1. The organic solvent thiophene is a carbon-hydrogen-sulfur compound that yields CO2, H2O, and SO2 when burned in the presence of oxygen. When subjected to combustion analysis, a 1.3020g sample of thiophene produces 2.7224g CO2, 0.5575g H2O, and 0.9915g SO2. What is the empirical formula of thiophene?

1. The organic solvent thiophene is a carbon-hydrogen-sulfur compound that yields CO2, H2O, and SO2 when burned in the presence of oxygen. When subjected to combustion analysis, a 1.3020g sample of thiophene produces 2.7224g CO2, 0.5575g H2O, and 0.9915g SO2. What is the empirical formula of thiophene?

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter22: Organic And Biological Molecules

Section: Chapter Questions

Problem 157CP

See similar textbooks

Similar questions

The use of silica to form slag in the production of phospho-rus from phosphate rock was introduced by Robert Boyle morethan 300 years ago. When fluorapatite [Ca₅(PO₄)₃F] is used inphosphorus production, most of the fluorine atoms appear in theslag, but some end up in toxic and corrosive SiF₄ (g).(a) If 15% by mass of the fluorine in 100. kg of Ca₅(PO₄)₃F forms SiF₄, what volume of this gas is collected at 1.00 atm andthe industrial furnace temperature of 1450.°C?(b) In some facilities, the SiF₄ is used to produce sodium hexa-fluorosilicate (Na₄SiF₆) which is sold for water fluoridation: 2SiF₄(g)+Na₂CO₃(s)+H₂O(l) →Na₂SiF₆(aq)+SiO₂(s)+CO₂(g)+2HF(aq) How many cubic meters of drinking water can be fluoridated toa level of 1.0 ppm of Fusing the SiF₄ produced in part (a)?
Acetylene (C2H2) and nitrogen (N2) both contain a triplebond, but they differ greatly in their chemical properties.(a) Write the Lewis structures for the two substances. (b) By referring to Appendix C, look up the enthalpies of formationof acetylene and nitrogen. Which compound is more stable?(c) Write balanced chemical equations for the completeoxidation of N2 to form N2O5(g) and of acetylene to formCO2(g) and H2O(g). (d) Calculate the enthalpy of oxidationper mole for N2 and for C2H2 (the enthalpy of formationof N2O5(g) is 11.30 kJ/mol). (e) Both N2 and C2H2 possesstriple bonds with quite high bond enthalpies (Table 8.3).Calculate the enthalpy of hydrogenation per mole for bothcompounds: acetylene plus H2 to make methane, CH4;nitrogen plus H2 to make ammonia, NH3.
Acetylene gas, C2H21g2, is used in welding. (a) Write a balanced equation for the combustion of acetylene gas to CO21g2 and H2O1l2.
In a combustion chamber containing 5 L of carbon monoxide and 2.5L of oxygen is ignited at 298 K and 1 atmosphere pressure. Assuming complete combustion and no loss of gas, what will be the volume of carbon dioxide formed at 298 K and 1 atmosphere pressure?
What bonds does NH4Cl consist of?
Calculate the percentage (%) of C and O in C5H10N2O3
At the end of 2009, global population was about 6.8 billion people. What mass of glucose (C6H12O6) in kg would be needed to provide 1500 Cal/person/day of nourishment to the global population for one year? Assume that glucose is metabolized entirely to CO2 and H2O(l). v
Consider the reaction between H3PO4 and NH3 to produce (NH4)2HPO4. (a) What mass of ammonia would have to be added to 31.5 g of phosphoric acid if a 25% excess of ammonia is required? g(b) What is the theoretical yield of (NH4)2HPO4 under the conditions given in Part (a)?
27. 1.20 g of a gas compound containing C, H and S in 2.10 L. flask has the pressure of 108 mmHg at the temperature of 25oC . 1.00 g of the compound is burned in pure oxygen produces 2.24 g CO2 and 0.551 g H2O. 0.480 g of the compound produces 0.313 g SO2. Calculate the molecular formula of the compound. C = 12.01 g/mole , H = 1.00 g/mole, S = 32.07 g/mole, O = 16.00 g/mole Group of answer choices a.CH3S b.CHS c.C2H3S2 d.C5H6S
27. 1.20 g of a gas compound containing C, H and S in 2.10 L. flask has the pressure of 108 mmHg at the temperature of 25oC . 1.00 g of the compound is burned in pure oxygen produces 2.24 g CO2 and 0.551 g H2O. 0.480 g of the compound produces 0.313 g SO2. Calculate the molecular formula of the compound. C = 12.01 g/mole , H = 1.00 g/mole, S = 32.07 g/mole, O = 16.00 g/mole a.CH3S b.CHS c.C2H3S2 d.C5H6S
a. Hydrogen Sulphide (H2S) is a by-product often associated with 0il & Gas exploration and the refining industries. Explain the dangers of this substance and what Personal Protection Equipment (PPE) should be used, to aid survival when coming into contact with this substance.
Write the combustion reaction of C6H14+O2—->CO2+H2O