Coke is an impure form of carbon that is often used in the industrial production of metals from their oxides. If a sample of coke is 95% carbon by mass, determine the mass of coke needed to react completely with 1.0 ton of copper(II) oxide.

Q: Solid copper(II) chloride forms a hydrate of formula CuCl2 ⋅ xH2O. A student heated a sample of…

A: Here we are required to find the percentage of anhydrous copper chloride

Q: Chemical analyses conducted by the first Mars Rover robotic vehicle in its 1997 mission collected…

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Q: What mass of carbon dioxide can be made by reacting 1.56 grams of sodium bicarbonate with 0.687…

A: In order to calculate the mass of carbon dioxide we have to determine the limiting reagent. By…

Q: Calcium carbide, CaC2, can be produced in an electric furnace by strongly heating calcium oxide…

A: A balanced equation is one in which the number of atoms on both side of the equation are same. A…

Q: Compound X2Z contains 32.2% X by mass. What mass of the compound contains 36.7 g X?

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Q: Solid copper(II) chloride forms a hydrate of formula CuCl2 ⋅ xH2O. A student heated a sample of…

A: Given,  Formula of hydrate copper(II) chloride = CuCl2.xH2O Mass of crucible = 16.221 gMass of…

Q: 5.00 g of copper is reacted with 5.00 g of sulfur in a crucible and a compound composed of copper…

A: Mass percentage of substance is one of the ways to express composition of compounds. Mass percentage…

Q: You weigh a dry flask, and place a chunk of solid into it, then weigh it again. You then fill the…

A: We are given mass of flask = 58.97g  Mass of flask + solid = 135.91g  We have to find mass of solid

Q: Find the percentage of nitric acid if you know that 9.777 G has been diluted with water to a liter…

A: Given Data: Total Mass of HNO3 sample = 9.777 g Volume of HNO3 sample = 1.0 L Volume of HNO3 used…

Q: 1. Fe + CuSO, → 2. Zn + 0,→ 3. Sil, + Mg

A: 1)Fe + CuSO4  -----> FeSO4 + Cu (a type of displacement reaction in which more reactive Fe…

Q: Using your data, calculate the mass of magnesium metal that you reacted and the  mass of the product…

A: The chemical reaction involved in this process is 2Mg + O2 → 2MgO The mass of magnesium metal…

Q: Given the following data, calculate the mass percentage of copper in the unknown copper oxide sample…

A: According to the question, Mass of empty test tube:…

Q: A mixture was found to contain 1.50g NH4CI, 0.80 g NaCI, and 1.20 g SiO2. What is the percentage of…

A: Given: Mass of NH4Cl = 1.50 g Mass of NaCl = 0.80 g Mass of SiO2 = 1.20 g

Q: Complete the following table.

A: Symbol number of protons number of neutrons number of electrons atomic number mass number net charge…

Q: a) Calculate the molar ratio of carbon / hydrogen in the fuel and use the result to prove that the…

A: (A) -- When methane (natural gas) is burnt  CH4+2O2  →  CO2 +  2H2O16 gm              44 gm    36 gm…

Q: nitrogen gas to produce ammonia. How many kilograms of hydrogen would be required to react…

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

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Q: Explain, in terms of the composition, why sample A represents a pure- substance. * B 8.

A: Those substances which have mass and occupies space is known as matter. Matter can be classified…

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: In a chemical reaction, sulfur goes through a combustion reaction and produces sulfur trioxide as a…

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Q: A mixture is made by combining 1.02 lb of salt and 3.76 lb of water. What is the percentage of salt…

A: Percentage of salt (%) by mass is given by percentage by mass = mass of salt x 100/mass of water…

Q: For the reaction: CS2 (g) + 3 02 (g) CO2 (g) + 2 SO: (g) calculate: 10. the mass of oxygen (in kg)…

A: The reaction is CS2(g) + 3O2(g) →CO2(g) + 2SO2(g)

Q: A sample of gas mixture from a neon sign contains 5.12 x 10- mol Ne and 4.40 x 10- mol Kr. What are…

A: Mass percentage is the ratio of mass of a substance to the mass of mixture, multiplied by 100. Fir…

Q: compound containing Sodium, Chlorine, and Oxygen is 25.42% Sodium by mass. A 3.25-gram sample gives…

