Is this first answer correct? How do I do question 2??

From the measured mass of Cu(NO), 2.5H.0 (see Laboratory Procedure step 2a). calculate the concentration (in M) of the copper stock solution. Show your calculated work (3 points) Bonto.am I mde 2 3.19424C 232.59 moles = 1.37x10 "Go = 0.46 M 0.03 mL solition From the concentration of the copper stock (see Post-Lab Exercise item I) and the volumes of stock that were diluted to prepare the copper standards (see Procedure step 2d), calculate the concentration (in M) of each standard. Show your calculated work (a sample calculation is sufficient). (Review Pre-Lab Exercise item 1 for guidance.) (3 points) Standards (0.464) 1.0mL 1.5mL (2.0ML 12.5 mL 3.0L 5.0ML Using a plotting software program (e.g., Microsoft Excel or Google Sheets), construct a calibration curve of the standards data. (Review Pre-Lab Exercise item 2.) 3)