(Solved): how can i find mw of the salt and atomic mass  Identification of the Unknown Alkali Carbonat ...

how can i find mw of the salt and atomic mass 

Identification of the Unknown Alkali Carbonate \begin{tabular}{|l|r|r|r|r|c|} \hline Unknown Sample Letter & Mass Unknown (g) & Volume \( \mathrm{CO}_{2} \) \( (\mathrm{~mL}) \) & Moles \( \mathrm{CO}_{2} \) (mol) & MW carbonate salt \( (\mathrm{g} / \mathrm{mol}) \) & Atomic Mass of Metal \( (\mathrm{g} / \mathrm{mol}) \) \\ \hline C & \( 0.2167 \) & 41 & \( 0.00170524 \) & & \\ \hline C & \( 0.2197 \) & 46 & \( 0.00191974 \) & & \\ \hline A & \( 0.2161 \) & 13 & \( 0.00054628 \) & & \\ \hline B & \( 0.2 \) & 30 & \( 0.00124773 \) & \\ \hline B & \( 0.2081 \) & 30 & \( 0.00124349 \) & \\ \hline B & \( 0.2081 \) & 30 & \( 0.00124349 \) & \\ \hline B & \( 0.2422 \) & 57 & \( 0.00238699 \) & \\ \hline C & \( 0.22 \) & 58 & \( 0.00243724 \) & \\ \hline A & \( 0.2289 \) & 14 & \( 0.00058427 \) & \\ \hline C & \( 0.2168 \) & 46 & \( 0.00191319 \) & \\ \hline B & \( 0.2188 \) & 17 & \( 0.00070226 \) & \\ \hline B & \( 0.237 \) & 37 & \( 0.00154945 \) & \\ \hline A & \( 0.2423 \) & 36 & \( 0.00149728 \) & \\ \hline \end{tabular}