2 Al2O3(l) à4Al(s) + 3O2(g)   If there are 15.00g of aluminum oxide react, how many grams of Al are produced? Assume theoretical yield.     7.938 g     7.9 g     11.91g      12 g

Q: KOH(s) + CO₂(g) → K₂CO₃(s) + H₂O(l) Calculate the mass in grams of KOH that will be required to…

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Q: How many atoms of carbon are contained in 47.6 g of Al2(CO3)3? The molar mass of Al2(CO3)3 is 233.99…

A: First convert the given grams of Al2(CO3)3 to moles.  Moles=MassMolar mass=47.6 g233.99 g/mol=0.2034…

Q: Starting with the following equation, Fe₂O₃(s) + Al(s) → Fe(l) + Al₂O₃(s) calculate the moles of…

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Q: How many grams of NO can be formed from 4.96 moles of NO₂ in the reaction below? 3 NO₂ (g) + H₂O (g)…

A: Stoichiometry is mainly based on the calculation of moles and volumes. These two values are used to…

Q: 7.) Considering the equation 2H₂O(g) → 2 H₂ (g) + O₂(g) Calculate how many grams of 0₂ (9) Can be…

A: We will use the balanced reaction to calculate the grams of O2 produced. We can see from the…

Q: What is the mass in grams of H2 that can be formed from 44.8 grams of NH3 in the following reaction?…

A: The given reaction shows that two moles of ammonia reacts to form three moles of hydrogen and one…

Q: What the percentage yield of carbon dioxide

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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: grams

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Q: 3 that can be formed in the

A: Mass of N2 = 5.973 g Mass of F2 = 8.674 g Molar mass(MM) of N2 = 28.0 g/mol Molar mass(MM)  of F2 =…

Q: How many grams of H₂ can be formed from 54.6 grams of NH₃ in the following reaction? 2 NH₃(g) → 3…

A: Given that the mass of ammonia is 54.6 g which decomposes to form nitrogen gas and hydrogen gas. The…

Q: How much aluminum oxide and how much carbon are needed to prepare 445 g of aluminum by the balanced…

A: Answer:Number of moles in sample of a substance is always equal to the ratio of the mass of sample…

Q: The Haber-Bosch process involves the combination of nitrogen and hydrogen at high temperatures in…

A: Answer:Reagent that exhuast first in the chemical reaction and decides the yield of product is…

Q: How many grams of Fe is needed to react with 35.0 g of sulfuric acid in the following reaction?…

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Q: How many grams of mercury (Hg) are produced from 87.6 grams of mercury(II) sulfide? 4 HgS + 4 CaO…

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Q: If you react 6.7g of iron oxide with 4.5g of aluminium, what is the theoretical yield of aluminium…

A: Given, Mass of iron oxide = 6.7g. Mass of aluminium = 4.5g. The moles of iron oxide and aluminium…

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

A: Combustion of 2.33 g of a hydrocarbon C2H5 in air produces 2.24 g CO, 3.53 g CO2 and 3.61 g H2O…

Q: Consider the following reaction:   10 KNO3(s) + 8 C(s) + 3 S(s) → 2 K2CO3(s) + 3 K2SO4(s) + 6…

A: Given equation: 10 KNO3(s) + 8 C(s) + 3 S(s) → 2 K2CO3(s) + 3 K2SO4(s) + 6 CO2(g) + 5 N2(g)…

Q: How many grams of KClO3 are needed to produce 2.56 grams of O2? 2KClO3 (s)=2KCl (s)+3O2 (g)

A: Amount of given O2 (molar mass = 32 g/mol), n is calculated as follows:

Q: PART I: What mass of potassium fluoride, KF, would be produced from 7.70 grams copper (II) fluoride?…

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Q: what is the percent yield?

