A K2SO4•Al2(SO4)3•24H2O preparation is tested for its purity by converting first to Al(OH)3 then finally to Al2O3. If you start with a 1.2391 g K2SO4•Al2(SO4)3•24H2O and obtained 0.1357 g Al2O3 (A). What can you say about the obtained purity value? Is it acceptable? (B). Which is a better choice of precipitate for the quantitative analysis of K2SO4•Al2(SO4)3•24H2O, Al(OH)3 or Al2O3? Explain

Q: Benzoic acid can be prepared as follows. Calculate the percentage yield NAOH HCI CN -COO Na -COOH…

A:

Q: Cr in an ore exists as Cr2O3, and is converted quantitatively to BaCrO4 (253.33 g/mol). Calculate…

A: According to the question, Cr in an oe exists as Cr2O3, and is converted quantitatively to BaCrO4.…

Q: The composition of a commercial cold remedy mixture is 87% aspirin, 7% caffeine, 6% vitamin C. What…

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Q: (a)If 12.06 g of NH4+ was found in the soil, how many ions of NH4+ was present initially? (b)If 500…

A: Given :  Mass of NH4+ = 12.06 gm  Mass of H2O produced = 500 gm

Q: 1. As(III) can be determined gravimetrically as As2S3. The weight of As2S3 obtained from a 0.5000 g…

A: Hello. Since your question has multiple parts, we will solve the first question for you. If you want…

Q: Question is attached

A: Limiting reagent It is the reagent that consumes completely in a reaction and determines the amount…

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

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

A:

Q: If you use 10.0g of CuSO4 and excess NH3, what is the theoretical yield of Cu(NH3)4SO4?

A: Copper sulphate reacts with excess of ammonia to form a compound CuNH34SO4. Mass of CuSO4 is 10 g.

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

A: Given,

Q: A 1.500 g sample of iron ore, labeled A, was processed accordingly to give 0.5215 g of pure Fe2O3…

A: Given: The mass of iron (Fe) ore A is 1.500 g The mass of pure Fe2O3 in ore A is 0.5215 g The mass…

Q: How many grams of solid Ca3(PO4)2 can be formed from a reaction of 51.8 mL of 0.754 M CaCl2 and 21.5…

A:

Q: Xe + 2 F2= XeF4 a) What is the theorhetical mass of Xenon Tetrafluoride that should form when 163 g…

A: a) Molar mass of Xenon = 131.293 g/mol Mass of Xenon = 163 g Thus, no of moles of Xenon…

Q: r in an ore exists as Cr2O3, and is converted quantitatively to BaCrO4 (253.33 g/mol). Calculate the…

A: According to the question, Cr in an ore exists as Cr2O3, and is converted quantitatively to BaCrO4…

Q: OWLV2 Online teachin X Cthe Deep Blue Compound ( +…

A: The stoichiometry is directly related to the quantitative relationship present between chemicals…

Q: 2. An iron ore was analyzed by dissolving a 1.1324 g sample in concentrated HC. The resulting…

A: Percentage of Fe and Fe3O4 can be calculated from the total moles of iron present in the sample.

Q: Cr in an ore exists as Cr2O3, and is converted quantitatively to BaCrO4 (253.33 g/mol). Calculate…

A:

Q: Industrially, vanadium metal, which is used in steel alloys, can be obtained by reacting vanadium(V)…

A:

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

A: Given data,  Mass of 1.67 g of a KClO3/KCl mixture.  KClO3 present in mixture = 75 %

Q: Are the following statements true or false?   A) Magnesium chloride and sodium hydroxide is…

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Q: Explain  question 2 what is the true percentage of water in BaCl2•2H2O?

