If you dissolve 0.135g of copper in nitric acid and dilute it to 100.0 mL with water, calculate the concentration of Cu^2+ in the resulting solution.Please help me with this question
Look up the atomic weight of copper in the periodic table. You can assume this the same as the molar mass of copper and use it for the next step. The electrons are negligible, so you can ignore the mass difference between the ion and elemental Copper. Divide the mass of copper by the atomic weight to get the number of moles of copper. Divide the number of moles by the volume of water in liters (100mL = 100 x 10^-3 L) to get your concentration in moles per liter There it is, step by step.