A: Number of moles = mass/molar mass  Percent yield =(actual yield/theoretical yield) × 100%

Q: 2 Al2O3(l) à 4Al(s) + 3O2(g) If 2.00 moles of oxygen are to be produced, how many grams of aluminum…

A: On decomposition of 2 moles of Aluminium oxide, 4 moles of aluminium and 3 moles of Oxygen gas is…

Q: Starting with the following equation, Fe₂O₃(s) + Al(s) → Fe(l) + Al₂O₃(s) calculate the moles of…

A: We have given that  Starting with the following equation, Fe2O3(s) + Al(s) ------->  Fe(s) +…

Q: What is the mass in grams of H₂ that can be formed from 43.6 grams of NH₃ in the following reaction?…

A: Molar mass of NH3 = Atomic mass of N + H x 3                                = 14 g/mol + 1 g/mol x 3…

Q: N₂(g) + 3 H₂(g) 2 NH3(g) How many grams of ammonia can I produce from 0.995 grams of hydrogen gas? O…

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Q: Given the following reaction: 4NH3 + 502 → 4NO + 6H20 If the reaction of 1.10 mol of NH3 with 1.10…

A: The given reaction is as follows: 4 NH3+5 O2→4NO+6H2O % yield =experimental yeldTheoretical…

Q: Cryolite, Na3AlF6(s), an ore used in the production of aluminum, can be synthesized using aluminum…

A: All the answers to the given questions have been discussed with the detail explanation and step by…

Q: If you react 6.7g of iron oxide with 4.5g of aluminum, what is the theoretical yield of aluminum…

A: To solve this problem we have to find the limiting reactant first . Then we will  calculate the…

Q: How many moles of Al are necessary to form 28.6 g of AlBr₃ from this reaction: 2 Al(s) + 3 Br₂(l) →…

A: Given , mass of AlBr₃  = 28.6 g Thus, moles of AlBr₃  = mass of AlBr₃ molar mass of AlBr₃  = 28.6…

Q: Part A Consider the following reaction. How many moles of oxygen are required to produce 2.33 moles…

A: Given is , Moles of water = 2.33 mol

Q: What is the mass in grams of oxygen gas that can be produced from 0.251 grams of carbon dioxide?  4…

A: The objective of the question is to find out the mass of oxygen gas that can be produced from a…

Q: Balance the equation: N2(g) + O2(g) → N2O5(g)

A: Simply count the nitrogen and oxygen individually and then proceed further.

Q: Starting with the following equation, Fe₂O₃(s) + Al(s) → Fe(l) + Al₂O₃(s) calculate the moles of…

A: Given :-  Fe₂O₃(s) + Al(s) → Fe(l) + Al₂O₃(s) mass of Fe = 755 g  To be calculated :-  number of…

Q: Silver sulfide, Ag2S, also called argentite, is an economically important silver ore. If a silver…

A: From the molar masses, we can estimate the amount of silver produced per day from Argentine (Ag2S)…

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

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Q: What mass of silver oxide, Ag₂O, is required to produce 25.0 g of silver sulfadiazine, AgC H₂N SO₂,…

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Q: Cryolite, Na3AlF6(s), an ore used in the production of aluminum, can be synthesized using aluminum…

A: The Balanced chemical equation for the synthesis of cryolite is given by

Q: If 345.5 L of hydrogen gas (d = 0.0899 g/L) reacts with an excess of nitrogen gas, what mass of…

A: Number of atoms, ions and molecules present on a given amount can be determined by “Mole Concept”.…

Q: How many grams of oxygen are present in 14.79 g of kaolinite?

A: Given :-  mass of Al4Si4O10(OH)8 = 14.79 g  To calculate :-  mass of O in grams

Q: The phosphorus pentoxide used to produce phosphoric acid for cola soft drinks is prepared by burning…

A: Given, 2.6 g of P4  23.3 g of O2  4.6 g of P4O10

Q: In preparation of ammonia (NH3), the reaction of 7.2 g of H2 with 75 g of N2 produced 36 g of…

A: identify the % yield of ammonia  given data and value  1=  7.2g of hydrogen  2= 75g of Nitrogen  3=…

Q: How many grams of oxygen are contained in 82.4 g of Al2(CO3)3?

A: Given :- mass of Al2(CO3)3 = 82.4 g  To calculate :- amount of oxygen (g) in the given amount of…

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.