This experiment will test the suggestion that the enthalpy change between a metal and a solution of a salt is related to the relative position of the two metals in the reactivity. Presumably the further apart in the series the bigger the enthalpy change will be. The experiment is as follows‚ 1) Zn(s) + CuSO4(aq) ZnSO4(aq) + Cu(s) 2) Zn(s) + Pb(NO3)2(aq) Zn(NO3)2 (aq) + Pb(s) Both of the solutions will be in 1mol.dm-3 Apparatus: Distilled Water Polystyrene Cup
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Pearl Harbour The attack on Pearl Harbour began on the morning of the 7th of December‚ 1941. It was set to be a surprise military attack by the Imperial Japanese Navy against the naval base of the United States of America in Hawaii’s Pearl Harbour. The attack ended with the United States joining World War II. A war between the United States of America and Japan had become a possibility since the 1920’s with both countries having a plan if one should happen. The possibility grew massively when Japan
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Separation Challenge Problem: Salt‚ sand‚ wood chips‚ iron filings Materials Needed: a magnet‚ water‚ a pot‚ clean flat surfaces‚ a burner‚ filter paper‚ a stirrer‚ and four beakers for each item in the mixture Plan Brainstorm: Separate the items one by one using their different properties. Final Plan: To separate sand‚ salt‚ wood chips and iron filings First‚ use a magnet to remove the iron. Since some sand/salt will get caught with the iron filings‚ you may have to spread out the separated
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"Battle Between Countries" On December 7‚ 1941‚ America was attacked by Japan at Pearl Harbor. This day changed America forever. This was the start of Japan entering WWII. Japan killed over 3‚000 American soldiers. This caused a major change in the US economy. This attack was a surprise‚ and not called for. This was a very dreadful moment for many Americans. The bombing of Pearl Harbor was not justified. America at the time was not involved for WWII at the time of its attack.
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Shark Island Shark Island is a small island located in Sydney Harbour‚ Australia. It lies between the Harbour Bridge and the harbour entrance‚ offshore of the suburbs of Vaucluse‚ Point Piper and Rose Bay. The Island‚ at 1.25 hectares‚ is said to have resembled a shark and the shallow waters around it presented a constant danger to shipping. This is how it got its name. Physical Environment of Shark Island Weather & Climate The weather on Shark Island that day varied a lot. It was overcast
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Comparatively‚ the Japanese acquired 271‚000 troops in Manchuria with plans to offensively attack and divert the Russian infantry into eastern Manchuria. Ironically‚ the Russian military also planned to carry out an offensive attack against the Japanese. The Japanese developed a plan which‚ if executed correctly would push the Russians backward. However‚ if the Japanese had difficulties synchronizing their attacks‚ the Russians would have an opportunity to maintain their position allowing them
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Abraham Lincoln once said‚ “ America will never be destroyed from the outside‚ but if we do falter to our nation it is because we cause it.” This quote is telling us that if America ever falls one day‚ it is because we have made the cause of it. This is related as to Franklin Delano Roosevelt. For instance‚ The Vice president had said‚ that the United States was a peace of Nation until it was deliberately attacked by the naval and air forces of the empire of Japan. Overall‚ the empire of Japan wanted
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hostile note. We’re one of the people to blame about Pearl Harbor. 6.) The U.S.S. Arizona deals with the worst of the blows. A 1‚760-pound bomb struck it‚ and the ammunition on board exploded killing 1‚177 servicemen. Today‚ there is a memorial spanning the sunken remains of the Arizona dedicated to the memory of all those lost in the bombing. 5.) The aftermath of the bombings. Of the approximate 100 U.S. Navy ships present in the harbor that day‚ eight battleships were damaged with five sunk. Eleven
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fluctuations. And since every living creature in any saltwater fish tank is taken from the ocean‚ you can maintain the stability of the environment by monitoring the PH‚ temperature‚ lighting‚ and salinity. A one degree increase in temperature in a salt water fish tank could cause the fish and reefs to become ill and shocked. Therefore‚ you must monitor the heater in your tank to make sure it is functioning properly. The proper temperature in a saltwater fish tank‚ no matter how many gallons it
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Ranking Salt Solutions by pH 6-2: Ranking Salt Solutions by pH In this assignment you will be asked to rank aqueous solutions of acids‚ bases‚ and salts in order of increasing pH. This is most easily done by first identifying the strong acids that have the lowest pH‚ the strong bases that have the highest pH‚ and the neutral solutions that have a pH near 7. The weak acids will have a pH between 1 and 6 and the weak bases between 8 and 14. The exact order of weak acids and
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