State what is the mass fraction of fe in the original sample

Assignment Help Chemistry
Reference no: EM13187709

A sample weighing 3.065 g is a mixture of Fe2O3 (molar mass = 159.69) and Al2O3 (molar mass = 101.96). When heat and a stream of H2 gas is applied to the sample, the Fe2O3 reacts to form metallic Fe and H2O(g). The Al2O3 does not react. If the sample residue weighs 2.717 g, what is the mass fraction of Fe2O3 in the original sample?

Reference no: EM13187709

Questions Cloud

Compute the ratio as the conformation present : Calculate the ratio as the conformation present in a higher concentration over the lower one
How many committees of six can be formed : (a) How many committees of six can be formed from the club membership? (b) How many committees will contain at least three men who, in the preliminary survey,favored opening membership to women?
Draw the cash-flow diagram for this situation : What will his annual payment be - construct a loan amortization table, similar to the one shown in table 6-2, showing the principal and interest seperated for the first 6 months of FunSoft's loan.
What factors does the ftc look at to determine deception : What factors does the FTC look at to determine deception? Can business corporations give contributions or expenditures to political candidates? Why is government concerned about the activities of lobbyists?
State what is the mass fraction of fe in the original sample : The Al2O3 does not react. If the sample residue weighs 2.717 g, what is the mass fraction of Fe2O3 in the original sample?
Evaluate the integral over the path c : Evaluate the integral (x+y) over the path C, where C is the straight line segment x=4t, y=(16-4t), z=0 from (0,12,0) to (12,0,0).
Derive the components of the demand curve : Suppose that the current price of oil is $60 per barrel and the quantity sold is 90 million barrels per day. Assume that the supply and demand curves for oil are linear. The current estimates of the price elasticity of supply and demand in the U.S..
Make sure bibliographic reference : That is fine but please make it five instead of 4 papers with summary of the articles books or text or internet not (google)make sure bibliographic reference for each one.
Calculate new equilibrium price resulting from the govt : Suppose that the current price of oil is $60 per barrel and the quantity sold is 90 million barrels per day. Assume that the supply and demand curves for oil are linear. The current estimates of the price elasticity of supply and demand in the U.S..

Reviews

Write a Review

Chemistry Questions & Answers

  State synthesize salicylic acid from o-hydroxybenzonitrile

Write equations to show how you would synthesize salicylic acid

  Mass of carbonates needed to raise solution ph one unit

Mass of Carbonates Needed to Raise Solution pH One Unit, An actual lab titration of a mildly acidic process water at a pH of 4.0 requires 0.9 grams/liter of Na2CO3 to raise the pH from 4.0 to 5.0; re-running the titration but this time using CaCO3..

  State the coordination number of each ion

The ionic radii of Cs+=.174nm, radius of Cl-=.181nm, and the coordination numberof each ion=8, Calculate the lattice parameter

  Explain how much dry solute take to prepare soluions

how much dry solute would you take to prepare each of the following soluions from the dry solute and the solvent? Part A. 124ml of 0.555M KCl. Part B 10g of .530m KCl. Part C 107g of 5.4% KCl solution by mass.

  What is the ph of a solution

What is the pH of a solution that has a formic acid (HCHO2) concentration of 0.39 and a potassium formate (KCHO2) concentration of 0.12? The Ka for formic acid is 1.7 x 10-4.

  What mole ratio of sodium acetate to acetic acid

What mole ratio of sodium acetate to acetic acid, pKa = 4.74, should be used in preparing a buffer solution having a pH of 4.35

  Calculate the enthalpy change

Assume that the specific heat and density of the resulting solution are equal to those of water [4.18 rm J/(g cdot {^circ C}) and 1.00 rm g/mL] and that no heat is lost to the calorimeter itself, nor to the surroundings.

  Side effects of taking non-steroidal anti-inflammatories

One of the side effects of taking non-steroidal anti-inflammatories like aspirin and ibuprofen is a degradation of the integrity of the stomach lining.

  State arsenic trichloride and the rest inerts was dissolved

A 2.721 gram sample containing an unknown amount of arsenic trichloride and the rest inerts was dissolved into a NaHCO3 and HCl aqueous solution.

  How much heat was absorbed

In a calorimeter, 10.0 g of ice melts at 0oC. The enthalpy of fusion of the ice is 334 J/g. How much heat was absorbed?

  Calculate ph of a solution containing moles of tris

Compute pH of a solution containing .030 moles of TRIS and .020 moles of the salt TRISHCl in a total volume of 1.50L

  Explain how many grams of potassium chlorate decompose

How many grams of potassium chlorate decompose to potassium chloride and 510. mL of O2 at 128°C and 652 torr?

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd