An ore is analyzed for manganese content gt converting the manganese to Mn3O4 and weighing it. If a 1.52 g sample yields Mn3O4 weighing 0.126 g, what would be the Mn2O3% in th sample? Mn% in the sample?

Q: A 0.8798 - g sample of Al2(CO3)3 decomposed with HCI; the liberated CO₂ (MW = 60.0g) was collected…

A: Given :  Weight of sample = 0.8798 gm  Weight of CO2 produced = 0.3369 gm  Molar weight of CO2 = 44…

Q: A 1.6394-g sample of limestone taken from Sinuhutan Cave in Brgy. Onop, Miagao was analyzed for Fe,…

A: ib

Q: A 1.455 g sample contain thiourea (NH,),CS (76.12 g/mol) was extracted into a dilute H,SO, solution…

A: Given that:  Molarity of Hg2+ = 0.009372M Volume of Hg2+ solution = 37.31ml = 37.31ml×1L/1000ml =…

Q: Q3/ A manganese content tested by converting (Mn to Mn,Oa) and weighting it. If the sample with mass…

A: Given: Mass of Mn sample = 0.76 g And mass of Mn3O4 formed = 0.063 g

Q: Ore containing the mineral clerite, MnSb,S,. is mined for its antimony content. During processing…

A: To get antimony content ore is mined. The mineral present in the ore is ------MnSb2S4. It is…

Q: 1. An ore is analyzed for the manganese content by converting the manganese to Mn3O4 and weighing…

A: For the ore sample the given data are as follows: The mass of the ore sample is = 2.51 g The mass of…

Q: If 4.25 grams of copper were plated out in the reaction: 3Cu2* + 2Al ---> 3Cu + 2AI3+ What mass of…

A: Consider the given reaction as;                                 3 Cu2+      +         2 Al        →…

Q: Balance the ff. by change in oxidation state method. Fe + KMnO4 + H2SO4 → FeSO4 + MnSO4+ K2SO4+ H2O

A: The given reaction is, Fe + KMnO4 + H2SO4 → FeSO4 + MnSO4+ K2SO4+ H2O

Q: What is the percentage of iron (AW 55.845 g/mol) in an ore if the weight of Fe203 (FW 159.687 g/mol)…

A: The molar mass of iron (III) oxide is = 159.687 g/mol The atomic mass of iron is = 55.845 g/mol The…

Q: The phosphorus in a 0.3724 g sample was precipitated as the slightly soluble (NH,);PO,.12M0O3. this…

A: Given: Mass of PbMoO4 produced = 2.7346 g And mass of phosphorous sample used (with P4O10 in it) =…

Q: o Oxidation of iron metal in the atmosphere is responsible for the formatic practice to prevent rust…

A: Oxidation of iron metal in the atmosphere is responsible for the formation of rust.

Q: 1. Calculate the percent composition of the elements in sodium phosphate, Na3PO4. 20+2PG cord the…

A: Hello. Since you have posted multiple questions and not specified which question needs to be solved,…

Q: In a laboratory experiment a blood sample was found to have an iron level of 6.72 mEq/L. How many…

A: Given: Normality = 6.72 mEq/L Volume of solution = 2.32 L Charge = +3

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

A:

Q: Bleaching powder, Ca(OCI)CI, reacts with iodide ion in acid medium liberating iodine: OCI + I + H…

A: (a).  Reactions proceed during the titration is ClO- (aq) + Cl- (aq) + 2H+ → Cl2 (g) + H2O…

Q: An ore is analyzed for the manganese content by converting the manganese to Mn3O4 and weighing it.…

A: The mass of the ore sample is = 2.51 g The mass of the Mn3O4 is = 0.261 g The mss percent of Mn2O3…

Q: 36. Balance the following equations by balancing the ions: a. Cr(NO3), + KOH → KNO; + Cr(OH), b.…

A: Here we have to write the balanced net ionic equation.

Q: 100.0 g of a ground mineral sample consisting of a mixture of MgCO₃ (magnesite) and BaCO₃…

A: 100.0 g of a ground mineral sample consisting of a mixture of MgCO₃ (magnesite) and BaCO₃…

Q: A mineral is known as ore if metal(a) Cannot be produced from it(b) Can be produced from it(c) Can…

A: Minerals are naturally occurring solid inorganic compounds . Ores are those minerals that contain…

Q: Pb(NO3)2 + Ni(en)1(H20)4SO4 ------> Pb(SO4)(s) + 2NO31- + Ni2+ + 4H2O + 1 en b. How many grams of…

A: Number of atoms, ions and molecules present on a given amount can be determined by “Mole Concept”.…

Q: Manganese is a key component of extremely hard steel.The element occurs naturally in many oxides. A…

A: Given: Mass of manganese oxide = 542.3g Mn/O ratio= 1.00/1.42

Q: 100.0 g of a ground mineral sample consisting of a mixture of MGCO3 (magnesite) and BaCO3…

A:

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

A: The balanced equations are   CaCO3 + H2SO4 ----------> CaSO4 + CO2 + H2O    H2SO4 + 2 NaOH…

Q: Iron was analyzed by dissolving 1.1324 g sample in concentrated HCL, The solution was diluted in…

A: A multiple choice question based on mole concept, which is to be accomplished.

