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How Does 'Nahco 3' Affect The Concentration Of The Tarnish?

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If at this moment, the jewelry boxes and countless other silver objects of individuals were looked at, each person would have at least one (or up to 25%) item with surface tarnish, making them black and unappealing. Most of these items are valuable family heirlooms or pieces of jewelry that hold special memories for an individual. These beautiful pieces full of history are discarded in the back of jewelry boxes because they are tarnished, flawed, and harmful. Personally, jewelry was given as a gift commemorating special events, and as time passes, these beautiful time pieces have become dark due to tarnish and are harmful to wear. They can cause skin discoloration and irritation. Cleaning the tarnish off jewelry is something that must occur …show more content…
Independent Variable: The concentration of aqueous 〖"NaHCO" 〗_"3 " Levels of Independent Variable: 0.10 M 〖"NaHCO" 〗_"3 " , 0.50 M 〖"NaHCO" 〗_"3 " , 1.0 M 〖"NaHCO" 〗_("3" ) , 1.5 M 〖"NaHCO" 〗_"3 " , and 2.0 M 〖"NaHCO" 〗_("3" ) Dependent Variable: The average rate of the redox reaction Controlled Variables: Temperature of the solution to maintain reaction rate Hypothesis: If different concentrations of aqueous 〖"NaHCO" 〗_"3 " are tested, then a 2.0 M concentration of 〖"NaHCO" 〗_"3 " will reduce the tarnish on sterling silver the …show more content…
It is expected that increasing the concentration of 〖"NaHCO" 〗_"3 " will increase the rate of reaction; however, there is a level of uncertainty involved since the only role that 〖"NaHCO" 〗_"3 " plays in the reaction is to remove the layer of hydroxide covering the silver (I) sulfide. It is important to investigate this questionable action because individuals need to be informed of the results of chemical reactions that could allow them to clean their silver more efficiently, making it more feasible to prevent skin irritation due to silver (I)

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