Thin film of silicon , Si is used for fabrication of electronics components. What mass of SiH4  is required to prepare 0.2173g of Si ? EQ: SiH4--------> Si + 2H2

Q: Silicon carbide, SiC, is used as an abrasive for many industrial processes. If you want to produce…

A: Given-> Weight of SiC = 1.00 kg = 1000 gm (1 kg= 1000g)

Q: Diiodine pentoxide is used in respirators to remove carbon monoxide from air. I2O5(s) + 5CO(g) →…

A: The balanced reaction taking place is given as, => I2O5 (s) + 5 CO (g) ------------> I2 (s) +…

Q: How many metric tons of carbon are required to react with 9.78 metric tons of Fe2 O3 according to…

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Q: In the room, the police also found a suspicious amount of CO2 in the air, which is produced when…

A: Combustion reactions of methanol is 2CH4O+3H2O→2CO2+4H2O 2 mole of methanol is producing 2 moles of…

Q: How many grams of iron are created from 32 grams of Al? 2AI + 3FEO --> 3Fe + Al203 2702.4 B 48556.8…

A: Given the chemical reaction as follows,2Al+3FeO→3Fe+Al2O3amount of Al for reaction =32 gramwe are…

Q: . In a blast furnace, iron (III) oxide reacts with coke (carbon) to produce molten iron and carbon…

A: By the balanced given reaction,  1 mole of Fe2O3 forms 2 mole of Fe .  Now, given moles of Fe2O3 = =…

Q: Syngas is a mixture of carbon monoxide, carbon dioxide, and water vapor that is used for making…

A: Balance Chemical equation means number of atoms or ions should be equal in both side (reactant and…

Q: How many metric tons of carbon are required to react with 9.14 metric tons of Fe2 O3 according to…

A: Note : Since you have posted multiple questions, we are entitled to answer the first only. Please…

Q: A mixture of BaO and CaO weighing 2.2120g is transformed into mixed sulfates, BaSO4 and CaSO4…

A: We have to find the number of grams of CaO and BaO

Q: 2. An important source of hydrogen and oxygen, used as rocket fuels, is the decomposition of water…

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

A: The balanced equation is given below.

Q: The multistep smelting of ferric oxide to form elemental iron occurs at high temperatures in a blast…

A: Introduction:  We have to write the reaction for iron smelting process. Also ,we have to calculate…

Q: A mixture contains NaHCO3 together with unreactive components. A 1.56g sample of the mixture reacts…

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Q: Urea (CH,N2O) is a common fertilizer that can be synthesized by the reaction of ammonia (NH3) with…

A: %Yield = (Obtained amount/calculated amount)x 100 Number of moles = Mass/molar mass Given that:'…

Q: If 2.50 kg of copper ore (Cu3FeS3) is reacted with 0.60 kg of oxygen gas and the process has an…

A: Theoretical yield is the maximum amount of product that could be formed from the given amount of…

Q: A pure sample of Epsom salt was oven dried and loss 51.17% of its mass due to loss of water of…

A: To calculate the mole ratio, we would first calculate moles of both magnesium sulfate and water in…

Q: Elemental phosphorus is used in the semiconductor industry. It can be obtained from an ore called…

A: We have to calculate the mass of fluoroapatite needed .

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

A: 82% = 1.0 X 103 Kgyield of the reaction is = 82%Thus from 100Kg of Aluminium oxide, 82Kg of…

Q: nitrogen gas to produce ammonia. How many kilograms of hydrogen would be required to react…

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Q: How many metric tons of carbon are required to react with 7.88 metric tons of Fe2O3 according to the…

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Q: Ethyl alcohol (C2H5OH), also called grain alcohol, can be made by the fermentation of glucose:…

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Q: Nitric oxide is made from the oxidation of ammonia. What mass of nitric oxide can be made from the…

A: A mole of a substance weighs its molar mass  So Let The mass of substance be m and its molar mass be…

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

A: The given equation -  Calculate the number of moles of Cl2 - Now calculate the moles and mass for…

Q: Sulfuric acid can be manufactured using the reaction: 2 S(s) + 3 O2(g) + 2 H2O(l) → 2 H2SO4(aq) If…

A: Given : 2 S(s) + 3 O2(g) + 2 H2O(l) → 2 H2SO4(aq) Sulfur consumed = 65 metric tons To find : metric…

Q: could you please help me with this, this is off of my review packet for my final.AND MY FINAL IS AT…

