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Question 5 What is AHºp for the following reaction? 2H2O2(1) - 2H2O(1) + O2(g) AH® (H2O(l)...
Hydrogen peroxide decomposes into water and oxygen according to the following reaction: 2H2O2(1)→ 2H2O(g) + O2(g) 0.11 g of H2O2 is decomposed in a flask with a volume of 2.50 L. What is the pressure of O2 at 298 K? a. 0.032 atm b. 0.048 atm C. 0.016 atm d. 0.16 atm e. None of the above Predict the signs of AH° and ASº for the following reaction: O2(g) + O2(1) a. + AH°; + AS° b. + AH°; -...
13. 10. Using Hess' law, what is all at 25°C for the following reaction? CIF() + F:(8) - CIF(e) 2CIF) +0.(g) C12O(g) + OF:) A +167.41J mol 2CIF:(e) +20=(8) -- CLO(g) +30F:(8) A +341.46 mol 2F:() +O )-20F.) A -43.4 kJ/mol A 217.5 kJ/mol B. -130.2 kJ/mol c. 217.5 kJ/mol D. -108.7 kJ/mol 465.4 kJ/mol E 11. What is all for the following reaction? 2H:02(1)→ 2H30(1) - O:(8) APKH:O()) --285.8 kJ/mol; AH® (H:0 (D) - -187.6 kJ/mol A.-196.4 kJ/mol B....
The following reaction was performed over water: 2H2O2 (l) -> 2H2O (l) + O2 (g) What volume of "dry O2" was obtained if the amount of H2O2 used was 15.0g at a total pressure of 755.5 mmHg at a temperature of 25°C? The vapor pressure of water is 23.8 mmHg at 25°C.
calculate enthalpy of H for the reaction N2H4(l) + 2H2O(l) -> N2(g) + 4H2)(l) Given the reactions N2H4(l) + O2(g) -> N2(g) + 2H2O(l) Enthalpy of H = -6.22.2 kJ H2(g) + (1/2)O2(g) -> H2O(l) enthalpy of H = -285.8 kJ/mol H2(g) + O2(g) -> H2O2(l) enthalpy of H = -187.8 kJ
Find AH®rxn for the reaction 2Ag2S(s) + 2H2O(0) - 4Ag(s) + 2H2S(g) + O2(g). [AH°F (Ag2S(s)) = -326 kJ/mol; AH+ (H2S(g)) = -20.5 kJ/mol; AHT (H2000) = -285.5 kJ/mol] O 575.2 kJ/mol 0 565.2 kJ/mol O None of the above O 585.2 kJ/mol 0 595.2 kJ/mol
the following first order reaction has a half life of 22.5 minutes. 2H2O2(aq) 2H2O(l) + O2(g) a. calculate the rate constant for this reaction. b. if the initial concentraition of H2O2 is 0.30M, calculate the amout of H2O2 that reamains after 45 min.
1) Find the AH of the following reaction: C(s) + O2(g) à CO2(g) Given the following data: Sro(s) + CO2(g) à SrCO3(s) 2Sro(s) à 2Sr(s) +0,(8) AH = -234 kJ AH = +1184 kJ 2SCO,(s) à 25r(s) + 2C(s) + 302(g) AH = +2440 kJ 2) Find the AH of the following reaction: 3NO,(g) + H2O(l) à 2HNO,(aq) + NO(g) Given the following data: 2NO(g) + O2(g) à 2NO(g) AH=-116 kJ 2N2(g) + 502(g) + 2H2O(l) à 4HNO3(aq) AH =...
5. Using standard heats of formation, calculate AH for 4 FeO (s) + O2(g) → 2 Fe2O3 (s) AH1 of FeO (s) = -272.0 kJ/mol AHºf of Fe2O3 (s) = -825.5 kJ/mol 3. Given 3 C (s) + 4 H2(g) → C3H8 (9) AH = -103.85 kJ/mol C(s) + O2(g) + CO2(g) AH = -393.5 kJ/mol H2 (g) + 12 O2(g) → H2O (1) AH = -285.8 kJ/mol find AH for C3H8 (g) + 5 O2(g) → 3 CO2 (g)...
Given the following standard enthalpy of formations: AH [C,H,OH() --277.7 kJ/mol; AH(CH3CO,H() = -484.5 kJ/mol); AH® [H2O(1) --285.8 kJ/mol]; AH [O2(g) - 0 kJ/mol). Calculate the AHan for the reaction. C,H,OH(I)+,(g) → CH,CO,H(1) + H2O(l)
(ii) Calculate AH° for the reaction N2H4(1) + O2(g) → N2(g) + 2H2O(1) using the data given below: 2NH3(g) + 3N2O(g) → 4N2(g) + 3H2O(1) N2O(g) + 3H2(g) → N2H4(l) + H2O(1) 2NH3(g) + O2(g) → N2H4(1) + H2O(1) H2(g) + 1/2O2(g) → H2O(1) AH° = -1010. kJ AH° = -317 kJ AH° = -143 kJ AH° = -286 kJ