Explain the gas produced to escape before the mass

Assignment Help Chemistry
Reference no: EM13495253

Researchers analyzing an unknown hydrocarbon with chemical formula CxHy found that 225 grams of O2(g) were required for complete combustion of 1.0 mol CxHy, to form CO2(g) and H2O(g) only. Unfortunately, a faulty valve between the furnace and absorbers allowed some of the gas produced to escape before the mass of CO2(g) and H2O(g) were measured. The researchers also know from previous reactivity experiments that CxHy has at least one ?-­?bond. It will take at least a week to have a replacement valve sent from the manufacturer, but the grant proposal, which requires the molecular formula, is due on Monday. Can you help determine the molecular formula of the compound? [Hint: from the balanced equation for the complete combustion of CxHy it is possible relate the moles of O2(g) required to the unknown subscripts x and y. Then see if you can find a formula satisfying the relationship.]

Reference no: EM13495253

Questions Cloud

Explain treatment with concentrated sulfuric acid : A compound has the empirical formula CoCl3 x 4NH3. One mole of the compund yields one mole of silver chloride when treated with silver nitrate. Ammonia is not removed by treatment with concentrated sulfuric acid. The formula for the compund is bes..
Explain producing hydrogen atoms from h2 molecules : Producing hydrogen atoms from H2 molecules requires 436 kJ/mol to break H-­?H bonds. For the longest-­?wavelength photon capable of breaking a single H-­?H bond, calculate
Calculate the electric flux through the window : Consider a square window of side L=1.00m that lies in the plane of the blackboard at the front of the classroom. calculate the electric flux through the window
Calculate the frequency of the light : A laser used in a rock concert emits a red light with a wavelength of 721 nm. Calculate the frequency of the light
Explain the gas produced to escape before the mass : Researchers analyzing an unknown hydrocarbon with chemical formula CxHy found that 225 grams of O2(g) were required for complete combustion of 1.0 mol CxHy, to form CO2(g) and H2O(g) only. Unfortunately, a faulty valve between the furnace and abso..
Explain the first ionization potential of potassium : The first ionization potential of potassium is 419 kJ/mol. If UV-­?radiation with wavelength ? = 250 nm is used to eject electrons from potassium
Define the combustion of one mole of ethanol : Estimate the enthalpy change for the combustion of one mole of ethanol (C2H5OH) using average bond dissociation enthalpies (in KJ/mol) for C-­H: 413, O-­?H: 463, C-­O: 358, C-­C: 154, C=O: 122, and O=O: 498.
Find the value of the inductance : A series RCL circuit contains a 5.44-µF capacitor and a generator whose voltage is 11.6 V. Find the value of the inductance
How far is that person away from the wall : A person in a cave emits a sound and receives an echo 2.5 seconds later. How far is that person away from the wall

Reviews

Write a Review

Chemistry Questions & Answers

  Calculate the mass of urea

Calculate the mass of urea that should be dissolved in 225 g of water at 35°C to produce a solution with a vapor pressure of 37.1 mmHg.

  Calculate the final temperature

Calculate the final temperature that results when a 13.0 -g sample of water at 23.1C absorbs 870 J of heat.

  State halfway to the equivalence point in the titration

What is the volume in mL of 0.833 M HCl(aq) needed to reach halfway to the equivalence (stoichiometric) point in the titration of 23.5 mL of 0.270 M ethylamine

  What is the volume of the tank

A tank is first evacuated, and then connected to a 75.0 L cylinder of compressed nitrogen gas. The gas pressure in the cylinder, originally at 15.8 atm, falls to 1.05 atm without a change in temperature. What is the volume of the tank?

  Explain and predict the products of the reactions

Predict the products of the following reactions: W(CO)5[C(C5H52)(OC2H5)] +BF3 ? (C5Me5)Rh(CO)2? Will I know that the final answer has to be: W(CO)5[C(C5H5)(OC2H5)] +BF3 ? [(CO)5W?CC6H5]+ +F-+F2BOC2H5 (C5Me5)Rh(CO)2? [(C5Me5)Rh(CO)]2 +2CO

  Define where the covalent bonds are and draw the structure

If it is Ionic, mention which is the cation and which is the anion. Discuss how the ions formed (gaining or losing electrons and how many). If it is covalent, discuss where the covalent bonds are and draw the structure.

  Explain fraction of collisions with sufficient energy

An increase in which of the following will occur if the reaction temperature is increased? I. Energy of activation II. Collision frequency III. Fraction of collisions with sufficient energy

  If 500g of potassium chlorate solid decomposes and

if 500g of potassium chlorate solid decomposes and produces 303g of potassium chloride solid how many grams of oxygen

  Calculate how many grams of quicklime can be produced

limestone is decomposed by heating to quicklime and carbon dioxide. Calculate how many grams of quicklime can be produced from 1.0 kg o limestone.

  What is the theoretical yield of aluminum oxide

what is the theoretical yield of aluminum oxide if 2.40 mol of aluminum metal is exposed to 2.10 mol of oxygen

  Explain a solution is prepared by dissolving of water

A solution is prepared by dissolving 0.400 g of solute in 1000.g of water how many parts per million of solute are in this solution

  Explain what is the molar flow rate of the gas in mol/h

A gas mixture containing 80.0 mol% N2 and the remainder n-heptane flows through a pipe at a rate of 10.0 m3/h. The pressure is 0.90 atm and the temperature is 100°C. a. What is the molar flow rate of the gas in mol/h

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