ABSTRACT: The electrophilic aromatic substitution reaction is the attack of a benzene ring on an electrophilic species resulting in the substitution of a proton with a functional group. The electrophilic aromatic substitution reaction nitration is used to nitrate methyl benzoate and acetanilide with a nitronium ion. Crystallization was used to purify the product. The melting point was used to determine its purity and the regiochemistry of the products. The methyl benzoate reaction product‚ methyl
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Pearl Harbor was an American naval base based in Honolulu‚ Hawaii which harbored eight American battle ships. Just before 8:00 AM on December 7th‚ 1941‚ Pearl Harbor was attacked by Japanese fighter planes. The attack lasted just two hours but left severe damages too many people stationed there‚ ships‚ planes‚ and the American people. The attack came as a surprise for the people of America and the men and women stationed at the naval base. Japanese fighter planes successfully destroyed twenty American
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noncommunist Republic of Vietnam (South Vietnam). North Vietnamese and Communist-trained South Vietnamese rebels sought to overthrow the government of South Vietnam and reunite the country. The United States became involved in 1964‚ when North Vietnamese torpedo boats attacked the U.S. destroyer Maddox‚ which was monitoring off the coast of Vietnam in the Gulf of Tonkin. Although there is discrepancy over whether this event actually occurred‚ it was because of this event that President Johnson ordered air
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our 35th President‚ and he was still assassinated even though he was liked by many people. In 1941 JFK joined the U.S. Navy‚ after two years he was then sent to the South Pacific. While he was there he was given order of a PT boat‚ or a Patrol-Torpedo boat. “In August 1943‚ a Japanese destroyer struck the craft‚ PT-109‚ in the Solomon Islands. Kennedy helped some of his marooned crew back to safety‚
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canal. It was also perfect because the U.S could release battleships straight into the ocean from the base. How did it happen? The attack on Pearl Harbor was led by Commander Mitsuo Fuchida. Wave one consisted of 183 fighters such as bombers and torpedo bombers. The attack started at 7:55 a.m. wave number two consisted of 170 planes an attacked Pearl Harbor at 8:54 a.m. during the 2 waves submarines were also attacking Pearl Harbor. The Japanese fighters took off from aircraft carries Akaga‚ Kaga
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GYMNOSPERMS - phlya Ginkgophyta‚ Gnetophyta‚ Cycadophyta and Coniferophyta - vascular plants with true roots - gymnosperms = “naked seeds” - cones/strobili - have seeds that develop on the surfaces of sporophylls instead of in ovaries like angiosperms - microsporangium produces pollen grains (sperm) and the megasporangium produces the egg - sporophyte generation is dominant - no water needed for fertilization – pollen travels with the wind Pine trees
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the two attack waves‚ and the remainder were used as combat air patrol. Combat air patrol was responsible for making sure that Japanese bombers were protected from American aircraft. The Japanese used torpedoes to destroy the American fleet. The torpedos were specifically designed to be effective in shallow waters‚ they were equipped with an anti-roll mechanism and a rudder extension. The Japanese were successful in sinking 18 ships‚ including 5 battleships and destroyed about 300 airplanes. The
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During the 1910’s‚ European countries had a huge conflict arising between 9 main countries. 6 of those countries had created the Triple Alliance‚ and the other 3 created the Triple Entente. These countries had fought on for a couple of years until the American Congress had chosen to send American troops because of a rising conflict with Germany. Most Americans believed that the entry of the U.S into WW1 was inevitable‚ especially the fact that they would join the Allies side. I believe that the entry
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When historians are asked when the birth of modern warfare occurred‚ they would all say World War II. World War II updated how war is fought to the way that many subsequent wars are fought even to this day. The Second World War was the first major war that involved many naval battles in the Atlantic and Pacific Oceans. The four major players of such naval warfare were Britain‚ Germany‚ United States‚ and Japan. Only these countries set up navy forces of any significance‚ which to the surprise of
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PROSPECT OF UNMANNED UNDERWATER VEHICLE (UUV) IN BANGLADESH NAVY Introduction 1. Every country is guarded externally and internally by plethora of armed forces. Army guards a country’s land‚ Air force is for air field and water territory is guarded by fleet of Ships known as Navy or maritime Forces. Mankind fought their wars amongst waters for preeminence over each other. In modern times‚ every country maintains forces for the defense and navy is accountable for safeguarding a country’s shores
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