A: Because water has a molar mass of 18.015 g/mol, it follows that 2×18.015 g of water for every…

Q: Potentially Useful Information Spectrochemical Series: I < Br° < SCN" < cI' < NO3° < F° < OH° <…

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Q: When 0.6742 g mixture of a mixture containing only MgCO3 and CaCO3 is treated with an excess of HCl,…

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Q: Vanadium can be obtained by processing VO2 Which is 61.42% vanadium and 38.58 % Oxygen What mass of…

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Q: Automotive air bags inflate when a sample of sodium azide, NaN3, is very rapidly decomposed.2NaN3(s)…

A: Given, 2 NaN3 (s) ⟶ 2 Na (s) + 3 N2 (g)Volume of N2 = 73.6 LDensity of N2 = 1.25 g L-1 To find, Mass…

Q: A 1.500 g sample of iron ore, labeled A, was processed accordingly to give 0.5215 g of pure Fe2O3…

A:

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: A sample of magnetite  (impure Fe3O4) weighing 0.4500 g is fused with oxidizing flux and the ferric…

A: Magnetite is an ore of Fe with the formula Fe3O4

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

A: Given data : Mass of Fe = 1.49 × 103 kg = 1.49 × 106 g Mass of Fe2O3 = 2.38 × 103 kg

Q: 2NO2(g) N204(g). Kc = 0.212 the reaction proceeds more to the right True False

A:

Q: Ores with as little as 0.25% by mass of copper are used assources of the metal. (a) How many…

A: Amount of copper needed for making another Statue of Liberty=2.×105 lb.Mass % of copper present in…

Q: How to do to question120 below

A: Given information:Mass of silver oxide = 25.0 gMass of C10H10N4SO2 = 50.0 g

Q: 1. Pure iron can be prepared by reacting ferric oxide with carbon monoxide. Fe203 + 3CO → 2Fe + 3CO2…

A: a) For identification of limiting reagent and excess reagent we will determine the moles of each…

Q: What is the mass percentage of S in hydrochlorothiazide, C₇H₈ClN₃O₄S₂? Provide an answer to two…

A: The percent mass of S in given compound is determined by using following expression. %S=Molar mass…

Q: 2. Write a balanced chemical equation for the reaction of bromine and triolein, a triglyceride of…

A: Given; structure

Q: The price of (a) CoCl•6H2O is $25.00 per 100 g and (b) NH,CI was $11.35 per 500 g. Calculate the…

A:

Q: 0.5 g sample of an alloy containing 30% (m/m) iron (MM 55.84 g/mol) is dissolved in acid and diluted…

A: Mass of iron in alloy can be calculated using the formula:Mass % = (Mass of element / Mass of…

Q: What is the % by mass of Cu in the ore malachite (Cu2(OH)2CO3) ?

A: Interpretation: The % by mass of Cu in the ore malachite Cu2OH2CO3 is to be calculated.

Q: A 1.500 g sample of iron ore, labeled A, was processed accordingly to give 0.5215 g of pure Fe2O3…

A:

Q: When the follow equation is balanced, what coefficient would fall before the symbol "HC2H3O2"? Fe +…

A: Given, Chemical Reaction : Fe + HC2H3O2  ----&gt; Fe(C2H3O2)3 + H2

Q: Imran Syed is presenting Asi A Kiyumi and S more e.g.: The thermite reaction has been used for…

A: Given, Fe2O3 + 2 Al ---&gt; 2Fe + Al2O3  Mass of Fe = 15.0 g  Molar mass Fe = 55.8 g/mol Molar mass…

Q: Copper(II) phthalocyanine (Cu(C,HeNe)) is produced by the cyclotetramerization of phthalonitrile…

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Q: 6- In the reaction below by complete reaction of 2 mol KCIO3, 120.6 g KCl is produced. Calculate the…

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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: A 1.500 g sample of iron ore, labeled A, was processed accordingly to give 0.5215 g of pure Fe2O3…

A: % Fe3O4 =Amount of Fe3O4 in orein gAmount of sample in g×100%

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

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Q: H*(ag) + Cr,O,² (aq) + C,H;OH(1) acid Cr*(aq) + CO2(g) + H;O(1)

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Q: 19. From the following reaction scheme, "CHs HCI FeBr, When 4 g of ethanoyl chloride was used, 3.24g…

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Q: 0.6465 grams of bleach, Ca(OCl)2, is dissolved in acid and treated with excess KI. Calculate the…

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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.