Which one of the following is correct? O a. 2H20(t) –O2(g) + 4H*(aq) + 4e redox reaction O b. Cr20,2 (aq) + 2OH¯(aq) → 2Cro,2-(aq) + H2O(e) redox reaction O c. NH3(g) + HCI(g) NH4CI(s) precipitation reaction O d. 2H2O2-2H2O(t) + O2(g) redox reaction O e. NH3(aq) + HCI(aq) NH4CI(aq) neutralization reaction

Q: In the laboratory you are given the task of separating Ag* and Ba2* ions in aqueous solution. For…

A: Ag+ and Ba2+ ions  can be separated by adding a reagent if only one them form precipitate .…

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A:

Q: Potassium permanganate in acidic solution is used to titrate a solution of copper(I) ions, with…

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Q: 16.792 g of Ba(OH)2 (171.342 g.mol-1) is weighed out and carefully dissolved to make a 500.00cm3…

A:

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A: Given that -  Mass of Silicon dioxide SiO2 =  3.1754 g  Percentage of ultrapure silicon = 99.98%…

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A:

Q: 27. The balanced equation for the reaction of metallic iron with O2 gas to pr oxide is shown below.…

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A: The reaction of magnesium nitride and water to produce ammonia and magnesium hydroxide is given by:

Q: II ?. O SIMPLE REACTIONS Identifying oxidizing and reducing agents Decide whether each chemical…

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Q: AsO43+3 Ag+= Ag3AsO4 (0) The arsenate is converted into a solid (Ag3AsO4 (s)). If the mass of solid…

A: Given,

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Q: 3. Write balanced chemical equations for the following chemical reactions. a. Lime (calcium oxide)…

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Q: Question 89, Chapter 5 of General Chemistry 11th Edition, by Petrucci. The active ingredients in a…

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Q: the following balanced reaction: Pb(NO3)2(aq) + 2KI(aq) → PbI2(s) + 2KNO3(aq) 10.9 g of KI react…

A: Consider the given information is as follows; Mass of KI reacts = 10.9 g Concentration of PbNO32…

Q: In the standardization of NaOH solution, 0.5211 g potassium hydrogen phthalate (204.22 g/mol) is…

A: Given: Mass of potassium hydrogen phthalate present = 0.5211 g The molar mass of potassium hydrogen…

Q: 3. Assume that 2.4886 g of K½C13O, is dissolved in enough water to make 100.0 mL of solution. (a)…

A:

Q: The compound sodium thiosulfate pentahydrate, Na, S, O3-5H2O, is important commercially to the…

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Q: 6. What type of reaction is shown below? what are the product/s? Label the reactants and products.…

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Q: a) What mass of strontium nitrate (Sr(NO3)2) would be required to prepare 2.000 L of a 0.0180 M…

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Q: The mercury in a 1.9458 g sample was precipitated as Hg5(IO6)2  by treatment with an excess of…

A: Given  mass of sample = 1.9458 g mass of precipitate Hg5(IO6)2 = 0.5218 g    Required data -…

Q: A mixture of BaO and CaO weighing 2.212 g is transformed into mixed sulfates (BaSO4 and CaSO4)…

A: The reactions occurring are: Molar of the species are: BaO=153 g/mol CaO=56 g/mol CaSO4=136 g/mol…

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Q: 1. H2SO4. The resulting solution contained excess acid and required 15.85 mL of 0.09850 M NaOH for…

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Q: What mass of Zn(CN)2 is produced?

A: Mass of Zn(CN)2 produced is 11.70g Zn(CN)2 .

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Q: A supplement was tested for iron content in a laboratory. First, a random sample of 10 tablets…

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Q: KMnO4 according to the  following chemical equation: K2C2O4 (aq) +  2 KMnO4 (aq) +  8 H2O  →10 CO2…

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Q: Potassium permanganate in acidic solution is used to titrate a solution of iron(II) ions, with which…

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Q: How to do to question120 below

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Q: What is the maximum possible yield (in grams) of the NaN3?

A: Number of moles = mass/molar mass  Ideal gas equation;-  PV= nRT  Molar mass of NaN3 = 65.009 g/mol…

Q: 16.792 g of Ba(OH)2 (171.342 g.mol-1) is weighed out and carefully dissolved to make a 500.00cm3…

A:

Q: solution is prepared by dissolving 37.3 g of potassium chloride in distilled water. What is the…

A: A) Molarity (M) = 2.0M Mass = 37.3 g Molar mass of KCl = 74.6 g/mol Mole = mass/molar mass    =…

Q: Andrew dissolved 10.00 grams of an iron ore sample in 5.00 L of acid to produce a stock solution.…

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Q: A supplement was tested for iron content in a laboratory. First, a random sample of 10 tablets…

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Q: 16.792 g of Ba(OH)2 (171.342 g.mol-1) is weighed out and carefully dissolved to make a 500.00cm3…

A:

Q: In the preparation of Rochelle salt (MW = 282.83 g/mol), 6.6 grams of monohydrated Sodium carbonate…

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Q: Write chemical equations for each of the following chemical and physical processes: (a)…

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Q: 6. Under suitable conditions, thiourea, CS(NH2)2, is oxidized to sulfate by solutions of potassium…

A: we establish the relation between the  mole  of reactant and mole of product

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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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".