The purpose of placing a piece of Ag in 1.0M NiCl2 is to observe the reaction between silver and nickel chloride. This experiment can also be used to determine the reactivity of silver compared to nickel.
The expected result is the formation of silver chloride (AgCl) and the displacement of nickel from the solution. This reaction is known as a single replacement reaction.
The reaction between Ag and NiCl2 can occur almost instantly. However, the rate of the reaction may vary depending on factors such as temperature and concentration of the solution.
No, this experiment cannot be used to determine the concentration of nickel chloride. In order to determine the concentration, a separate procedure such as titration would need to be performed.
When conducting this experiment, it is important to wear appropriate protective gear such as gloves and safety goggles. The solution may be corrosive, so it is important to handle it with care. In case of any accidental spills, neutralize the solution with a base and follow proper disposal procedures.