10.00 mL of 0.100 M (NH4)2SO4 is combined with several other solutions (none of which contain SO4-2) to produce a final solution with a volume of 60.00 mL.

Question

Calculate the concentration (in moles per litre) of SO4-2 in the final solution.

Answer 1

So the 0.1M has been diluted to 60 mL.
0.1 x 10/60 = ?
OR
mL1 x M1 = mL2 x M2 is the dilution formula.
10 x 0.1 = 60 x ?M