The bombardier beetle uses an explosive discharge as a Efensive measure. The chemical reaction involved is the
Question:
C6H4(OH)2(aq) + H2O2(aq) → C6H4O2(aq) + 2H2O(l)
Calculate ΔH for this reaction from the following data:
C6H4(OH)2(aq) → C6H4O2(aq) + H2(g) ΔH = 177.4 kJ
H2(g) + O2(g) → H2O2(aq) ΔH = –191.2 kJ
H2(g) + ½ O2(g) → H2O(g) ΔH = –241.8 kJ
H2O(g) → H2O(l) ΔH = –43.8 kJ
Step by Step Answer:
C 6 H 4 OH 2 C 6 H 4 O 2 H 2 H 1774 kJ H 2 O 2 ...View the full answer
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Hydrogen peroxide can be used as a mild antiseptic to curb superficial skin infections such as athlete’s foot, but only in diluted quantities. To combat stinky feet, try soaking your feet in a solution of 1 part 3% hydrogen peroxide and 3 parts warm water for 15-20 minutes, then drying them thoroughly. This will kill odor-causing bacteria and soften your feet. To treat athlete\'s foot, you can use a similar solution, but only in diluted quantities, and soak your feet for 30 minutes. Hydrogen peroxide can also be used to keep vegetables fresh by adding 1/4 cup to a bowl of cold water, soaking the vegetables for 20-30 minutes, then draining, drying, and refrigerating them. Alternatively, you can spray vegetables with a solution of 3% hydrogen peroxide and let them stand for a few minutes before rinsing and drying. To keep leftover salad fresh, spray it with a solution of 1/2 cup water and 1 Tbsp. 3% hydrogen peroxide, drain, cover, and refrigerate.
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