Bar of gold

You have purchased a 5 oz. bar of gold (100% pure), at a cost of 400/oz. Because the bar was weighed in air, you conclude that you got a bargain, because its true mass is greater than 5 oz due to the buoyancy of air. If the true density of the gold is 1.9000 g/cm3, what is the actual value of the bar based upon its true mass ... 

Three pirates arrived on an island after successfully relieving a merchant of his bars of gold. The pirates put their booty in a pile in the center of the island and all fell asleep while guarding the gold. After a while, the first pirate woke up and decided to take his share of the gold and hide it. So he buried his fair share of the gold bars under a palm tree and went back to sleep. 

The second pirate woke up and took what he thought was his fair share and buried those gold bars next to a boulder. He then went back to sleep, too. Then the third pirate awoke, took what he thought was his fair share, and hid it under a boat. He went back to sleep. In the morning, all three pirates woke up and discovered that there were eight bars of gold in the pile. How many bars were in the pile in the beginning ... 

Answer Working backward, the 8 bars that remained must have been two-thirds of what was there when the third pirate did the splitting up. So the third pirate saw 12 bars, took his 4, and left 8. If the second pirate left 12 bars, then 12 was two-thirds of what he saw, so he saw 18 bars — he took 6 and left 12. The first pirate left 18 bars, which was two-thirds of what was there in the beginning. One-third of 27 is 9, leaving 18 bars. There were 27 bars of gold when the pirates all went to sleep. 

Today, we know that elements fit into a periodic pattern because they are made of atoms, just as Democritus suspected. An atom is the smallest particle of an element that still has all the properties of that element. In other words, an atom of gold is no different from a bar of gold except that the atom is much smaller. 

Third, and possibly most important, gold cannot be traced, although any bank transfer ultimately can. One bar of gold looks like any other changing a bank balance into gold or diamonds, and then changing it back into a bank balance, is like crossing a river to avoid bloodhounds. 

Calculate the price of a 3.00-kg bar of gold if the price of gold is 600 per troy ounce. 

In 1601 Seton had given shelter to a Dutch sea captain, Jacob Haussen, whose ship had been driven ashore near Seton s house in Scotland. The following year, Seton turned up at Haussen s home in Enkhuisen, and confided to him that he was an adept. He said he had a mission to teach the art of transmutation. Before he left, he prepared for the skeptical sailor a bar of gold, and cut a time and date into it with a steel point. It was 4 p.m. on the afternoon of March 13, 1602. 

Touch needle A small bar of gold, either pure, or alloyed with silver in a known proportion, for trying the fineness of a gold or sliver article by comparing the streaks made by the article and the bar on a touchstone. Touch paper 2059 Paper impregnated with potassium nitrate. It bums steadily without flame and is used for Igrrltlng fireworks. Saltpeter paper. Touchstone 3190 A stone or piece of black pottery used for assaying. 

Item 7 In the cavity of the Old House of Tribute, in the Platform of the Chain sixty-five bars of gold. 

A thief plans to steal a bar of gold from a woman s purse and replace it with a bag of sand. Assume that the volumes of the gold and the sand are 350 ml each and that the density of sand is 3.00 g/cm. ... 

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