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World of Chemistry, 3rd edition

3rd Edition

ISBN:9781133109655

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

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

Chapter2: Matter

Section: Chapter Questions

Problem 29A

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Similar questions

Convert 200C into K
O N SCH₂COCH, CHCO CHCOCH₂- OH -NO₂ CH₂ SOCI₂ N 0 °C CH,
2
Rank the elements or compounds in the table below in decreasing order of their boiling points. That is, choose 1 next to the substance with the highest boiling point, choose 2 next to the substance with the next highest boiling point, and so on.
CH₂ 0=$=0 Ar 18OH HOgt 150 °C CH₂ НО HOT se Eq Eq.
H₂N H₂N NH₂ H₂NOC HN -Ho Ho H₂NOC O Flo HN. H₂C H₂NOC OH HN O CO₂H NaOH/H₂O CF CO H H₂O+
Order these chemical species by increasing pH of an 0.1 M aqueous solution of each. That is, imagine making an 0.1 M solution of each species. Select1 next to the species that makes the solution with the lowest pH. Select 2 next to the species that makes the solution with the next higher pH, and so on. Notice that some of the rankings have been filled in for you already. Also notice that water is on the list. For that particular case, just compare the pH of pure water to the pH of the other solutions. Note for advanced students: for all charged species, you may assume the necessary counterions act as neither acids nor bases. relative pH of 0.1 M aqueous solution species H20 4 H,PO4 HNO, (Choose one) NO2 7 OH (Choose one) HF (Choose one) ▼
2 CIF(g) + O2(g) 2 CIF3(g) + 2 O2(g)- 2F2(g) + O2(g) - Cl20(g) + F2(g) Cl20(g) + 3 F2O(g) 2 F20(g) AH = 167.4 kJ AH = 341.4 kJ %3D AH = -43.4 kJ Calculate AH for the reaction CIF(g) + F2(g) CIF3(g)
Given that H₂(g) + F₂(g) → 2 HF(g) 2 H₂(g) + O₂(g) →→→ 2H₂O(1) calculate the value of AHF for AHin AH = -571.6 kJ 2F₂(g) + 2 H₂O(1)→→→ 4 HF(g) + O₂(g) Alisa = -546.6 kJ kJ
reach 11. Benzene is one of the compounds used as octane enhancers in unleaded gasoline. It is manufactured by the catalytic conversion of acetylene to benzene: 3C₂ H₂(g) = C6H6(g). Which value of Ke would make this reaction most useful commercially? K₂ = 0.01, Ke = 1, or Ke = 10. Explain your answer. Chow th onic ionio ogu sical cou on the
Ff.281.
2 NOCI(g) → 2 NO(g) +Cl2(g) AH° =+75.56 kJ 2 NO(g) + 02(g) → 2 NO2(g) AH° =-113.05 kJ 2 NO2(g) → N2O4(g)AH° =-58.03 kJ Compute AH° of N2O4(g) +Cl2(g) → 2 NOCI(g) + O2(g) in kJ. +246.65 -95.52 -246.65 +95.52 +47.76

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