Question: Hydrogen gives off 120 J g of energy when burned
Hydrogen gives off 120 J/ g of energy when burned in oxygen, and methane gives off 50 J/ g under the same circumstances. If a mixture of 5.0 g hydrogen and 10. g methane is burned, and the heat released is transferred to 50.0 g water at 25.0oC, what final temperature will be reached by the water?
Answer to relevant QuestionsIn a coffee cup calorimeter, 50.0 mL of 0.100 M AgNO3 and 50.0 mL of 0.100 M HCl are mixed. The following reaction occurs: Ag+(aq) + Cl2(aq) → AgCl(s) Combustion of table sugar produces CO2(g) and H2O(l). When 1.46 g of table sugar is combusted in a constant-volume (bomb) calorimeter, 24.00 kJ of heat is liberated. a. Assuming that table sugar is pure sucrose ...Given the following data: Ca(s) + 2C(graphite) → CaC2(s) ΔH = –62.8 kJ Ca(s) + ½ O2(g) → CaO(s) ΔH = –635.5 kJ CaO(s) + H2O(l) → Ca(OH)2(aq) ΔH = –653.1 kJ C2H2(g) + 5/2 O2(g) → 2CO2(g) 1 H2O(l) ΔH = ...The combustion of methane can be represented as follows: a. Use the information given above to determine the value of ΔH for the combustion of methane to form CO2(g) and 2H2O(l). b. What is ΔHof for an element in its ...Use the reaction 2ClF3(g) + 2NH3(g) → N2(g) + 6HF(g) + Cl2(g) ΔHo = –1196 kJ to calculate ΔHof for ClF3(g).
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