Q: A sample of soda ash (impure Na2CO3) is titrated with 0.5000 N H2SO4. If the sample weighs 1.1000 g…

A:

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Q: What did the conducting solutions have in common?

A: Conducting solution is basically a solution that has the ability to conduct heat or electricity, or…

Q: What is the oxidation state of Cl in each ion? (a) ClO- (b) CIO2- (c) CIO3- (d) CIO4-

A: Question 1 a) ClO- = The oxidation number of oxygen is -2. The oxidation state of Cl in this given…

Q: A student is given 1.4571 g of pure CuO. To recover the Cu present in the compound, the dark powdery…

A: In this question, we have given : Mass of pure CuO = 1.4571 gVolume of HCl       = 15.0 mLMolarity…

Q: Ore containing the mineral clerite, MnSb,S, is mined for its antimony content. During processing the…

A: Please find the solution below:

Q: Which of the following is not an application of colorimeter? O Paints O Inks O Cosmetics O…

A: This question of colorimeter is taken from single and double beam instrument in portion colorimeter.…

Q: Iron was analyzed by dissolving 0.7324 g of sample in concentrated HCI. The Fe(lII) was then…

A: The given question is based on a simple concept of moles. We know that number of moles are equal to…

Q: Balance the ff. by change in oxidation state method. В. Fe + KMNO4 H2SO4 > Fe2SO4 MnSO4 + K2SO. +…

A: Balanced chemical equation: The equation which has an equal number of atoms on both sides is called…

Q: A mixture containing FeCl3 and AlCl3 weighs 5.95 g. The chlorides are converted to the hydrous…

A: Given: Weight of mixture containing FeCl3 and AlCl3 = 5.95g Let x be the mass of Fe and y be the…

Q: A mixture containing FeCl3 and AlCl3 only weighs 750.8 mg. The chlorides were precipitated using…

A:

Q: An ore is analysed lor the manganese content by converting the mangnese to Mo and woghing a152g…

A:

Q: Iron was analyzed by dissolving 1.1324 g sample in concentrated HCL. The solution was diluted in…

A: Given: Mass of iron sample = 1.1324 g Mass of Fe2O3 produced = 0.2697 g

Q: (b) A metallurgical laboratory carried out analysis of a sample in which analysis of Mn was done by…

A: The mass of the ore sample is = 3.18 g The mass of the MnSO4 precipitate is = 0.28 g The percentage…

Q: Sn2+ can be analysed by reaction with excess Fe3+ and the Fe2+ produced is oxidised back to Fe3+…

A: Here we are required to find the moles of Sn2+ present which was analysed  by redox titration using…

Q: ure Fe2O3.  When solid Fe2O3 is heated with an excess of carbon, iron metal, and carbon monoxide are…

A: When Fe2O3 reacts with carbon, pure iron is obtained. The following reaction takes…

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

A:

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A: Balance chemical equation: The chemical equation which has an equal number of atoms on both sides…

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: A 0.896 g sample of impure magnesite, MgCO3, was decomposed with HCl; the liberated CO 2 was…

A: MgCO3 decomposed with HCl . The balance chemical equation for this reaction is :  MgCO3 + 2 HCl =…

Q: Calculate the percent purity of copper in an ore in terms of Cu2O from the given data: Weight of…

A: Given that: mass of copper ore = 1.20 g Volume of Na2S2O3 = 40.00 mL 1.00 mL Na2S2O3 ≈ 0.004175 g…

Q: A mixture containing only FeCl3 (162.21) and AlCl3 (133.34) weighs 5.95 g. The chlorides are…

A: Let x and y be the masses of FeCl3 and AlCl3 in the 5.95g mixture, respectively. Thus, x + y = 5.95g…

Q: 24. A 1.500 g sample of iron ore, labeled A, was processed accordingly to give 0.5215 g of pure…

A: First of all we have to find mole of Fe from the mole of Fe2O3. From that we will get mass of Fe.…

Q: The calcium and magnesium in a urine sample were precipitated as oxalates. A mixed precipitate of…

A: