Question

A stock solution containing Mn2+ ions was prepared by dissolving1.108 g of pure manganese metal in nitric acid and diluting to afinal volume of 1.000 L. The following solutions were then preparedby dilution.
For solution A, 50.00 mL of stock solution was diluted to 1000.0mL.
For solution B, 10.00 mL of solution A was diluted to 250.0mL.
For solution C, 10.00 mL of solution B was diluted to 500.0mL.
Calculate the molar concentrations of the stock solution andsolutions A, B, and C.
stock solution