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Trinitroglycerin, C3H5N3O9 (usually referred to simply as nitroglycerin), has been widely used as an explosive. Alfred Nobel used

it to make dynamite in 1866. Rather surprisingly, it also is used as a medication, to relieve angina (chest pains resulting from

partially blocked arteries to the heart) by dilating the blood vessels. At 1 atm pressure and 25 °C, the enthalpy of decomposition

of trinitroglycerin to form nitrogen gas, carbon dioxide gas, liquid water, and oxygen gas is -1541.4 kJ/mol.

(a) Write a balanced chemical equation for the decomposition of trinitroglycerin.

(b) Calculate the standard heat of formation of trinitroglycerin.

(c) A standard dose of trinitroglycerin for relief of angina is 0.60 mg. If the sample is eventually oxidized in the body (not explosively,

though!) to nitrogen gas, carbon dioxide gas, and liquid water, what number of calories is released?

(d) One common form of trinitroglycerin melts at about 3 °C. From this information and the formula for the substance, would you

expect it to be a molecular or ionic compound? Explain.

(e) Describe the various conversions of forms of energy when trinitroglycerin is used as an explosive to break rockfaces in highway

construction.

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The compound Trinitroglycerin is a molecular compound

What is Trinitroglycerin?

The compound Trinitroglycerin is basically used as an explosive. It could decompose following the equation;

a) [tex]4C_{3} H_{5} N_{3} O_{9} (l)--- > 12CO_{2} (g) + 10H_{2} O(g) + 6N_{2} (g) + O_{2} (g)[/tex]

b) We can see that the decomposition of the compound Trinitroglycerin produces -1541.4 kJ/mol of energy hence 1541.4 kJ/mol is the enthalpy of formation of the compound.

c) Number of moles in 0.6 mg of the compound = 0.6 * 10^-3 g/227 g/mol

= 2.6 * 10^-6 moles

If 4 mole of the compound produces 1541.4 kJ of heat

2.6 * 10^-6 moles of the compound produces  2.6 * 10^-6 moles * 1541.4 kJ/4 mole

= 1 * 10^-3 kJ or 1 J

If 1 Cal = 4.184 J

x = 1 J

x = 0.24 cal

d) The compound is a molecular compound

e) When trinitroglycerin is used as an explosive to break rockfaces in highway construction, chemical energy is converted to heat, light, sound and mechanical energy.

Learn more about trinitroglycerin:https://brainly.com/question/16879324

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