What mass of Cu(103)2 can be formed from 0.650 g of CuSO4.5H2O? What mass of KIO3 is needed to convert the copper in 0.2750 g of CuSO4.5H2O to Cu(103)2?

Q: If Cu(NO3)2 + 2 H2O à Cu(OH)2(s) + 2 HNO3(aq)  would any copper ions be produced? Write the net…

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Q: a)Sodium thiosulfate, Na2S2O3, is used as a fixative in photography.  What is the oxidation number…

A: Oxidation state: It describes the extent of oxidation of an atom in a compound . It is an…

Q: balance the chemical equation P4 (s) + O2 (g) --> P2O5 (l)

A: For balancing the chemical equations, first balance the elements that appear only once on each side…

Q: The hardness of water (hardness count) is usually expressed in parts per million (by mass) of CaCO3,…

A: Given,The water sample with a hardness count of 175 mg CaCO3/L

Q: A crystal of the mineral pharmacosiderite, Fe3(AsO4)2(OH)3•5H2O, contains what percent of  oxygen by…

A: The molecular formula of the crystal pharmacosiderite is = Fe3(AsO4)2(OH)3•5H2O One molecule of the…

Q: Balance the following chemical equation (if necessary): 2 BF;(s) + Li,SO;(s) → 2 LİF3(s) + B2S 0,…

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Q: Balance the chemical equation. X... CH(1) + 150₂(g) → 12CO₂(g) + 6H₂O(g)

A: Given is chemical equation. Given equation is of combustion reaction of benzene.

Q: reaction is: Co(s) + HgCl (aq) → COCI(aq) + Hg(1)

A: Given , Mass of Co = 1.25 g Molar mass of Co = 59.0 g/mol Molar  mass of Hg = 200 g/mol Mole =…

Q: Cu + AgNO3 → Cu(NO3)2 + Ag, balanced or not balanced?

A: In balanced equation the number of mole of each atom or molecules at left side must be equal to…

Q: Is the decomposition of CuSO4· 5 H2O a physical or a chemical change? Why?

A: The copper sulfate penthydrate dehydrates to form the clear, anhydrous copper sulfate.

Q: A sample of NaCr(SO₂)₂.10H₂O was heated in a crucible, yielding 1.27 g of the corresponding…

A: The molar mass of NaCr(SO4)2 is = 267 g/mol The molar mass of H2O is = 18.0 g The mass of NaCr(SO4)2…

Q: Consider the precipitation reaction that takes place when a water solution of aluminum nitrate,…

A: On reacting above two aluminium phosphate precipitate and potassium nitrate form as side product.

Q: What does n= if, 3.764 g CuSO4 · nH2O yields 1.585 g of anhydrous Cu(OH)2 after treatment with…

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Q: To a crucible and cover weighing 33.392 g is added a sample of a copper (II) chloride hydrate (CuCl2…

A: Given data, Mass of crucible + cover = 33.392g Mass of crucible + cover + sample = 34.405g Mass of…

Q: A sample of nickel silver contains 18.0% nickel by mass. What mass of nickel silver must be melted…

A: Given: Sample of Nickel Silver contains: 18% Nickel by mass.

Q: (a) Based on the following equation, calculate the mass of calcium phosphate required to produce…

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Q: chlorine

A: according to the chemical reaction equation,  4moles of Cl2 react with = 1mol of CS2  1mol of Cl2…

Q: If 71.0 g of Fe2O3 react with 26.9 g of Al, how much molten Fe can be formed

A: Stoichiometry, in balanced chemical reaction is defined by the ratio at which reactants are reacting…

Q: Ca: (PO,), (s) + Si0,(s) + C (s) → , (s) + CO(g) Ca SiO, (s) + P + co(g) 3 2

A: Balanced chemical equation is given as follows

Q: Enter your answer in the provided box. One of the reactions that occurs in a blast furnace, in which…

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Q: 17. Given the reaction Ss(g) + 802 8SO2(g), the number of moles of sulfur required to form one mole…

A: In the given reaction, one mole of S reacts with eight moles of oxygen to form eight moles of sulfur…

Q: 1.How many moles of CuO can be produced from 1.11 mol of Cu2O in the following reaction?…

A: The amount of substance is usually defined in terms of mole. The mole is the SI unit of the quantity…

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: Starting with the following equation, Fe₂O₃(s) + Al(s) → Fe(l) + Al₂O₃(s) calculate the moles of…

A: For the first question,The mass of Fe produced is 925 grams.The given chemical reaction is .To…

Q: Balance the following chemical equation (if necessary): C,H,O(1) + 0,(g) → H,O(g) + CO,(g) 5 2 2 3.…

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Q: What mass of hydrogen can be produced by reacting 161.9 g of aluminum with hydrochloric acid? The…

A: Stoichiometry describes the link between the number of moles of particles, the number of reactants,…

Q: Balance the following equations a) Ca,P₂(s) + H₂O(1)→ Ca(OH)₂ + PH3 b) Al,C, (s)+ H₂S(g) → CH.(g) +…

A: Balance chemical equation can be define as a reaction in which number of atoms of all the elements…

Q: A sample of soda-lime glass for tableware is analyzed and found to contain the following percentages…

A: Given- % by mass of oxides SiO2 = 72.4% Na2O =18.1% CaO = 8.1% Al2O3 =1.0% MgO = 0.2% BaO = 0.2%…

Q: Balance the following equation: CGH6 (1) + 02 (g)→ CO2 (g) + H20 (g)

A: First balance the carbon atoms then then balance H and O

Q: Balance the equation: Y2O3(s) + SO3(l) → Y2(SO4)3(s)

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Q: d) For the reaction of hydrocarbons in oxygen, C5H12(1) + O2(g) → CO2(g) + H₂O(g) CH3OCH3(g) + O2(g)…

A: A balanced chemical equation contain equal number of atoms of each elements on both sides of the…

Q: How many grams of CuO would be required to produce 22.5 moles of nitrogen gas in the following…

A: The reaction given is 2 NH3 (g) + 3 CuO (s) ------> 3 Cu (s) + N2 (g) + 3 H2O (g)

Q: How much methanol (CH3OH, in grams) can be formed from 60.2 kg of hydrogen? Assume excess CO.…

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Q: Starting with the following equation, Fe₂O₃(s) + Al(s) → Fe(l) + Al₂O₃(s) calculate the moles of…

A: Given :-  Fe₂O₃(s) + Al(s) → Fe(l) + Al₂O₃(s) mass of Fe = 755 g  To be calculated :-  number of…

Q: How many grams of ironare produced from 1.00 Kg Fe2O3?The reaction is Fe2O3(s) + 3CO (g) → 2Fe(s) +…

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Q: Tanium occurs in the magnetic mineral menite (FeTiO₂), which is often found mixed up with sand The…

A: The explanation is given below-

Q: Balance the following equations:

A: Balanced chemical equations are as follows:   a)     2CO(g)  + O2 (g)  ----->   2CO2 (g)     b)…

Q: Iron is generally produced from iron ore through the following reaction in a blast furnace. If 400 g…

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Q: When potassium metal is placed in water, a large amount of energy is released as potassium hydroxide…

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Q: Sodium metal and chlorine gas can be produced by the electrolysis of molten  Sodium chloride as…

A: The reaction taking place is given as => 2 NaCl (l) --------> 2 Na (l) + Cl2 (g) Given : Mass…

Q: What is the mass percentage of Na in NaNO₃?

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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".