1. Sphalerite is a zinc sulfide (ZnS) mineral and an important commercial source of zinc metal. The first step in the processing of the ore consists of heating the sulfide with oxygen to give zinc oxide, Zno, and sulfur dioxide, SO2. How many kilograms of oxygen gas combine with 5.00 X 103 g of zinc sulfide in this reaction? (You must first write the balanced chemical equation.)

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

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Q: Ariana plans to react a sample of magnesium carbonate (MgCO3) with hydrochloric acid (HCl) to…

A: Ariana plans to react a sample of magnesium carbonate (MgCO3) with hydrochloric acid (HCl) to…

Q: The calcium content in a 0.4367-g sample of phosphate rock was determined by first dissolving the…

A: Here we have to determine mass percentage of calcium present in 0.4367 gram phosphate rock  if all…

Q: What is the theoretical yield of MgO from the combustion of 5.25 x 10^23 atoms of Mg and 4.69 x…

A:

Q: The mineral stibnite, antimony(III) sulfide, is treated with hydrochloric acid to give antimony(III)…

A: given: Balanced chemical equation is Sb₂S₃ + 6HCl → 2SbCl₃ +3H₂S Molar mass Sb₂S₃ = 339.715 g/mol…

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: The balanced chemical equation for the reaction between iron(III) oxide and aluminum is: Fe203 (s) +…

A: 2 moles of aluminum and 1 mole of iron(III) oxide react to produce 1 mole of aluminum oxide and  2…

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: To determine the amount of platinum in an alloy, a 8.565 g8.565 g sample of an alloy containing…

A:

Q: Cr2O72– (aq), reacts with zinc metal to produce Cr3+ (aq) and Zn2+ (aq) ions. When the reaction is…

A:

Q: Balance the following chemical equation (if necessary): SiO₂ (s) + C(s)→→ Si(s) + CO(g)

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Q: Cryolite, Na, AlF6(s), an ore used in the production of aluminum, can be synthesized using aluminum…

A: The first step in this problem is to identify the limiting reactant, which is the reactant that will…

Q: A 6.7283 g sample of a hydrate of MgSO4 was heated to drive off all of the water of hydration. The…

A: The first step is to calculate the mass of water that was lost when the hydrate was heated. This can…

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: A large electronics company is creating and testing SiC for use in new computer chips. A chemical…

A: Limiting reagentLimiting reagents are substances that are completely consumed in the completion of a…

Q: Consider the reaction: P4(s) + 6Cl₂(g) → 4PC13 (1) Given an initial mass of 15.75 g P4, an excess of…

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Q: Sand is mainly silicon dioxide. When sand is heated with an excess of coke (carbon), pure silicon…

A: Given : Silicon dioxide reacts with coke i.e carbon to produce silicon and carbon monoxide. Hence…

Q: White phosphorus (P4) is used to produce phosphorus oxides, such as P4O10. How many kilograms of…

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Q: Quartz, SiO2, contains 46.7% silicon. What mass of silicon is present in 370 g of quartz?

A: To solve this problem we have to calculate the mass of silicon present in quartz .

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: The equation for the reaction between sodium hydrogen carbonate and sulfuric acid at room…

A:

Q: Sulfur is used in the production of vulcanized rubber, detergents, dyes, pharmaceuticals,…

A: volume of SO2= 1.3x104 m3 Volume of H2S= 2.5x104m3      as we know 1m 3=1000litre so, volume of…

Q: Balance the following chemical equation CB,H.(g) + O₂(g) - > CO₂(g) + H₂O(g)

A: Is an equation in which the number of atoms for each element in the reaction and the total charged…

Q: 1.How many moles of CuO can be produced from 1.11 mol of Cu2O in the following reaction?…

A: The amount of substance is usually defined in terms of mole. The mole is the SI unit of the quantity…

Q: Ammonia, NH3, is an important industrial chemical. It is produced using the Haber process from…

A: we need to calculate the mass of ammonia produced

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

A: Answer:Limiting reagent is the reactant that is exhausted first in the chemical reaction and decides…

Q: 40. What are the arrows pointing to in Figure 3.11? a. Double ionic bonds b. Single ionic bonds c.…

A: The arrows pointing to in the figure has to be identified

Q: A mixture of CuSO4 · 5H2O and MgSO4 · 7H2O is heated until all the water is lost. If 5.047 g of the…

A: A mixture of CuSO4·5H2O & MgSO4·7H2O is heated until all the water is lost. 5.047 g of the…

Q: Consider the following balanced chemical reaction: Fe2O3 (s) + 2 Al (s) → Al2O3 (s) + 2 Fe (s)…

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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: Predict the reactants of this chemical reaction. That is, fill in the left side of the chemical…

A:

Q: The reaction between potassium chlorate and red phosphorus takes place when you strike a match on a…

A:

Q: The US Environmental Protection Agency (EPA) places limits on the quantities of toxic substances…

A: Formulae used: Molarity =Mole soluteSolution in Litre

Q: The first step in the manufacture of nitric acid by the Ostwald process is the reaction of ammonia…

A: Limiting reagent is the reagent which is consumed in the chemical reaction completely. It decides…

Q: A silvery-white, lightweight malleable metal is used in a huge variety of products including cans,…

A: Given: Mass of Al2O3 reacted=8.25×105 g Mass of Carbon reacted=7.50×105 g Yield=35%

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: Lithium faces an increasing demand since the alkali metal is a key component in a lithium- ion…

A: Given  Number of moles of lithium = 5.40 mol we have to calculate the weight of lithium. Molar mass…

Q: d) For the reaction of hydrocarbons in oxygen, C5H12(1) + O2(g) → CO2(g) + H₂O(g) CH3OCH3(g) + O2(g)…

A: A balanced chemical equation contain equal number of atoms of each elements on both sides of the…

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: Look at the balanced chemical equation for the reaction between copper and nitric acid: Cu(s) +…

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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: A chemical reaction calls for 0.125 moles of sodium acetate, NaC2H3O2. What mass, in grams, of…

A: The relationship between number of moles (n) and mass of a substance is given by: n=MassMolar…

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".