An element X has a dibromide with the empirical formula XBr2 and a dichloride with the empirical formula XCl2. The dibromide is completely converted to the dichloride when it is heated in a stream of chlorine according to the reaction XBr2 + Cl2→ XCl2 + Br2 When 1.500 g XBr2 is treated, 0.890 g XCl2 results.(a) Calculate the atomic mass of the element X.(b) By reference to a list of the atomic masses of the elements, identify the element X.

Q: A sample of a substance with the empirical formula XCl₂ weighs 0.5984 g. When it is dissolved in…

A: Answer:When solutions of two different substances are mixed and formation of precipitate takes place…

Q: A sample of a substance with the empirical formula XCl3 weighs 0.5706 g. When it is dissolved in…

A: XCl3 + 3 AgNO3 -> 3AgCl + X(NO3)3 According to the above balanced equation 3 x number of moles of…

Q: When you react 3.9267 grams of Na2CO3 · nH2O with excess HCl(aq), 0.6039 grams of a gas is given…

A: Here we are required to find the number of water molecule attached to Sodium carbonate

Q: Upon reaction of 1.27 g of copper sulfate with excess zinc metal, 0.377 g copper metal was obtained…

A: No. of moles of the product will form is depends upon mole ratio used in the Molecular reaction.…

Q: If 6.1 × 10²⁵ molecules of CO₂ are produced in a combustion reaction, what is the mass in kg of CO₂…

A: Given: 6.1 × 10²⁵ molecules of CO₂ are produced in a combustion reaction.  To determine : The mass…

Q: Select the final product of the following reaction. 1 NAOCH,CH, 2. dil. H,O*, 0°C OCH;CH3 OCH,CH OCH…

A: The given reaction is an example of Claisen condensation where two esters combine in presence of a…

Q: (a) A compound MX2 is formed from the M²+ and X ions. The compound contains 86.8% of X by mass. In a…

A: a) Given that,molecular formula of the given =  MX2 The percentage of X in the compound= 86.8% In a…

Q: For the following reaction, 41.2 grams of iron are allowed to react with 21.0 grams of oxygen gas.…

A: Given,the reaction:iron (s) + oxygen (g)  iron(III)oxide (s)mass of iron = 41.2 gmass of oxygen =…

Q: Mg(s) + 2 HCl(aq) −−−→ MgCl2aq) + H2(g)   given that the mass of magnesium is 0.030 g, find the…

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Q: Morphine (C₁₇H₁₉NO₃) is a painkiller in the opiate family. A sample of morphine was discovered that…

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Q: (a) cyclobutane,     Molar Mass = (b) cobalt(III) chromate, Co2(CrO4)3   Molar Mass =

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Q: Many metals react with halogens to give metal halides. For example, iron reacts with chlorine to…

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Q: Magnesium hydroxide (Mg(OH) 2), as "Milk of Magnesia" can be used to neutralize excess stomach acid,…

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Q: Iron(III) oxide reacts with carbon monoxide according to the equation: Fe,0;(6) + 3 CO(g) – 2 Fe(s)…

A: The given reaction is, Fe2O3(s) + 3CO(g)  → 2Fe(s) + 3CO2(g)  Given that: mass of Fe2O3 = 22.55 g…

Q: To determine the amount of platinum in an alloy, a 8.565 g8.565 g sample of an alloy containing…

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Q: Suppose a piece of silver jewelry contains 7.78×1022 atomsatoms of silver (AgAg).

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Q: Consider the reaction of solid P4 and chlorine gas to form gaseous phosphorus trichloride. a) Write…

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Q: Table salt, NaCl(s),NaCl(s), and sugar, C12H22O11(s),C12H22O11(s), are accidentally mixed. A 5.50…

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Q: An organic compound consists of carbon, hydrogen and sulfur only. The percentage of carbon by mass…

A: For calculation of Molecular formula, first of all we calculate the % of each atom , empirical…

Q: The Ostwald process is used commercially to produce nitric acid, which is, in turn, used in many…

A: We are given that both the reactants in the Ostwald's process which is ammonia and oxygen are taken…

Q: 12.00 g of a potassium hydroxide, KOH solution is mixed with 40.00 g of lead (II) nitrate, Pb(NO3)2…

