Phosphorus may be determined analytically by precipitating it as MgNH4PO4 followed by ignition to Mg2P2O7. What mass of Mg2P2O7 will be obtained from a 9.346 g sample of phosphate rock which contains 71.24% Ca3(PO4)2?

Q: Metals react with oxygen gas to produce oxides with the general formula MxOy. Write a balanced…

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Q: Methylhydrazine, N2H3CH31l2, is used with the oxidizer dinitrogen tetroxide, N2O41l2, to power the…

A: Methylhydrazine, N2H3CH3 (l), is reacted with dinitrogen tetroxide, N2O4(l), to produce N2, CO2, and…

Q: Illustrate the Law of Conservation of Mass in the following reaction that will produce 20 kg of I2:…

A: The law of conservation of mass states that mass in an isolated system is neither created nor…

Q: 195 kg of H3PO4 was extracted from 310 kg of natural phosphorite. Natural phosphorite Calculate the…

A: Molecular formula of calcium phosphate is Ca3​(PO4​)2​.Its molar mass is 3(40)+2(31)+8(16)=310…

Q: A 5.276 g sample of Al-Mg alloy is digested in nitric acid (to Al*3 and Mg*²). The solution is…

A: Given: Mass of sample = 5.276 g The solution is diluted = 500 mL three 100 mL of solution titrated…

Q: How many grams of sodium iodide, NaI, must be used to produce 56.2 g of iodine, I2?

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Q: If you added an excess of CaCl 2 ⋅ 2 H 2 O to 1.504 g Na 3 PO 4, how many grams of Ca 3 ( PO 4 ) 2…

A: Given:Mass of Na3PO4 = 1.50 g.Molar mass of Na3PO4 = 163.94 g/mol.Molar mass of Ca3(PO4)2 = 310.18…

Q: Give the chemical formula for the compound Aluminum fluoride Iron(III) sulfide Zinc nitrate Barium…

A: A chemical formula is symbolic representation of composition of compound

Q: Write a balanced chemical equation based on the following description: the reaction of gaseous C₅H₄…

A: The reactants given are  1) gaseous C5H4 i.e C5H4 (g) 2) Oxygen gas i.e O2 (g) And the products…

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: What mass of silver oxide, Ag2O, is required to produce 25.0 g of silver sulfadiazine, AgC10H9N4SO2,…

A: Given:  Mass of silver sulfadiazine to produce = 25 gm

Q: The following reaction describes the production of elemental sulfur. Calculate the mass of elemental…

A: Given- Weight of dihydrogen sulphide =15.39 g  H2S(g)+O2(g) -> S8(s) + H2O(g)

Q: What % fraction of the electrons would you have to remove from a 5.0 mg sphere iron in order to make…

A: Given:  mass of Fe sphere = 5 mg = 0.005 g charge on sphere= 3C  we know that, atomic mass of…

Q: Elemental phosphorus can be prepared from calcium phosphate via the overall reaction2 Ca3(PO4)2 + 6…

A: The reaction considered is,

Q: An alloy of Sn, Pb, and Cd has a mole ratio of Sn to Pb of 2.73:1.00, and the mass ratio of Pb to Cd…

A: Given,An alloy of Sn, Pb, and Cd has a mole ratio of Sn to Pb of 2.73:1.00, and the mass ratio of Pb…

Q: Iodine is made by the following reaction 2 NaIO3 (aq) + 5 NaHSO3 (aq) → 3 NaHSO4 (aq) + 2 Naz SO4…

A: 2 NaIO3(aq) + 5 NaHSO3(aq) →3 NaHSO4(aq)+2Na2SO4 (aq)+…

Q: Iodine is made by the following reaction 2 NaIO3(aq) + 5 NaHSO3(aq) → 3 NaHSO4 (aq) + 2 Na2SO4 (aq)…

A: Given , Reaction : 2NaIO3(aq) +5 NaHSO3(aq) → 3NaHSO4(aq) + 2Na2SO4(aq) +H2O(I) +I2(aq)

Q: If you react 6.7g of iron oxide with 4.5g of aluminium, what is the theoretical yield of aluminium…

A: Given, Mass of iron oxide = 6.7g. Mass of aluminium = 4.5g. The moles of iron oxide and aluminium…

Q: What is efflorescence? Give an example?

