Consider a 5.430-g mixture of FeO and Fe3O4. You react this mixture with an excess of oxygen to form a 5.779 g Fe2O3. Calculate the percent by mass of FeO in the original mixture."

Q: Write a balanced chemical equation for: Sulfur dioxide gas reacting with oxygen gas to form sulfur…

A:

Q: 13 4 10 5.50 g of a certain Compound X, known to be made of carbon, hydrogen and perhaps oxygen, and…

A: Here an organic compound of mass 5.5 gram containing carbon and hydrogen , perhaps containing…

Q: 4.00 g of a certain Compound X, known to be made of carbon, hydrogen and perhaps oxygen, and to have…

A: Given that, 4.0 g of a compound X is made of carbon, hydrogen and perhaps oxygen. The molecular…

Q: Barium reacts with water to produce barium hydroxide and hydrogen gas. When 5.489 g Ba is combined…

A: Given: Mass of Ba = 5.489 g Mass of H2O = 53.00 g Mass of Ba(OH)2 produced = 6.849 g Chemical…

Q: Calculate the number of moles of hydrogen peroxide molecules, H2O2, present in a sample containing…

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Q: A 1.740-g sample of coal contains 1.584 g C. Calculate the mass percentage of C in the coal. Mass…

A: Mass percentage of C = 91.03 %

Q: In one process, 124 g of Al reacts with 601 g of Fe2O3, what is the mass of Al2O3 formed? 2Al +…

A: The given reaction is  2Al + Fe2O3=Al2O3 + 2Fe Moles of Al =124/27 =4.6moles Moles of Fe2O3 =601/160…

Q: 1. 84 g of CsH&O6 contains 6.02 x 1023 molecules.

A: Molar mass of C5H8O6 = 5×12 + 8×1+ 6 × 16 = 164 g 1 mol of any substance contains= 6.022×1023…

Q: g. If the chemical reaction produces 2.19 x 102 grams of AlCl3, then how many moles of MgCl2 were…

A: Since, you have asked multiple questions, so I will solved first question for you step by step in…

Q: How many vanadium atoms are contained in 158 kg of vanadium?

A: 1 mole of substance contains 6.022 x 1023 atom.

Q: What is the mass of a 6.761-mol sample of sodium hydroxide? O 40.00 g O 270.4 g O 162.3 g O 5.916 g…

A: In this question we have to use mole concept. According to which  one mole is equals to: 1 mol of…

Q: 1.50 g of a certain Compound X, known to be made of carbon, hydrogen and perhaps oxygen, and to have…

A: Given: Mass of compound X = 1.50 g Molecular mass of compound X = 70 g/mol Mass of carbon dioxide =…

Q: 56.7 g of H,S reacts with 30.9 g of SO, according to this reaction + SO, 2H,S + So, = 35 + 2H,0 What…

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Q: 1. Convert 25.2 g into mg. (1000 mg = 1 g) 2. Convert 3 x 105 g into kg. (1000 g = 1 kg) 3. What is…

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

Q: Calculate the percentage composition for PCI3. Mass percentage of phosphorus = Mass percentage of…

A: Formula : PCl5 Molar mass of P = 31 g/mol Molar mass of Cl = 35.5g/mol  Molar mass of PCl5 = P +…

Q: what is the percent by mass for each element in CaO?

A: The given element is CaO. That is it contain calcium and oxygen as its constituent particles.

Q: Calculate the mass percentage of carbon in a mixture that contains 244 grams of potassium carbonate…

A: Molar mass of K2CO3 = 138 g/mol Molar mass of citric acid = 192 g/mol

Q: A sample of 5.304 grams of a compound containing carbon and hydrogen reacts with oxygen at elevated…

A: Note: due to guidelines, we have to do 3 subparts.

Q: What mass of water is contained in a 5.398_g sample of Na22CO3.10H2O?

A: The mass of the sample is 5.398 g.The molar mass of Na2CO3.10H2O is 286 g/mol.The mass of water in…

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

A:

Q: 4.00 g of a certain Compound X, known to be made of carbon, hydrogen and perhaps oxygen, and to have…

A:

Q: 6. Oxygen gas can be produced from the reaction of titanium (IV) oxide with bromine trifluoride…

A: A question based on stoichiometry, which is to be accomplished.

Q: What mass of oxygen is 63.8 g of magnesium nitrate: Mg(NO3)2 (Mw. 148.33 g/mol)?

