Analysis of Silver in an Alloy Quinn Kelly Kevin Hoover 9/12/12 PURPOSE The purpose of this lab was to analyze the amount of silver in an alloy using quantitative and qualitative observations. PROCEDURE 1. Prepare the Funnel and Filter Paper • Place the filter paper in the Buchner funnel‚ turn the water on and wet the filter paper with the acid wash. 2. Find the Mass
Premium Chlorine Ammonia Sodium chloride
Porter’s 5 Forces for Li Ning | Li Ning | | | H for high force‚ L for low force | Match | Intensity of Competitive Rivalry | Number of competitors | H | 1 | | Industry growth rate | H | 0 | | Fixed costs (generally low in IT) | H | 1 | | Storage costs (generally low in IT) | H | 1 | | Product differentiation | H | 0 | | Switching costs | l | 1 | | Exit barriers | H | 1 | | Strategic stakes | H |
Premium Brand Brand management Marketing
Ap Chem. Period 7 9/14/2014 Analysis of Silver in an Alloy Purpose- To determine silver content of an alloy and to calculate the percent silver in the alloy. Materials Chemicals •Silver-Copper Alloy •Nitric Acid (NHO3) •Baking Soda (NaHCO3)(s) •Sodium Chloride (NaCl)(s) Equipment •Beakers‚ 100 and 250 mL •Filter Flask and Walter’s adapter •Stirring Rod •Wash Bottle •Watch Glass •Crucible Tongs •Ring Stand‚ Ring‚ Wire gauze •Bunsen Burner •Graduated Cylinder •Rubber or Plastic
Premium Chlorine Sodium chloride Hydrochloric acid
When you mix copper‚ silver‚ and nitrate together‚ you will end up with silver nitrate solution will turn blue (it has become copper nitrate). On the piece of copper‚ there would be a coating of solid silver. If a chemical reaction is going to be observed when chemicals are mixed‚ heated or any other means of altering the substance‚ then we will be able to predict the products formed. If it is observed that in the original versus the changed substance no new substances are formed‚ the change is reversible
Premium Chemistry Chemical reaction Sodium chloride
Silver is a very ductile and malleable metal used for thousands of years utensils‚ for trade‚ and as the basis for many monetary systems. Its value as a precious metal was long considered second only to gold. In Ancient Egypt and Medieval Europe‚ it was often more valuable than gold. Silver is currently about 1/50th the price of gold by mass‚ and 70 times more valuable than copper. Silver did once trade at 1/6th to 1/12th the price of gold‚ however‚ the discovery of great silver deposits in the
Premium Gold Cost Silver
The discovery of silver in Colonial America sparked a spanish global flow of silver as well as from the mines of Tokugawa‚ Japan. Although Spain was the primary distributer of silver‚ this global flow limited economic growth by creating an influx on silver. Peasants and people from lower classes were highly affected due to the fact that silver was required in an everyday basis but wasn’t provided for them. The Spanish‚ and the japanese served as providers of silver to the chinese economy. Throughout
Premium Ming Dynasty Economics China
Analysis of Silver in an Alloy Introduction In this experiment an alloy of silver will be analyzed to determine its silver content. The silver-copper alloy will be dissolved in nitric acid‚ the silver will be precipitated as silver chloride‚ and the silver chloride will be filtered‚ washed‚ dried and its mass determined. From the mass of the silver chloride formed and the mass of the original sample‚ you will be able to calculate the percent of silver in the alloy. Because the results are
Premium Sodium chloride Chlorine Ammonia
Copper-Silver Nitrate Reaction Introduction In this experiment copper wire will be placed in a solution of silver nitrate. This single replacement reaction will produce a blue solution of copper II nitrate and solid silver. By weighing the reactants before the reaction‚ the mass of silver produced can be predicted. This theoretical yield can be compared to the actual yield of silver. Purpose Students will compare the theoretical mass of silver with the actual mass of silver from the single
Premium Silver Stoichiometry Copper
In this experiment‚ we have silver oxide and by using a bunsen burner‚ we will drive off all of the oxygen in the compound. We will do this by heating the silver oxide until the substance’s mass stays constant to know when all of the oxygen possible has been driven out. This process will occur through a series of heating and remassing. Silver oxide has many uses from batteries to military purposes. In a silver-zinc battery‚ silver oxide acts as the cathode and zinc as the anode. This battery is
Premium Oxygen Hydrogen Zinc
China. Enormous quantities of opium made their way to China‚ swelled by the number of merchants involved. By the 1820s‚ the value of opium coming into China exceeded the value of goods exported out. Thus‚ the Chinese had to pay silver in addition to their goods to get opium. Silver shortages began to hurt peasants. To stop the trade‚ the Qing emperor sent a special commissioner‚ Lin Zexu‚ who froze all legitimate trade in Canton until foreign merchants handed over their opium stores. The opium traders
Premium First Opium War Qing Dynasty China