Answered: 34. You heat 3.970 g of a mixture of…

34. You heat 3.970 g of a mixture of Fe3O4 and FeO to form 4.195 g Fe2O3. The mass percent of FeO originally in the mixture was: 12.1% a) b) 28.7% c) 71.3% d) 87.9%

Introductory Chemistry For Today

8th Edition

ISBN:9781285644561

Author:Seager

Publisher:Seager

Chapter2: Atoms And Molecules

Section: Chapter Questions

Problem 2.60E

See similar textbooks

Related questions

Q: A) How many grams of MgI2 is present in a 0.4745 g sample that is 53.21% MgI2 (278.11 g/mol)? B)…

Q: Phosphorus reacts with oxygen to form phosphorus(III) oxide as shown. 4P(s) + 302(g) → 2P2O3(s)…

A: Consider the given balanced reaction as: Reaction: 4Ps + 3O2g →…

Q: What is the percentage of calcium carbonate present in the original mixture?

Q: Suppose a student starts with 2.4185 g of a sand mixture and separates the components into 1.3012 g…

A: The mass percentage is the simplest way of representing the mass of the components present in the…

Q: 2. You start with 2.46 g of KCIO345) and heat it. Use stoichiometry to calculate the mass (g) of KCI…

Q: Determine the percentage compo

A: % element = n x atomic mass molecular mass of compound x 100 where element = Oxygen…

Q: Q1: Calculate the mass needed to prepare 2.0L of 0.05M AGNO, (M. Mass 169.87g/mol) from its primary…

A: We’ll answer the first question since the exact one wasn’t specified. Please submit a new question…

Q: What mass of HF is produced from the reaction of 0.81 g of H2 with excess F2?

A: H2 + F2 ==> 2HF ... balanced equation Since the question is asking us to find the mass of product…

Q: Solid calcium sulfate is collected in a Büchner funnel and dried. The mass of the solid product is…

A: We are given mass of calcium sulfate and we have to find mass of CaCO3

Q: If a chemist reacts of 5.55 g of Cl2 gas with 3.88 g of solid P4 and produced 5.15 g of solid PCl5.…

Q: Set up the mole ratio of CO2to O2.

A: For the general case, the atmospheric pressure is 1.00 atm and temperature 298.15 K, the volume of 1…

Q: How many grams of NH3 can be produced from 4.36 mol of N2 and excess H2

A: Given, Moles of N2 = 4.36 mol The balanced reaction between N2 and H2 to form NH3 can be written…

Q: Disilane (Si2H6) is a gas that reacts with oxygen to give silica (SiO2) and water. Calculate the…

Q: What mass, in grams, of C2H2 is needed to form 270.4 g of CO2? Assume excess oxygen. 2C2H2(g) +…

Q: Hydrocarbon methane (CHa) during combustion produces carbon dioxide and water. On the other hand,…

A: Introduction The mass of any particular product or reactant species can be derived if we apply…

Q: What are the steps for determining the mass of product C of a chemical reaction if the masses of…

A: To find the mass of product , we required the molar mass of product and reactants . The Chemical…

Q: d If nickel(II) formate is heated to 300 °C in the absence of air for 30 minutes, the salt…

A: Nickel formate decomposed to form nickel powder. Each mole nickel formate produces 1 mol of nickel.…

Q: Metal hydrides react with water to form hydrogen gas andthe metal hydroxide. For example,SrH₂(s)…

A: a) The balanced equation is SrH2 + 2H2O = Sr(OH)2 + 2H2 Convert the given grams of SrH2 into moles…

Q: A 39.59 sample Of copper B heated in the presence of excess Oxygen and is converted to copper l11)…

A: Given, mass of copper sample = 39.5 g Mass of copper (II) oxide formed = 45.5 g Molar mass of Copper…

Q: How many grams of NH3 can be produced from 3.88 mol of N2 and excess H2.

A: Given, 3.88mol N2

Q: Determine the mass of calcium hydroxide produced when calcium carbide reacts with 0.695g of water.…

A: Given reaction:CaC2 + 2H2O → Ca(OH)2 + C2H2

Q: how many moles of Z will be produced from 3.10 mol A, assuming excess B? 2A+3B--->4Y+5Z Moles of…

A: For the given reaction:

Q: How many moles of H2 can be formed if a 2.78 g sample of Mg reacts with excess HC1?

