One of the first steps in a method to process “yellowcake” uranium ore for nuclear fuel is to dissolve the material in nitric acid.: U3O8(s) + 8HNO3(aq) + 14H2O(l) → 3[UO2(NO3)2·6H2O](aq) + 2NO2(g) Each steel drum of yellowcake contains about 4.0 x 102 kg of ore. The mass percentage of U3O8 in the ore is 80.%.  A truck can haul 43 drums of ore to the uranium refinery. How many moles of nitrogen dioxide “off-gas” (a pollutant that must be recovered) are produced per truckload of ore? Report your answer in scientific notation (format, 1.2E3 with a capital E to keep Blackboard happy) using 2 significant figures. Do not include units.

Q: 8.) Considering the equation 2 NaI (ao) + Cl₂(g) → 1₂ (s) + 2 NOCI (aa) How many grams of Sodium be…

A: 2 NaI (aq) + Cl2(g) ==> I2(s) + 2NaCl (aq)  Given Mass of Iodine = 49.5 g  Molar mass of Iodine =…

Q: If Cu(NO3)2 + 2 H2O à Cu(OH)2(s) + 2 HNO3(aq)  would any copper ions be produced? Write the net…

A:

Q: 9. When a candle has been burning for an hour, its mass is less than it was at the beginning. (a)…

A: (a) Candles losses weight when it melts down. The mass of candle does not change during the melt…

Q: Starting with the following equation, Fe₃O₄(s) + CO(g) → Fe(l) + CO₂(g) calculate the mass in grams…

A: According to given question,

Q: 6 takeCo Use the References to access important values if needed for this question. When silver…

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Q: Balance

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Q: This equation models how pure silver (Ag) is extracted from ores of AgK(CN)2 (potassium…

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Q: Balance the following chemical reaction: Al₂(SO₄)₃ (aq) + K₃PO₄ (aq) → AlPO₄ (s) + K₂SO₄ (aq)

A:

Q: Ariana plans to react a sample of magnesium carbonate (MgCO3) with hydrochloric acid (HCl) to…

A: Ariana plans to react a sample of magnesium carbonate (MgCO3) with hydrochloric acid (HCl) to…

Q: Cryolite, Na3AlF6(s), an ore used in the production of aluminum, can be synthesized using aluminum…

A: Given - Weight of Al2O3= 12.6kg = 12.6 × 103 g (1kg = 1000g) Weight of NaOH=59.4kg = 59.4 × 103 g…

Q: The fizz produced when Alka Seltzer tablet is dissolved in water is due to the reaction between…

A: 5.12 g of sodium bicarbonate 4.57 g of citric acid  To find the grams of carbon dioxide formed , we…

Q: If a sample of B10H12[N(CH3)3]2 is found to contain 7.25 · 1019 B atoms how many moles of…

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Q: what is the weight in grams of 4.30 x 10^14 CF4 molecules?

A:

Q: What is the mass (in grams) of 1.25 x 10^22 molecules of SeO2?

A: 1 mole of any species contains Avogadro's number i.e. 6.023 × 1023 of its constituent particles…

Q: Consider the Harber-Basch process for the synthesis of ammonia from its elements. Calculate the…

A: Interpretation-  To determine the theoretical yield in moles NH3 from the complete reaction of 59.8…

Q: The following reaction is known to have a 65.0% yield of copper. 3 Cu(NO3)2(aq) + 2 Fe à 2…

A: We have given that 3 Cu(NO3)2(aq) + 2 Fe(s) → 2 Fe(NO3)2(aq) + 3 Cu(s) and the reaction yield 65%…

Q: Balance the following chemical equation (if necessary): SiO₂ (s) + C(s)→→ Si(s) + CO(g)

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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: Bornite (Cu3 FeS3 ) is a copper ore used in the production of copper. When heated, the following…

A: Given: Mass of bornite = 2.5 metric ton Yield of copper = 86.3 % To Calculate: Mass of copper…

Q: Table salt, NaCl(s),NaCl(s), and sugar, C12H22O11(s),C12H22O11(s), are accidentally mixed. A 5.50…

A:

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

A:

Q: Starting with the following equation, Fe₃O₄(s) + CO(g) → Fe(l) + CO₂(g) calculate the mass in grams…

A: Weight of Fe = 575 gm

Q: Precipitates used in the gravimetric determination of uranium include NazU2O7 (MM = 634.0 g/mol),…

A: Calculate : which weighing forms having the greatest mass of precipitate from a given quantity of…

Q: In an experiment, 34.8243g of copper (II) nitrate hydrate, Cu(NO3)2•zH2O was heated to a constant…

A: Given, mass of copper (II) nitrate hydrate is 34.8243g and when heated the mass is 27.0351g.

Q: Iodine is prepared both in the laboratory and commercially by adding CI2 (g) to an aqueous solution…

A:

Q: The amount of nickel(II) present in an aqueous solution can be determined by precipitating the…

A: Concentration of DMG solution= 0.0550 M Concentration of nickel(II) sulfate solution =0.285 M…

Q: Uranium is used as a fuel, primarily in the form of uranium(IV) oxide, in nuclear power plants. A…

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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: percentage yield for this reaction when 0.436 mol potassium tetrachloroplatinate was reacted with…

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Q: What are the products formed when the following is mixed? The resulting reaction may or may not be…

A: All salts of nitrate and potassium are water soluble as the due to size mismatch between the ions…

Q: If the furnace initially contained 22.322.3 kg of solid calcium oxide and 10.510.5 kg…

A: Given: Mass of CaO = 22.3 kg Mass of P4O10 = 10.5 kg  To find: mass of calcium phosphate in kg…

Q: 1.How many moles of CuO can be produced from 1.11 mol of Cu2O in the following reaction?…

A: The amount of substance is usually defined in terms of mole. The mole is the SI unit of the quantity…

Q: A chemical plant uses electrical energy to decompose aqueous solutions of NaCl to give Cl₂, H₂, and…

A: Part A) mass of H2 = 5.4×104 kg Part B) mass of NaOH = 2.1×106 kgExplanation:Step 1:- Given…

Q: he doesn't have time to repeat the steps of heating, cooling crucibles, and remeasuring the mass.…

A: Amount of water in a hydrate is calculated by using the formula  Amount of water in a hydrated salt…

Q: D4), and siderite (FECO3)

A: Mass of  element in compound= mass of element×100÷mass of compund Fe3O4 have higest quantity of Fe…

Q: The reaction between potassium chlorate and red phosphorus takes place when you strike a match on a…

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Q: Starting with the following equation, Fe₃O₄(s) + CO(g) → Fe(l) + CO₂(g) calculate the mass in grams…

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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.