1. An ore is analyzed for the manganese content by converting the manganese to Mn3O4 and weighing it. If a 2.51g of ore sample yields Mn3O4 weighing 0.261g. a) What would be the percent Mn2O3 in the ore sample? b) What is the percent of Mn?

Q: Calculate the mass of aluminum metal that is needed to produce Cr metal from 5.00 × 10² g of…

A: Solution- The Chromium metal is extracted from the Chromite ore by the following reaction 3Fe2CrO4…

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Q: Aluminum percent in a bauxite sample is determined by gravimetric analysis.  8-hydroxyquinoline…

A: Answer  = 0.784%

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A:

Q: a. What is the limiting reagent? b. What is the excess reagent?

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A:

Q: Question 5

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A: Since you have asked multiple question,we will solve the first question for you.If you want any…

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: A technician requires 55g of FeCl3 for an iron solution, however, the FeCl3 is not available.…

A: Mass of FeCl3 = 55 g Molar mass of FeCl3 = 162.2 g/mol Thus, moles of FeCl3 are- Moles of FeCl3=Mass…

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…

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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…

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Q: How many grams of copper will be produced from combining 3.00 grams each of Zn and aqueaous CuCl2? I…

A: The reaction is given below.

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

A:

Q: decomposed

A:

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

A: Weight of sample = 1.52 g   Yield of sample  = 0.126 g

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

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A: % yield depend upon the final mass of the product.

Q: NS) 0.2

A:

Q: A 0.8102-g sample of impure Al2(CO3)3 decomposed with HCl; the liberated CO2 was collected on…

A: The percentage of Aluminum in the sample can be calculated as follows

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Q: A student is given a 1.3308 g of an unknown copper compound. Following isolation by displacement by…

A: Given,      Mass of the unknown Copper Compound =1.3308 g      Mass of Copper (Cu) Metal recovered…

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Q: What mass of solid K is produced during this reaction?

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A: Given information: Mass of zinc = 3 g Actual yield of silver metal = 7.2 g

Q: 0.5 g of the sample containing KHC204.H2C204 and inert impurities is dissolved in water and…

A: The required reactions are: KHC2O4 . H2C2O4    →Ca(OH)2  2 CaC2O42 CaC2O4 →∆ 2 CaO + 2 CO2 +  2CO

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

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Q: Balance the equation and 51 Cr + 24 je > 1 e

A: This is a nuclear reaction and in nuclear reaction there must be mass balance and proton balance.

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Q: 1. Determine Number for each indicated atom the Oxidation a) S in Na,SO3 b) S in HSO4 c) Mn in KMnO4…

A:

Q: c) List An ore with the mass of 1.52 g is analyzed for the manganese content (Mn) by converting the…

A: Ans.

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Q: Assuming an efficiency of 33.90%, calculate the actual yield of magnesium nitrate formed from 115.5…

A: Given,Efficiency or percent yield = 33.90 %Mass of Mg = 115.5 gMoles of Mg can be calculated as:

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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".