A: The structure of chemical compound can be represented as structural formula. A structural formula…

Q: What mass of silver oxide, ag2o, is required to produce 25.0 g of silver sulfadiazine, agc10h9n4so2,…

A: Given balanced equation is as follows. 2C10H10N4SO2 + Ag2O → 2AgC10H9N4SO2 + H2O That means 1 mole…

Q: 2Cl2) is formed from sulfur I atoms in the reactants an

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Q: . A sample of 1.000 g of a compound containing carbon and hydrogen reacts with oxygen at elevated…

A: Since we answer only 3 sub-parts, we'll answer the first three. Please resubmit the question by…

Q: Uranium can be isolated from its ores by dissolving it as UO2 (NO3 )2 , then separating it as solid…

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Q: Over the years, the thermite reaction has been used for welding railroad rails, in incendiary bombs,…

A: Fe2O3 + 2Al.....> 2Fe + Al2O3 Mass of Fe = 14.4 g Molar mass of Fe = 55.8  Moles of Fe =…

Q: If 34.0 g of MgSO4⋅7H2O is thoroughly heated, what mass of anhydrous magnesium sulfate will remain?

A: Given:Mass of  MgSO4⋅7H2O = 34.0 gWe need to find mass of anhydrous magnesium sulphate  produced…

Q: Copper is obtained from sulfide ores through a two-step process consisting of roasting the ore in…

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Q: Caustic soda, NaOH, can be prepared commercially by the reaction of Na 2CO 3 with slaked lime,…

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Q: Pure copper may be produced by the reaction of copper(l) sulfide with oxygen gas as follows: Cu2S(s)…

A: 1- First we need to determine the kmoles of Cu2S :  We know that, moles = mass / molar mass  kmoles…

Q: What is the mass percentage of Na in Na2SO3?

A: To calculate the mass percent of an element in a compound, we divide the mass of the element in 1…

Q: The calcium from a sample of limestone weighing 699mg was precipitated as CaC2O4 and ignited to CaO…

A: The ignition of calcium oxalate can be described as follows: CaC2O4  →  CaCO3  + COCaCO3   →  CaO  +…

Q: 5. Ammonia reacts with oxygen acco 4 NH3(g) + 5 O2(g) → 4 NOC

A: According to the question, ammonia reacts with oxygen according to the equation: 4 NH3(g) + 5O2(g)…

Q: The reaction of barium with sulfur is similar to that of magnesium with sulfur. Write the balanced…

A: A balanced chemical equation is the one in which the elements of the reactants becomes equal to the…

Q: In the preparation of Boric acid (MW = 61.81 g/mol), 120 grams of borax (MW = 381.2 g/mol) dissolved…

A: Given that : Mass of borax used = 120 g Volume of water used = 300 mL Volume of HCl used = 60 mL The…

Q: A 5.276 g sample of Al-Mg alloy is digested in nitric acid (to Al*3 and Mg"). The solution is…

A: Given that -  Mass of sample of alloy, Al-Mg = 5.276 g  Mass of alumina, Al2O3 = 1.444 g  Molar mass…

Q: Write the balanced equation for the photosynthesis reaction in which gaseous carbon dioxide and…

A: A chemical reaction is symbolic representation of the conversion of substances to new substances. In…

Q: Write balanced chemical equations for the following chemical reactions. Copper (II) oxide when…

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Q: Complete and balance the molecular equation for the reaction of aqueous copper(II) chloride, CuCl2,…

A: We have to predict the balanced molecular equation.

Q: The concentration of gold in seawater is 0.0027 ug/L. What mass of gold (in kg) is present in the…

A: Given: The concentration of gold in seawater = 0.0027 ug/L. Volume =  3.23 x 1011  km3  To…

Q: calculate the mass of calcium phosphate (in kilograms)

A: Since you have posted multiple questions, we are entitled to answer the first only. Please repost…

Q: Write a balanced chemical equation for the reaction of propane (C 3H 8) with oxygen (O 2) to form…

A: Given: Reaction of propane (C3H8) with oxygen (O2) to form carbon dioxide (CO2) and water (H2O)

Q: 7. Pt(NH;),Cl4 8. Fe(CO);

A: Here I have mentioned IUPAC names for the top two molecules     Pt(NH3)2Cl4-…

Q: What mass of barium sulfate can be produced by complete reaction of 27.4 g of Na2SO4?

A: Introduction: The amount of a substance can be measure in moles unit in chemistry. It is widely used…

Q: What is the mass percentage of O in C₃H₈O₂? Provide an answer to two decimal places.

A: We have to find the mass % of O in C₃H₈O₂ As,  Atomic mass of C = 12 g mol-1 Atomic mass of H = 1 g…

Q: theoretical yield

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Q: A chemist needs to produce 100 grams of gallium chloride, when gallium reacts with hydrochloric acid…

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Q: What is the maximum mass of ammonia that can be produced from a mixture of 1.40 x 10' g N, and 4.60…

A: Given data, According to the stoichiometry, One mole ( 28.014 g ) of nitrogen will react with three…

Q: 6. Consider the following reaction Cas(PO.)2 + 3 H,so, → 3 Caso, + 2 H;PO, a. What masses of calcium…

A: Limiting reagent It is a reagent that will be consumed completely in a reaction and determines the…

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".