A mixture of KCIO3 and KCl with a mass of 0.950 g was heated to produce 02. After heating, the mass of residue was 0.840 g. Assuming all the KCIO3 decomposed to KCl and O₂, calculate the mass percent of KCIO3 in the original mixture. % KC103 M W 7 3 e d C % Sin $ 4 I 5 t D.O 6 hp y Ili & 7 h u 8 j 9 k

Q: Name the iupac

A: In this question, we will give the name of the IUPAC for the given compound structure.  You can see…

Q: A reaction occurred upon mixing 2.23 g of AgNO3 (aq) with 2.04 g of Na₂S (aq). At the end of the…

A: The question is based on the concept of reaction stoichiometry.We need to identify the mass of…

Q: A mixture of NaCl(s) and BaCl2(s) weighing 2.86 grams is dissolved in water. When AgNO3(s) is added…

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Q: 2.Iron ore is impure Fe2O3. When Fe2O3 is heated with an excess of carbon (coke), metallic iron and…

A: Weight of sample = 938kg = 938000g Pure iron in sample = 523kg Assuming that impurities donot…

Q: An iron ore sample contains Fe2O3 plus other impurities. A 752-g sample of impure iron ore is heated…

A: Given details, The balanced chemical equation, Fe2O3(s) + 3C(s) → 2Fe(s) + 3CO(g) The mass of ore =…

Q: So if I have 314.61 mL of a 0.562 M NaOH solution, how many moles of NaOH do I have?  Enter your…

A: The concentration of a solution is defined as “the amount of solute present in the solvent of the…

Q: Write the balanced NET ionic equation for the reaction when aqueous BaCl and aqueous (NHa)2SOa are…

A: Balanced molecular equation for aqueous BaCl2 and aqueous (NH4)2SO4 to give aqueous NH4Cl and solid…

Q: Barium metal was quantitatively precipitated from a 1.52 g sample of BaCl2-2H2O. The mass of the…

A: Given: Mass of the sample BaCl2.2H2O =1.52g Mass of Barium collected = 0.844g

Q: A mixture is 19.9% NaCl, 21.0% CaCl2, and 59.1% NaBr. What mass of the mixture contains 0.485 moles…

A: mass of the mixture that contains 0.485 moles of chloride ions moles of sodium ions present in 24.0…

Q: If 1.800 g of aluminum reacted with an excess aqueous HCl to produce 8.894 g of aluminum chloride.…

A: Answer:- firstly a balanced chemical equation is written then using the mass , mass of Al and cl is…

Q: Balance the following chemical equation. 1. Al2(SO4)3 + Ca(OH)2 – Al(OH)3 + CaSO4haheTni neeerg…

A: We need to balance the given equations.

Q: Molarity is a concentration term that relates moles of solute and total volume. We use the symbol M…

A: Molarity is simply calculated using the formula Molarity (M) = (Number of mole of solute) /…

Q: The zinc in a 1.199 g sample of a foot powder was precipitated as ZNNH,PO4. Strong heating of the…

A: Given :  Mass of foot powder = 1.199 g  Mass of Zn2P2O7 produced = 0.4089 g

Q: A sample of ore containing manganese weighed 1.2354 grams. This sample was heated in a solution of…

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Q: Write a balanced chemical equation based on the following description: solid cesium reacts with…

A: 6Cs (s) + 2 CsNO (s) -------> 4Cs2O (aq) + N2(g)

Q: An unknown mass of NasPO4(s) is dissolved in water to form 50.00 mL of solution. This is Solution A.…

A: Let the mass of Na3PO4 dissolved = X gm Molar mass of Na3PO4 = 163.94 gm Number of moles of Na3PO4 =…

Q: You are given a solid that is a mixture of Na2SO4 and K2SO4. A 0.205 gram sample of the mixture was…

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Q: A 249.3-g sample of ground water is analyzed for calcium. The Ca2+ in the sample is first…

A: Given the mass of groundwater sample taken for analysis = 249.3 g  mass of Ca2P2O7 precipitate…

Q: If a sample of coke is 95% carbon by mass, determine the mass of coke needed to react completely…

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Q: rock is to precipitate the phosphorus as MgNH4PO4, which is then heated to tum it into Mg2P2O7. What…

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Q: A mixture of CaCO₃ and CaO weighing 0.693 g was heated to produce gaseous CO₂. After heating, the…

A: Molecular mass The molecular mass is the mass of a given molecule. It is measured in Daltons. The…

Q: If you mass 0.430 g of Co(NO3)2 x 6H2O and dissolve it in water, what further information would you…

A: A. Since, moles = mass/molar mass we need molar mass of Co(NO3)2.6H2O to calculate moles.

Q: One way to analyze for the amount of phosphorus in a rock is to precipitate the phosphorus as…

A: Given the mass of the rock sample = 2.832 g Percent of Ca3(PO4)2 = 86.52% => mass of Ca3(PO4)2 in…

Q: A mixture of butene, C4H8, and butane, C4H10, is burned in air to give CO2 and water. Suppose you…

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Q: What mass of iron (Fe) can be obtained from 3.80 g iron (III) oxide (Fe₂O3) reacting with ex- 12…

A: This question belong to some basic concept of Chemistry that is Mole Concept. First balance the…

Q: Mass NaHCO36.9341 5. Calculate the moles of NaHCO3 in the sample and record the data below. 0.0825…

A: Mass of sodium bicarbonate dissolved= 6.9341 g  Volume of the solution= 0.05 L  Density of the…

Q: An unknown mass of Na3PO4(s) is dissolved in water to form 50.00 mL of solution. This is Solution A.…

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Q: A 0.772 g sample of a mixture containing only NaBr and CaBr2 is dissolved in water. An excess of an…

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Q: A mixture containing only FeCl3 and AlCl3 weighs 10.95 g. The chlorides are converted to the hydrous…

A: Weight of chloride mixture = 10.95g Weight of oxide mixture = 5.62g Molecular weight of FeCl3 is…

Q: ml of 0.3 normali (hydrochloric acid) was taken to prepare a solution with a concentration of 0.09…

A: The concentration of a solution is the amount of solute present in a given solvent at a particular…

Q: A 15.00g solid mixture containing Ca(OH)2, among other non-basic components, was neutralized with…

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Q: 17. Consider the following chemical reaction: CaO(s) + H2O(1) ---------> Ca(OH)2 (aq) if 1.00 g…

A: No of moles of CaO = Mass/Molar mass = 1.00g/(56.08g/mol) =0.01783moles No of moles of H2O =…

Q: 2. A 1.1324 g sample of an iron ore is dissolved in acid. The iron is oxidized to a +3 state and is…

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Q: A mixture of butene, C4H8, and butane, C4H10, is burned in air to give CO2 and water. Suppose you…

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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".