A: Molar mass of Mg(NO3)2 = 148.33 g/mol Atomic mass of O =16.0 g/mol Mass of Mg(NO3)2 = 63.8 g (Given)…

Q: Given the chemical reaction N₂ + 3H₂ → 2NH3 Determine the largest mass of NH3 that could be produced…

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Q: A 15-g sample of lithium is reacted with 15 g of fluorine to form lithium fluoride: 2Li + F2 →…

A: First convert mass into mole by diving molar mass respectively Then Calculate limiting reagent by…

Q: 1 Bao + 1 H2SO, → 1 BasO4 + 1 H,0 3. (a) What mass of BaSO, can be formed from 196.0 g of…

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Q: Sodium reacts with oxygen to produce sodium oxide in a synthesis reaction. A chemist needs to…

A: Sodium metal reacts with oxygen to form sodium oxide. The equation for the balanced chemical…

Q: How many grams of iron, molar mass 55.85 g/mol, will be consumed during the formation of 13.71 grams…

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Q: Determine the atomic and mass ratio of NaCl and calculate how many grams of Na is needed to make a…

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Q: If carbon has a molar mass of 12g and oxygen has a molar mass of 16g. What is the molecular mass of…

A: Consider the given information is as follows: Molar mass of carbon = 12 g Molar mass of oxygen = 16…

Q: How many grams of NO2 are needed to make 1.5 g of N2?

A: Given :- mass of N2 = 1.5 g  To calculate :- mass of NO2 (in grams)

Q: What mass of oxygen would be in a 124.56g sample of sodium thiosulfate Na2S2O3?

A: Given that:  Mass of Na2S2O3 = 124.56g  Molar mass of Na = 23g/mol Molar mass of S = 32g/mol Molar…

Q: Ca₃(PO₄)₂(s) + H₂SO₄(aq) → CaSO₄(s) + H₃PO₄(aq) calculate the mass in grams of Ca₃(PO₄)₂ that will…

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Q: Determine the mass percentage of carbon, C, hydrogen, H, and oxygen, O, in C,H2O6. R

A: Given :-  Molecular formula of glucose = C6H12O6  To be determined :-  Mass percentage of C, H and O…

Q: What mass of oxygen would be required to convert 4.00 g of sulfur into sulfur trioxide (SO3)?

A: Given, amount of sulfur =4.00 gramwe are asked to calculate the mass of oxygen would be required…

Q: How many moles of CCL4 are present in 7.65 X 1045 molecules of the compound? W mass of this amount…

A: Given: The number of molecules of CCl4 is 7.65×1045. The number of moles and mass of CCl4 is to be…

Q: Amounts of tin may be alloyed with copper to produce bronzes of varying composition and properties.…

A: Given :  Mass of bronze = 8.9394 g  Mass of mixture of oxides = 11.2311 g

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

A:

Q: 8.00 g of a certain Compound X, known to be made of carbon, hydrogen and perhaps oxygen, and to have…

A: Given :  Mass of compound = 8.00 g  Molar mass of X = 138. g/mol  Mass of CO2 formed = 17.86 g  Mass…

Q: What is the mass of a 5.521 mole sample of MgCl2? O 17.26 g O 100.7 g O 525.7 g O 256.1 g

A: The given substance contains 5.521 moles of MgCl2. The mass of magnesium chloride can be determined…

Q: A single tablet of regular strength Tylenol contains 325 mg of the active ingredient, acetaminophen…

A: The molecular formula of acetaminophen has been provided as C8H9NO2.

Q: Chromium metal is obtained by heating chromium(111) oxide with carbon.Calculate the mass percentage…

A: By the help of stoichiometric coefficient we can find the amount of unknown substance by the help of…

Q: A rock is 6.5% by mass fayalite (Fe2SiO4), 14.2% by mass forsterite (Mg2SiO4), and the remainder…

A: In this question given: Fe2SiO4- Fayalite has 6.5% and 14.2% by mass forsterite, remaining is 79.3%…

Q: How many O atoms are present and what is their combined mass per mole of Ca3(PO4)2? Mass Ca = 120.24…

A:

Q: Consider 11.5 g Na2SO4. a. Determine the number of moles of Na2SO4. b. Determine the number of Na +…

A: A numerical problem based on mole concept, which is to be accomplished.

Q: A combustion analysis of 5.214 g of a compound yields 5.34 g CO, 1.09 g HO, and 1.70 g N. If the…

A: Correction: It should be CO2  not CO It should be H2O not HO It should be N2 not N Given, Mass of…

Q: A 4.78 g sample of Al reacts with O2 to form 6.67 g of Al2O3. calculate the mass percent of Al in…

A: Mass percent of an element is equal to the mass of the element divided by total mass multiplied by…

Q: What is the mass of 1.36 x 1022 molecules of HCI? O 36.5 g 1610 g

A:

Q: What mass of (NH4)2SO4 must be mixed with 45 kg of KNO3 to produce a fertilizer that has a 17.6 mass…

A: NH42SO4 is mixed with 45 kg of KNO3We have to find mass of NH42SO4 added to obtain the final mass…

Q: 9. Explain how the atomic mass unit (amu) is defined and explain how the definition of an amu, in…

A: amu i.e atomic mass unit is the unit used to express mass .  Avogadro's number = 6.0221 × 1023

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.