How many grams of salt do I need to dissolve into 345 mL of water to get a concentration of 0.55? Show your work pls

Which statement about the stamps is correct?

According to the diagram; a) identify the anode of the cell and write the half-reaction that occurs there b) write the overall equation for the reaction that occurs as the cell operates c) calculate the value of the standard cell potential ,e cell. d)write the shorthand notation of the cell above e)indicate the flow of the electrons on the diagram

Identify two types of chemical bonding in the source of dietary potassium