Question

1. Calculate the volume (in mL) of Solution #1 (5.0 mM ferrous ammonium sulfate hexahydrate) needed to make 25.0 mL of a 0.2 mM Fe2+ solution (Solution #2). Report your answer to 2 sig figs.

2. Calculate the mass (in grams) of ferrous ammonium sulfate hexahydrate (Fe(NH₄)₂(SO₄)₂ 6H₂O) needed to make 50.0 mL of a 5.0 mM stock solution (solution #1). Report your answer to 2 significant figures.

Answer 1