Phosphoric acid, a mild acid used among other things as a rust inhibitor, food additive, and etching agent for cavity repair by dentists, can be made from elemental phosphorus in a two-step process. In the first step, phosphorus and oxygen react to form diphosphorus pentoxide: P4(s)+  5O2(g)→  2P2O5(g) In the second step, diphosphorus pentoxide and water react to form phosphoric acid H3PO4:   P2O5(g)+  3H2O(l)→  2H3PO4(l) Suppose the yield of the first step is 97.%  and the yield of the second step is 92.%. Calculate the mass of phosphorus required to make 7.0kg of phosphoric acid. Be sure your answer has a unit symbol, if needed, and is rounded to  2 significant digits.

Q: Balance the following chemical equation (if necessary) for the combustion reaction of propane:…

A: The combustion reaction of propane is given as, => C3H8 (g) + O2 (g) -------> CO2 (g) + H2O(g)…

Q: 4. Given: H₂O 1 CH + 1 HNO3 → 1 CH₂NO₂ + 1 6 If a student wishes to make at least 6.66 x 10 24…

A: Avogadro's number = 6.022 × 1023  Number of molecules in 1 mol of a substance equals Avogadro's…

Q: While idly tossing a baseball from hand to hand one day, your friend Yolanda (an expert chemist)…

A: Given statement is  "Metal sulfides react with strong acids to produce hydrogen sulfide and a salt"…

Q: 1. Consider the reaction CaCO;(s) 2 CaO(s) + CO,(g). Should I perform this experiment in an open or…

A: The given reaction is,  CaCO3 (s) ←→ CaO (s)+CO2 (g)  Assume the equilibrium arrow as same as given…

Q: Which of the following reactions does the chemical equation below best represent? A Cu(OH)₂ (s) ✈…

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Q: A number of reactions can be used to generate common gases on a laboratory scale. For example,…

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Q: When copper(II) sulfate pentahydrate (CuSO4·5 H2O) is heated, it decomposes to the dehydrated form.…

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Q: Titanium occurs in the magnetic mineral ilmenite (FeTiO3), which is often found mixed up with sand.…

A: To calculate the mass of Ti from given mass of ilmenite-sand mixture, we would proceed as :  1.)…

Q: The energy diagram shown represents the chemical reaction between solid ammonium c octahydrate:…

A: The heat absorbed is to be calculated

Q: a) Write a balanced chemical equation for the reaction.  b) What mass of acetic acid is in the…

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Q: What numbers belong in the blank spaces to fully balance the following reaction? _ Fe (s) + _ Cl₂…

A: As we know that, to balance a chemical equation requires algebraic variables as stoichiometric…

Q: 4. Phosphoric acid, H3PO4 (aq), is found in soda. Write the balanced chemical equation for the…

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Q: che net chemical equation for ti

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Q: 1. 2.8 g of nitrogen gas reacted with excess oxygen according to the following scheme: N₂ + O2 NO…

A: In the given reaction ->>Weight of nitrogen gas = 2.8 gmActual yield = 3.0 gm

Q: A chemical plant uses electrical energy to decompose aqueous solutions of NaCl to give Cl2, H2, and…

A: Solution stoichiometry involves the calculation of concentration of solutions in the given…

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

A: Given thatCarborundum (silicon carbide) is prepared by the reaction of pure sand with carbon at a…

Q: Balance the following chemical reaction using the combination of a smallest possible set of whole…

A: In Balanced chemical equation number of atoms of each species are equal on both reactant and…

Q: Consider the balanced equation SiO2(s)+3C(s)→SiC(s)+2CO(g) Complete the following table showing the…

A: The balanced chemical reaction is given below.

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: b The Ostwald process for the commercial production of nitric acid from ammonia and oxygen involves…

A: Given reactions.

Q: Give the chemical formula for 3-ethyl-4,4-dimethyl heptane. Make sure you can draw the structure.

A: Here we have to write the chemical formula of 3-ethyl-4,4-dimethyl heptane-

Q: Consider the Haber-Bosch process for the synthesis of ammonia from its elements. Calculate the…

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Q: Write a balanced chemical equation for the neutralization of aqueous perchloric acid, HClO4 (aq),…

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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: Consider the combustion of methane.   CH4(g)+2O2(g)→CO2(g)+2H2O(g)  Suppose 2.5 mol  of methane are…

A: Given:Moles of CH4 = 2.5 mol.Moles of O2 = 3.5 mol.

Q: Manganese commonly occurs in nature as a mineral. The extraction of manganese from the carbonite…

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Q: Phosphoric acid, a mild acid used among other things as a rust inhibitor, food additive, and etching…

A: Mass of phosphoric acid = 2.0 x 10 3 g

Q: Titanium occurs in the magnetic mineral ilmenite (FeTiO3), which is often found mixed up with sand.…

A: The explanation is given below-

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: The energy diagram shown represents the chemical reaction between solid ammonium chloride and solid…

A: Given, 2NH4Cl(s) + Ba(OH)2⋅8H2O(s) → 2NH3(aq) + BaCl2(aq) +10H2O(l)   ∆H = 54.8 kJ mass of NH4Cl…

Q: Hydrogen cyanide, HCN, is prepared from ammonia, air, and natural gas ( CH4) by the following…

A: The balance chemical reaction :  2NH3(g) + 3O2(g) + 2CH4(g) ---Pt---> 2HCN(g) + 6H2O(g)  Mass of…

Q: Write a balanced chemical equation based on the following description: solid tetraphosphorus (P₄)…

A: The objective of the question is to write a balanced chemical equation for the reaction of solid…

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

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Q: Balance the chemical equation below using the smallest possible whole number stoichiometric…

A: The unbalanced chemical reaction is: Si4H10l+O2g→SiO2s+H2O(l)

Q: If sodium peroxide is added to water, elemental oxygen gas is generated, consider this unbalanced…

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

A: Neutralization reaction: The reaction of an acid with a base to form salt and water is called…

Q: Balance the chemical equation below using the smallest possible whole number stoichiometric…

A: The given skeletal chemical equation: Ca3PO42 (s) + SiO2 (s) + C (s) → CaSiO3 (s) + P4 (s)  + CO (g)…

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

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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".