Q: Propenoic acid, C3H4O2, is a reactive organic liquid that is used in the manufacturing of plastics,…

A: Combustion :- Burning of a compound in excess of air or oxygen is called combustion. Combustion of…

Q: Consider the following balanced reaction. What mass (in g) of CO2 (44.01g/mol) can be formed from…

Q: What mass of N2S4is formed when 10.00 g of N2 is heated with 20.0 g S8?

A: Given,Mass of N2 = 10.00 gMass of S8 = 20.0 gThe moles of N2 and S8 can be calculated as:

Q: Consider the following reaction: N, 13 H2 →2 NH3 How many grams of N, are needed to produce 9.0…

A: Given data: Mass of NH3 = 9 gm Molar mass of NH3 = 17 gm Molar mass of N2 = 28 gm

Q: A 30.141 mg sample of a chemical known to contain only carbon, hydrogen, sulfur, and oxygen is put…

A: To determine the empirical formula , we would determine the moles of Carbon, Hydrogen , sulfur and…

Q: What mass of H2O is formed when H2 reacts with 284 g of O2?

Q: Part A Consider the following reaction. How many moles of oxygen are required to produce 10.0 moles…

Q: of Br2, in grams, is required for complete reaction with 9.56 g of A g Br2 of white, solid Al,Bre is…

A: Given, Balanced chemical reaction, 2Al + 3Br2 ----> Al2Br3 Mass of Al = 9.56 g Molar mass of Al…

Q: A 161 g sample of MnCl₂·nH₂O yields 112 g of the anhydrous compound after heating. Determine n in…

A: A 161 g sample of MnCl2.nH2O yields 112 g of anhydrous compound after heating. We have to determine…

Q: Use the following data and steps below to calculate the formula of the copper chloride hydrate.…

A: Since you have posted a question with multiple sub-parts , we will solve first three subparts for…

Q: In a lab experiment, 7.97 g of phosphorus reacts with bromine to form 69.65 g of phosphorus…

A: When mole fraction of element is multiply by 100 we obtained percentage by mass .

Q: A mixture was found to contain 4.36 g of Na2CO3, 6.21g of S403 and 1.89 g of LizSe. What is the…

A: Given : Mass of lithium selenium i.e Li2Se = 1.89 g Mass of Na2CO3 = 4.36 g Mass of S4O3 = 6.21 g

Q: A. How many grams of methyl alcohol can be produced from 147 g of CO with excess hydrogen present?

A: Number of moles = mass/molar mass Molar mass of CO = 28 g/mol Molar mass of H2 = 2.0 g/mol Molar…

Q: TReview Topics [Rererences Use the References to access important values if needed for this…

A: Moles of compound combusted = mass of compound / molar mass of compound = 10.08 / 62.07 = 0.1624…

Q: Give the empirical formula for the following compounds: a) b) d) Paragraph BIU A + v GO ...

A: Molecular formula is the formula of a compound that gives the total number of atoms present in that…

Q: How many grams of N2 will be used to produce 85.5 moles of MgN3

A: Balanced Reaction 2 Mg +3N2 →2MgN3 Now 2 mol Mg reacts with 3 mol N2 and produce MgN3. This is…

Q: How many grams of NH3 can be produced from 2.4 mol of N2 and excess H2?

A: Given:Mol. Of N = 2.4Hydrogen is excess. So we need to calculate the mass of ammonia with respect to…

Q: A compound is composed of carbon, hydrogen, nitrogen and oxygen. When a 1.500-g sample of the…

A: Given- mass of sample = 1.500 g combustion yields - CO2 = 1.476 g H2O = 0.605 g N2 = 0.313 g To find…

Q: What mass of NO can be produced from 8.34 g of NH3

A: The limiting reagent in a chemical reaction is a reactant that is totally consumed when the chemical…

Q: Suppose a student starts with 2.4464 g of a sand mixture and separates the components into 1.3012 g…

A: According to the question, we had a sand mixture consisting of NaClNaCl, CaCO3CaCOX3, and SiO2SiOX2.…

Q: How many moles of potassium phosphate (K3PO4) will be produced from 5.62 moles of magnesium…

A: Consider the balanced reaction of magnesium phosphate to give the potassium phosphate is as follows:…

Q: In one process, 6.05 kg of CaF2 is treated with an excess of H2SO4 and yields 2.35 kg of HF.…

Q: How many g of SO2 will you obtain from reacting 15.6 g FeS and 16.5 g of O2?