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Q: You have a sample of soil. Soil is a heterogeneous mixture. You separate the different size…

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Q: 1.00 g of a certain Compound X, known to be made of carbon, hydrogen and perhaps oxygen, and to have…

A: The empirical formula is the chemical formula of any compound that represents the proportions of…

Q: 7.00 g of a certain Compound X, known to be made of carbon, hydrogen and perhaps oxygen, and to have…

A: Empirical formulas can be determined from the percent composition of a compound.  In order to…

Q: 2. A particular brand of beef jerky contains 0.0552 % sodium nitrite (NaNO2) by mass and is sold in…

A: Given: % NaNO2=0.0552 % 1 bag contains 8 oz sample Mass of sample= 8 x 28.35 g =226.8 g

Q: Solvent Hydrogen Oceans Ponds Cooking Cleaning Boiling Freezing Properties Colorless Tasteless Oil…

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Q: student is given a mixture containing two nitrate compounds. The mixture includesNaNO3 and Ca(NO3)2.…

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Q: A student, Ken, is given a mixture containing two nitrate compounds. The mixture includes NaNO3 and…

A: Mass Percentage of NO3 in the mixture is 73.76%. it implies that 100 g of mixture contains 73.76 g…

Q: You weigh a dry flask, and place a chunk of solid into it, then weigh it again. You then fil the…

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Q: Ammonia, an important source of fixed nitrogen that can be metabolized by plants, is produced using…

A: Recall the Haber's process in which nitrogen and hydrogen are combined -…

Q: A mixture of potassium chloride and potassium bromide weighing 3.595 g is heated with chlorine,…

A: Given: weight of mixture = 3.595g  Total mass of Kcl after reaction n= 3.129g  To determine: KBr…

Q: Solid copper(II) chloride forms a hydrate of formula CuCl2 ⋅ xH2O. A student heated a sample of…

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Q: If 2.4 g Ti is reacted with 1.6 g F2 what mass of TiF4 will be produced?

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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: A student, Ken, is given a mixture containing two nitrate compounds. The mixture includes NaNO, and…

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Q: 7.00 g of a certain Compound X, known to be made of carbon, hydrogen and perhaps oxygen, and to have…

A:

Q: Solid copper(II) chloride forms a hydrate of formula CuCl2 ⋅ xH2O. A student heated a sample of…

A: Here we are required to find the percentage of water.

Q: A mixture contains only NaCl and Fe(NO3)3. A 0.456-g sample of the mixture is dissolved in water,…

A: Given a mixture has NaCl+Fe(NO3)3. When excess NaOH is added, Fe(NO3)3 reacts with NaOH and forms…

Q: Hydrogen cyanide, HCN, is prepared from ammonia, air, and natural gas (CH4) by the following…

A: The balanced reaction taking place is given as, => 2 NH3 (g) + 3 O2 (g) + 2 CH4 (g)…

Q: The active ingredient in photographic fixer solution contains sodium, sulfur, and oxygen. Analysis…

A: Empirical formula: The empirical formula of a chemical compound tells us about the relative ratios…

Q: Aspirin can be prepared from salicylic acid (C7H6O3 ), which has a molar mass of 138.12 g/mol, and…

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Q: Crime scene investigators keep a wide variety of compounds on hand to help with identifying unknown…

A: Elemental analysis of the compound revealed that it contains  63.57% carbon 6.000% hydrogen 9.267%…

Q: Aspirin can be prepared from salicylic acid (C7H;O3), which has a molar mass of 138.12 g/mol, and…

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Q: Part B How many moles of hydrogen gas would be needed to react with excess carbon dioxide to produce…

A: Balanced equation: CO2 (g)  +  4H2 (g)  -----> CH4 (g) + 2H2O (g) Number of mol of methane =…

Q: The mass of an empty evaporating dish is 42.48 g. A sample of the hydrate KAl(SO4)2 x XH2O is added…

A: To Solve this problem first we have to calculate the mass of water hydrated then we will calculate…

Q: Carbon tetrachloride was prepared by reacting 23.6 g of carbon disulfide and 47 g of chlorine gas.…

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Q: SiO2 (s)+ C(s)Si(s) + CO(9) a. SIO2(s) C(s)- Si(s) + |CO() > b. Liquid silicon tetrachloride is…

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