Homework Answers
moles of H2O2 = mass/molar mass = 25/34.01 = 0.735 mol
From the given reaction
2H2O2(l) -------> 2H2O(l) +O2(g) , ∆Hrxn = -196KJ
2 mol of H2O2 released = -196 KJ heat
0.735 mll of H2O2 released = (-196/2)*0.735 = -72.03 or -72.0 KJ ......... Answer
So, option (iii) is correct.
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Liquid hydrogen peroxide, an oxidizing agent in many rocket fuel mixtures, releases oxygen gas on decomposition: 2 H2021 2 H20(1) + O2(g) AHxn-196.1 kJ Calculate the heat for the decomposition of 449 kg of H202. 9.08 x 10 kJ (Enter your answer in scientific notation.)
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Liquid hydrogen peroxide, an oxidizing agent in many rocket fuel mixtures, releases oxyg decomposition: 2 H,02(+ 2 H2O(1) + O2(g) AH rx = -196.1 kJ Calculate the heat for the decomposition of 315 kg of H202. * 10 kJ (Enter your answer in scientific notation.)
Be sure to answer all parts. Liquid hydrogen peroxide, an oxidizing agent in many rocket fuel mixtures, releases oxygen gas on decomposition: 2 H2O2(1) + 2 H2O(1) + O2(g) AHpxn=-196.1 kJ Calculate the heat for the decomposition of 384 kg of H2O2. x 10 kJ (Enter your answer in scientific notation.)
Be sure to answer all parts. Liquid hydrogen peroxide, an oxidizing agent in many rocket fuel mixtures, releases oxygen gas on decomposition: 2 H2O2(1)→ 2H2O(1) + O2(g) AH r = -196.1 kJ Calculate the heat for the decomposition of 587 kg of H2O2. x 10 kJ (Enter your answer in scientific notation.)
Can anyone show me the correct answer?
Be sure to answer all parts. Liquid hydrogen peroxide, an oxidizing agent in many rocket fuel mixtures, releases oxygen gas on decomposition: 2 H202(1) >2 H,0(l) + 02(g) How much heat is released when 470. kg of H20, decomposes? 1.36 x 10kJ (Enter your answer in scientific notation.) You are out of attempts for this question.
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