A: Here, we have to find the mass of SO2 that will be obtained from reacting 15.6 g FeS and 16.5 g of…

Q: A sample containing 58.51 g manganese (Mn) is treated with an excess of sulfuric acid (H2SO4) to…

Q: Given the reaction, how many moles of Z will be produced from 4.10 mol A, assuming excess B? 2 A + 3…

Q: Sulfur dioxide will react with water to form sulfurous acid. SO2(g) + H2O(l) → H2SO3(l) WHat…

A: Given: The weight of H2SO3 is 29.36 g. The molar mass of boron trifluoride is 82.07 g/mol.

Q: How many moles of As are necessary to form 29.7g of As4O6 from this reaction: 4As(s) + 3O2(g) →…

A: Number of moles of As4O6 can be determined as follows: No.of moles of As4O6=massmolar mass=29.7…

Q: How many moles of Pb(SO4)2 are equivalent to 186.7 g of Pb(SO4)2 (Mw. 399.34 g/mol)?

A: Number of moles = mass /molar mass

Concept explainers

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".

Question

100%

34.
You heat 3.970 g of a mixture of Fe3O4 and FeO to form 4.195 g Fe2O3. The mass
percent of FeO originally in the mixture was:
PAGE 3A
a)
12.1%
28.7%
mole Awir
71.3%
c)
d)
87.9%
e)
none of these

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 1

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 2 steps with 2 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.

Similar questions

Phosphoric acid, one of the acids used in some cola drinks, is produced by the reaction of phosphorus(V) oxide, an acidic oxide, with water. Phosphorus(V) oxide is prepared by the combustion of phosphorus. (a) Write the empirical formula of phosphorus(V) oxide. (b) What is the molecular formula of phosphorus(V) oxide if the molar mass is about 280. (c) Write balanced equations for the production of phosphorus(V) oxide and phosphoric acid. (d) Determine the mass of phosphorus required to make 1.00104 kg of phosphoric acid, assuming a yield of 98.35%.
An air bag is deployed by utilizing the following re tion the nitrogen gas produced inflates the air bag): :math>2NaN3(s)2Na(s)+3N2(g) 10.5 g of NaN1 is decomposed, what theoretical mass of sodium should be produced? If only 2.84 g of sodium is actually collected, what is the percent yield?
How many molecules of C2H4Cl2 can be prepared from 15C2H4 molecules and 8Cl2 molecules?
Freon-12, CCl2F2, is prepared from CCl4 by reaction with HF. The other product of this reaction is HCl. Outline the steps needed to determine the percent yield of a reaction that produces 12.5 g of CCl2F2 from 32.9 g of Cd4. Freon-12 has been banned and is no longer used as a refrigerant because it catalyzes the decomposition of ozone and has a very long lifetime in the atmosphere. Determine the percent yield.
Sodium borate decahydrate, Na2B4O710H2O is commonly known as borax. It is used as a deodorizer and mold inhibitor. A sample weighing 15.86 g is heated until a constant mass is obtained indicating that all the water has been evaporated off. (a) What percent, by mass of Na2B4O710H2O is water? (b) What is the mass of the anhydrous sodium borate, Na2B4O7?
Copper(I) iodide (CuI) is often added to table salt as a dietary source of iodine. How many moles of CuI Are contained in 1.00 lb (454 g) of table salt containing 0.0100% CuI by mass?
4.17 Phosgene is a highly toxic gas that has been used as a chemical weapon at times in the past. It is now used in the manufacture of polycarbonates, which are used to make phone cases and plastic eyeglass lenses. Phosgene is produced by the reaction, CO+Cl2COCl2 . Given an excess of carbon monoxide, what mass of chlorine gas must be reacted to form 4.5 g of phosgene?
Silver is often extracted from ores such as K[Ag(CN)2] and then recovered by the reaction 2K[Ag(CN)2](aq)+Zn(s)2Ag(s)+Zn(CN)2(aq)+2KCN(aq) (a) How many molecules of Zn(CN)2 are produced by the reaction of 35.27 g of K[Ag(CN)2]? (b) What mass of Zn(CN)2 is produced?
How are the molecular mass and the molar mass of a compound similar and how are they different?
Phosphine gas reacts with oxygen according to the following equation: 4PH3(g)+8O2(g)P4O10(s)+6H2O(g) Calculate (a) the mass of tetraphosphorus decaoxide produced from 12.43 mol of phosphine. (b) the mass of PH3 required to form 0.739 mol of steam. (c) the mass of oxygen gas that yields 1.000 g of steam. (d) the mass of oxygen required to react with 20.50 g of hosphine.
When aluminum metal is heated with an element from Group 6A of the periodic table, an ionic compound forms. When the experiment is performed with an unknown Group 6A element, the product is 18.56% AI by mass. What is the formula of the compound?
Set up the mole ratio of CO2to O2.