help guys i need the corect answer

1. Calculate cell potential for a concentration cell with two cupper electrodes with concentrations 0.2M and 3.0M separated by a salt bridge. Show the cell line notation. 2. Calculate the concentration of the unknown, given the equation below and a cell potential of 0.26V. Ag(s)Ag(aq,xM)Ag(aq,0.2M)Ag(s) 3. You have two NiSO4 solutions which have different concentrations, 3M and 0.5M. use these solutions to make a galvanic concentration cell. a) Write the cell notation, the redox half reactions, and determine the standard cell potential b) Use the Nernst equation to determine the actual cell potential at 20.0C c) Draw the cell and label the diagram with the following: a. direction of species flow: b. the electrons in the wire: c. the ions in the salt bridge (sat. KNO3 ): d. source and sink of electrons: e. positive and negative terminals