Vanadium(III) oxide can be prepared by reaction of vanadium(IV) oxide with hydrogen at high temperature: 2VO2 + H2V2O3 + H2O The reaction of 406.9 g of VO2 with excess H2 yields 327.0 g of V2O3. Calculate the theoretical yield of V2O3 (assuming complete reaction) and its percentage yield.

Q: A procedure to synthesize [Co(NH3)5Cl]Cl2 requires 1.5 mol NH3, 0.10 mol H2O2, and 0.60 mol HCl. The…

A: The balanced reaction given is, => Co2+ (aq) + n NH3 (aq) + 3 Cl- (aq) + 0.5 H2O2 (aq) →…

Q: Calculate the theoretical yield (mass in grams) of the aluminium sulphate produced.

A: Aluminium sulphate is prepared by                     2 Al + 3 H2SO4 → Al2(SO4)3 + 3 H2↑molar mass…

Q: Give some examples of Silicates?

A: Examples of silicates: Quartz, feldspar, mica, amphibole, pyroxene, and olivine. Silica tetrahedra.

Q: Calculate the equilibrium constant, K , at 25.0 °C for each of the reactions. Use the thermodynamic…

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Q: 195 kg of H3PO4 was extracted from 310 kg of natural phosphorite. Natural phosphorite Calculate the…

A: Molecular formula of calcium phosphate is Ca3​(PO4​)2​.Its molar mass is 3(40)+2(31)+8(16)=310…

Q: An oxide of gadolinium contains 86.76 mass % Gd. What is its empirical formula?   Possible Answers:…

A: Given that the oxide of Gadolinium contains 86.76 mass percent Gadolinium. Then the mass percent of…

Q: When 6.0 g of aluminum reacts with an excess of molecular bromine (Br2), 50.3 g of aluminum bromide…

A: Balanced Equation of the reaction 2 Al (s) + 3 Br2 (l) -------> 2 AlBr3 (s)

Q: Calculate the theoretical number of moles of sulfate that could be produced from 0.1 g of sulfur, if…

A: Given mass of sulphur = 0.1 g  Molar mass of sulphur = 32 g.mol-

Q: What is the mass percent of water in Zn(NO3)2·6 H2O?

A: First calculate the mass of water.

Q: What mass in grams of tin would be required to completely react with 1.65 L of 0.750 M HBr in the…

A: Mole is defined as mass of substance divide by it's molar mass

Q: Vanadium can be obtained by processing VO2 Which is 61.42% vanadium  and 38.58 % Oxygen. What mass…

A: Provided %of V in VO2= 61.42% Provided % of oxygen in VO2= 38.58% Let (w) mass of VO2 is needed to…

Q: You started your preparation of common alum with 1.4971 g of aluminum foil. What is the theoretical…

A: Formula of alum is KAl(SO4).12 H2O Molar mass is 474.38 g/mol We have to calculate theoritical…

Q: Write the chemical formula for chromium(III) oxide

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Q: Write a balanced chemical equation based on the following description: aqueous iron (lll) choride…

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Q: What is the oxidation state of each element in SO2−4?

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Q: During the 1950s, pentaborane-9 was tested as a potential rocket fuel. However, the idea was…

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Q: For the next 3 items: A 0.982 g sample of impure Al:(CO:)s (MW = 233.99) was mixed with excess HCI.…

A:

Q: Vanadium can be obtained by processing VO2 Which is 61.42% vanadium and 38.58 % Oxygen What mass of…

A: The mass percent of vanadium in vanadium(IV) oxide is = 61.42 % The required mass of vanadium is =…

Q: Write the chemical equation of the thermite reaction, in which iron(III) oxide is reduced by…

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Q: 2. How many grams of water will be produced when 0.0155 moles of hydrogen gas react completely with…

A: Here we have to calculate the mass of water produced by the complete reactions of 0.0155 moles of H2…

Q: The oxidation state of chlorine in CIO is: O+1 -3 +3 -1

A: Oxidation state:- the total number of electron that an atom either gain or loses in to form chemical…

Q: The aluminium in a 1.2 g sample of impure NH4Al (SO4)2 was precipitated as hydrous Al2O3. The…

A: The number of moles is defined as the ratio of the mass of a substance to its molar mass. Number of…

Q: DRAW a covalent bond for PH3 and SiO2

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Q: Chlorine is used to make bleach solutions containing 5.25% NaClO (by mass). Assuming 100% yield in…

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Q: 2 V2O5  +  5 Si →  4 V +  5 SiO2 Given the above balanced equation, calculate the number of grams…

A: Given , Mass of V metal = 476 g

Q: Vanadium can be obtained by processing VO2 Which is 61.42% vanadium and 38.58 % Oxygen. What mass of…

A: The answer to the following question is-

Q: List some properties of germanium, tin, and lead. Predict the formulas of the compounds formed when…

A: Discussing some properties of germanium : It exists in traces and is mainly recovered from flue…

Q: Write the balanced chemical equation for the reaction between iodate and bisulfite. Does the order…

A: The reaction between iodate and bisulfite in acid medium produces iodine. Solutions A (iodate) and B…

Q: Consider the balanced reaction: 2Cr3+(aq)+3PbO2(s)+6H2O(l)→2CrO42-(aq)+3Pb2+(aq)+4H3O+ (aq) a.Which…

A: Since you have posted a question with multiple sub-parts, we will solve first three subparts for…

Q: (MW = 44 g/mole) was collected on absorbent and found to weigh 0.1673-g. Calculate the percentage of…

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Q: Answer the following. a) Balance the net ionic equation below for the reaction under basic…

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Q: Write out balanced chemical equations for the synthesis of a spinel from the corresponding oxide…

A: A reaction will be a balanced chemical reaction if it has an equal number of atoms on both sides of…

Q: Write the molecular equation for the reaction of iron(III) bromide with potassium carbonate.

A: molecular reaction of iron(III) bromide with potassium carbonate.

Q: Write the complete balanced equation for the combustion of barium metal. And state which substance…

A: Combustion reaction can be described as a chemical reaction in which the substance reacts with…

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.