A: A balanced chemical equation or reaction is the one in which the total number of atoms for each…

Q: The low-grade iron ore taconite, which contains Fe3O4, is concentrated and made into pellets for…

A: Given: Mass of taconite pellet = 1 ton Mass of iron = 545 lb To Calculate: percentage of the pellets…

Q: Another hydrated compound containing Sodium, Boron and Oxygen was investigated.  250.00 g of the…

A: When NawBxOy×Z H2O is heated, the water molecules attached are removed and then decomposed to give-…

Q: Gypsum bandages are used to fix fractures. When gypsum hardens, a reaction occurs…

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Q: Which graph corresponds to this reaction? NH3(g) + HCI(g) 5 NH,CI(s) D AG AG AG AG +

A: In this question we are given a chemical reaction and we have to choose the correct graph between…

Q: TCDD, also called dioxin (C12H4Cl4O2, molar mass 322.0 g/mol), is a potent poison. The average…

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Q: The following consecutive reaction set is used as the basis of a method for producing nitric acid.…

A: The most common process for manufacturing nitric acid is Ostwald process. The process was first…

Q: If a fertilizer bag indicated that it contained 35 percent K2O, a. What does the analysis look like…

A: The percentage composition can be determined based on the molecular formula of the compound. The…

Q: 4 NH3(g) + 5 O2(g) -----------> 4 NO(g) + 6 H2O(g) What mass of nitric oxide can be formed from a…

A:

Q: Determine the mass of calcium hydroxide produced when calcium carbide (CaC2) reacts with 0.64 grams…

A: Given , Mass of water = 0.64 g Molar mass of water = 18.0 g/mol Moles of water = mass / molar mass…

Q: The molecule of the week is Tetraethyl orthosilicate (TEOS) of which 120,000 metric tons (1 metric…

A: The compound Tetraethyl orthosilicate (TEOS) has a molecular formula of C8H20O4Si

Q: Consider the production of copper metal from copper ore: 2 Cu3FeS3 (s) + 7 O2 (g) → 6 Cu (s) + 2…

A: The given balanced equation is: 2 Cu3FeS3 (s) + 7 O2 (g) ------>  6 Cu (s) + 2 FeO (s) + 6SO2 (g)…

Q: An alloy of a metal containing Al, Cu and Ge is to be produced as follows: 10g of Cu is mixed with…

A: From the given information: Mass of copper in alloy = 10g Molar mass of Copper = 63.6 g/mol   Number…

Q: c) A methane hydrate has the formulae CH4•XH2O. Methane makes up 15% of the mass of 'methane…

A: (c) Let assume, the mass of methane hydrate (CH4·xH2O) is Y g/mol. The mass of methane (CH4) is 15…

Q: A three-step process for producing molten iron metal from Fe2O3 is: 3Fe2O3 + CO → 2Fe3O4 + CO2…

A: The moles of iron produced from 390.kg of iron oxide can be calculated as

Q: Cocaine (C17H21O4N) is a natural substance found in the leaves of the coca plant, which has been…

A: -

Q: chemical reaction is shown here: C51H98O6 + 3KOH → (Triglycerides ) C3H5(OH)3 + 3C16H31O2K ( Soap)…

A: The theoretical yield of the soap is 253.33g of soap 806 g of C51H98O6 reacts with 168 g of KOH .…

Q: 1) Copper metal can be obtained from copper ore (copper (I) oxide) by heating the ore with charcoal…

A: Solution :    Synthesis or combination reaction :         Synthesis or combination reactions are…

Q: 4) Zinc oxide can be produced by the following reaction: 2 Zn (s) + O2 (g) 2 ZnO (s) - There are…

A: Given-> Surface area = 5500 cm2 For 1 cm2 surface required atom of Zn = 1.9 × 1020

Q: 1. The final step in the production of chromium metal consists of the reaction of chromium (III)…

A: Reactant reacts in stoichiometric terms to form products.   Given reaction,    2 Cr2O3     +   3 Si…

Q: 3) A mineral of calcium with the formula CaCO3¤Ca(OH)2 was analyzed by heating in a crucible, and…

A: Mass of sample CaCO3.Ca(OH)2 = Mass of crucible + sample - mass of empty crucible   = 26.12 - 23.45…

Q: A chemical plant uses electrical energy to decompose aqueous solutions of NaClNaCl to give Cl2Cl2,…

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

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: Oxygen bleach acts in the release of oxygen which best works in hot water mixture. Which of the…

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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.