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Q: Consider the reaction: P4(s) + 6Cl₂(g) → 4PC13 (1) Given an initial mass of 15.75 g P4, an excess of…

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Q: A sample of a substance with the empirical formula XCI3 weighs 0.4884 g. When it is dissolved in…

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Q: The reaction of finely divided aluminum and iron(III) oxide, Fe2O3, is called the thermite reaction.…

A: Given,  Mass of Al = 500.0 g  Mass of Fe2O3 = 500.0 g  Mass of Fe produces = Actual yield of Fe =…

Q: A mixture was found to contain 1.50g NH4CI, 0.80 g NaCI, and 1.20 g SiO2. What is the percentage of…

A: Given: Mass of NH4Cl = 1.50 g Mass of NaCl = 0.80 g Mass of SiO2 = 1.20 g

Q: In an experiment designed to produce calcium oxide by the chemical reaction: 2Ca + O2 → 2CaO…

A: Given reaction is,  2Ca + O2 → 2CaO Also Given is, 104.5 g of CaO was obtained out of a possible…

Q: How many moles of Al are necessary to form 83.0 g of AIBR, from this reaction: 2 Al(s) + 3 Br,(1) →…

A: For the reaction: 2Al     +   3Br2 →  2AlBr3 2 mol        3 mol         2 mol Given : Mass of AlBr3…

Q: 892.1 grams of isomaltitol, C12H24O11, was combusted in a furnace completely in an excess oxygen.…

A: The yield of water can be calculated as:-

Q: When a sample of solid potassium chlorate is heated strongly, a decomposition reaction occurs. Solid…

A: Mole is calculated by dividing the given mass with molecular mass. When a sample of solid potassium…

Q: Ammonia is produced from the reaction of nitrogen and hydrogen according to the following balanced…

A: Given information,        1.40 × 103 g N24.60 × 102 g H2

Q: The aluminum in a 0.767 g sample of an unknown material was precipitated as aluminum hydroxide,…

A: given: mass of sample of unknown material =0.767 g mass of aluminium oxide produced = 0.143 g…

Q: In air, nitric oxide gas reacts with oxygen to produce nitrogen dioxide, which appears brown in…

A: Nitric oxide reacts with oxygen to produce nitrogen dioxide. The equation for the balanced chemical…

Q: hat are the percentages of carbon, hydrogen, and nitrogen in the compound? What is the empirical…

A: Solution: So this question is from the stoichiometry. We  have general knowledge of formulae for…

Q: Upon reaction of 1.27 g of copper sulfate with excess zinc metal, 0.513 g copper metal was obtained…

A: …

Q: A sample containing only carbon,hydrogen,phosphorus and oxygen is subjected to elemental analysis.…

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Q: Assume 100% yield. a) 10.0 g of copper sulfate are formed. b) H2SO4 is the limiting reagent. c)…

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Q: For the following reaction, 99.2 grams of perchloric acid (HClO4) are allowed to react with 27.3…

A: 12 HClO4 (aq) + P4O10 (s) →4 H3PO4 (aq) + 6 Cl2O7 (l) Amount of products depend on the limiting…

Q: A mixture of CuSO4 · 5H2O and MgSO4 · 7H2O is heated until all the water is lost. If 5.047 g of the…

A: A mixture of CuSO4·5H2O & MgSO4·7H2O is heated until all the water is lost. 5.047 g of the…

Q: An organic compound consists of carbon, hydrogen and nitrogen only. Complete combustion of a 150. mg…

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Q: Sodium reacts with chlorine to form sodium chloride. In an experiment a student reacted 1.50 g of…

A: A balanced chemical reaction is a reaction that contains the same number of atoms on the reactant…

Q: Silicon tetrachloride (SiCl4 ) can be prepared by heating Si in chlorine gas:  Si(s) + 2Cl2(g) ->…

A: Molar mass of Cl2 = 70.9 g/mol

Q: Cobalt(II) chloride forms several hydrates with the general formula CoCl2·xH2O, where x is an…

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Q: 3.) Tetraphosphorus decaoxide reacts with water to form phosphoric acid, a major industrial acid. In…

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Q: PCI, (s) + H2O(1) → POCI3 (1) + 2HCI(aq) When 64.23 g of phosphorus pentachloride reacts with excess…

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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".