What is the mass percentage of Na in Na2SO3?

Q: If 4.1 g of Cr is heated with 9.3 g of Cl2 what mass CrCl3 will be produced?

A: Mass of Cr = 4.1 g Mass of Cl2 = 9.3 g The molar mass of Cr = 52 g/mol The molar mass of Cl2 =71…

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: Determine the oxidation state of: 1. Cr in KCr2O7

A: Calculation of  oxidation state of chromium in given potassium dichromate compound. Oxidation state…

Q: What is the mass percentage of C in caffeine, C18H10N4O2

A: The mass percentage is calculated by the formula, mass%=mass of elementmass of compound×100

Q: What is the percentage composition of Cr2O3

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Q: Indicate the oxidation state of every individual element in the following compounds. h. SO3 k.…

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Q: When the follow equation is balanced, what coefficient would fall before the formula "HI"? HI +…

A: The given reaction is, HI + H2SO4 → H2S + I2 + H2O.

Q: What mass of Glauber’s salt must be used to provide 1.00 mol of sodium sulfate?

A: The chemical formula of sodium sulfate is Na2SO4. The chemical formula of Glauber's salt is…

Q: Potassium iodate solution was prepared by dissolving 1.022 g of KIO3 (214.00 g/mol) in a 500-mL…

A: Molarity of a solution = Number of moles of solute/ volume of solution in L Number of moles of a…

Q: How many moles of manganomanganic oxide will react with 5.33 x 10^25 atoms of aluminum?

A: To solve such questions, prior knowledge of the mole concept and chemical equations is necessary.…

Q: What is the weight of lead nitrate Pb(NO3)2 (molecular weight = 331 g/mol) that %3D must be…

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Q: Calculate the percentage of NaOCl Mass of NaOCl in sample: 0.8933g Net Volume of Na2S2O3: 24mL…

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Q: Determine the oxidation state of nitrogen in NO3 -

A: To determine the oxidation state of nitrogen in NO3 -: Assume oxidation state of N = x The oxidation…

Q: The oxidation state of chlorine in CIO is O A) -5. O B) +5. O C) +7. D) 0.

A: Oxidation state is the total number of electrons that an atom either gains or loses in order to form…

Q: 1) LIAIH, (excess) 2) H,O 9) H

A: We'll answer the first question since the exact one wasn't specified. Please submit question…

Q: How many grams of KClO3 are required to form 7.09 g of O2?

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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: When strongly heated, boric acid breaks down to boric oxide and water. What mass of boric oxide is…

A: Solution Boric chemical compound, the pure variety of B2O3, may be a laborious glassy material,…

Q: What is the mass percentage of iodine in a solution containing0.035 mol I2 in 125 g of CCl4?

A: Given Moles of I2 = 0.035 mol   and mass of CCl4 = 125 g Molar mass of I2 = 253.8 g/mol Molar mass…

Q: What mass, in grams, of C2H2 is needed to form 212.9 kg of CO2? Assume excess oxygen.    2C2H2(g)…

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Q: what is a balanced equation for the reaction of nonane,C9H20 , with oxygen O2?

A: The reaction of nonane with oxygen is a combustion reaction.  In combustion reaction, a hydrocarbon…

Q: What is the mass percent of phosphorus in P5O2?

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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: how many grams  of Ag2CrO4 can be produced from 1.200 g of AgNO3?

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Q: What is the mass percentage of C in caffeine, C₈H₁₀N₄O₂?

A: The concentration of an element in a compound or mixture is represented using mass percent. The mass…

Q: What is the mass percentage of C in CH₃CH₂OH? Provide an answer to two decimal places.

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Q: What mass is Na2CO3 is needed to produce 5.Og of CO2

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Q: (i) How is HNO3 prepared commercially?(ii) Write chemical equations of the reactions involved.(iii)…

A: 1) HNO3 is prepared commercially by the Ostwald's process. It's commercial production starts with…

Q: What is the mass in grams of carbon dioxide that would be required to react with 79.7 g of LIOH in…

A: The given chemical reaction is: 2LiOH(s)+CO2(g)→Li2CO3(s)+H2O(l) According to the above balanced…

Q: What is the mass percentage of Na in NaF?

A: The mass percent of an element is defined as the mass of that particular element present in the…

Q: How many grams of Ag2CrO4 can be produced from 1.200g of AgNO3?

A: Given, amount of AgNO3 =1.200 gramwe are asked to calculate the  amount of Ag2CrO4 produced from…

Q: How many moles of lithium hydroxide would be required to produce 83.5 g of Li:COs in the following…

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Q: What is the mass percentage of C in caffeine, CsH1oN4O2? Provide an answer to two decimal places.

A: Mass percentage of Carbon in Caffeine is 6.18%

Q: A metal sulfide M 2 S contains 14.3% of sulfur by massWhat is the identity of the metal in this…

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Q: Determine the oxidation state of Sn in SnSO4

A: O is almost always -2. There are 4 of them so you have a -8. The SO4 ion has a -2 oxidation, so the…

Q: What is the mass percentage of C in codeine, C18H21NO3?

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Q: Calculate the percentage composition of Ca in CaSO4.

A: Molecular weight of CaSO4 = 136.14g/mol Molecular mass of calcium = 40.078g

Q: 3. How many grams of sodium metal will be produced from 140g of NaN3? O 49.5g O 215g 0 42g O 99E

A: • No. of moles=Gives massMolar mass• Mass = No. of moles × Molecular weight• Molar mass of NaN3 = 65…

Q: How many grams KCl can be produced from 179.88g  KClO3 ?

A: Mass of KClO3=179.88g Molar mass of KClO3 =122.55g/mol Molar mass of KCL =74.55g/mol Mass of KCl=?

Q: What mass of HF would be produced from 4.6L of f2 gas w

A: Mass of HF produced from 4.6L of f2 gas would be given by

Q: What is the equation for the reaction of Mg(s) with CuSO4(aq)?

A: Given :- Mg(s) + CuSO4(aq) →  To complete :- above equation

Q: What mass of barium sulfate can be produced by complete reaction of 27.4 g of Na2SO4?

A: Introduction: The amount of a substance can be measure in moles unit in chemistry. It is widely used…

Q: How many grams of water would be lost if a 8.000 gram sample of PtCl4·5H2O were heated?

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Q: What is the molecular weight of Cr(NO3)3 ?

A: Mass of chromium is 51.9961 uMass of nitrogen is 14.0067 uMass of oxygen is 15.999 u

Q: What mass of O2 can theoretically be obtained from 1.67 g of a KClO3/KCl mixture which is 75.0% by…

A: Here in the given question the mixture of KClO3 and KCl is =1.67 gram. but mass of KClO3  is 75% of…

Q: Consider the series of reactions to synthesize the alum (KAl(SO4 )2 · xH2O(s)) Assuming an excess of…

A: Alum having general formula KAl(SO4 )2 · 12H2O(s) to synthesis alum reaction is

Q: You need to calculate the number of P₄ molecules that can formfrom 2.5 g of Ca₃(PO₄)₂. Explain how…

A: Solution;-  No. of atoms = No. of P atoms in 1 P4 molecule × No. of molecules No. of molecules =…

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.