg. Yield of product is 100 %.

Q: 21. In the Haber-Bosch process, hydrogen gas reacts with nitrogen gas to produce ammonia according…

A: We have to calculate the theoretical yield of product.

Q: One way to analyze for the amount of phosphorus in a rock is to precipitate the phosphorus as…

A: Given the mass of the rock sample = 2.832 g Percent of Ca3(PO4)2 = 86.52% => mass of Ca3(PO4)2 in…

Q: Nitrogen gas can be prepared by passing gaseous ammonia over solid copper (II) oxide at high…

A: At high temperature, when gaseous ammonia passed over copper (II) oxide produces nitrogen gas and…

Q: The Hall process for the production of aluminum involves the reaction of aluminum oxide with…

A: The Balanced equation for the reaction describedis given by →Al2O3 + 3 c → 2 A l + 3 coGiven, mass…

Q: D. Aluminium metal reacts with sulphuric acid, H2SO4, to yield aluminium sulphate and hydrogen gas.…

A: In balance reaction 2 mole of aluminium react 3 mole sulphuric acid and produced 3 mole H2

Q: Titanium (Ti) is a strong, lightweight metal that is used in the construction of rockets, jet…

A: The answer to the given question is as follows:

Q: If 6 moles of Si and 6 moles of N2 are combined in a reaction flask, what remains in the reaction…

A:

Q: The balanced chemical equation is P₄(s) + 6 Cl₂(g) → 4 PCl₃(g). What is the mass in grams of…

A:

Q: 1.What mass of Cu(IO3)2 can be formed from 0.650 g of CuSO4 · 5H2O? 2. What mass of KIO3 is needed…

A:

Q: Combustion of a hydrocarbon in a limited supply of air produces CO in addition to CO2 and H2O. When…

A: Combustion of hydrocarbons in presence of oxygen proudces water and carbon dioxide. If the  oxygen…

Q: A brilliant white light in some firework displays produced by burning magnesium in air. The…

A: Interpretation: The balanced chemical equation for production of magnesium oxide from magnesium and…

Q: Elemental analysis is sometimes carried out by combustion of the sample. For a hydrocarbon, the…

A:

Q: Consider the decomposition of aluminum sulfide into aluminum metal and solid S₈ (one of the forms of…

A: Aluminum sulfide decomposes to form solid aluminum and sulfur (as S₈). The chemical reaction is:…

Q: Sulfur dioxide gas (SO2) reacts with excess oxygen gas (O2) and excess liquid water (H2O) to form…

A: Given data, Mass of sulfuric acid = 250 g Volume of sulfur dioxide = 67.2 L

Q: Carborundum is silicon carbide, SiC, a very hard material used as an abrasive on sandpaper and in…

A: The balanced equation for the reaction of Silicon dioxide (SiO2) with Carbon (C) is as follows:

Q: Combustion of a hydrocarbon in a limited supply of air produces CO in addition to CO2 and H2O. When…

A:

Q: . Gypsum has the formula CaSO4?2H2O. Plaster of Paris has the chemical formula CaSO4?12 H2O. In…

A: For determining the amount of product, the mole ratio of reactants in a balanced reaction must be…

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) Given : mass of P4 reacting = 419.7 g

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".