what concentration of Br- results when 831 mL of 0.747 M HBr is mixed with 611 mL of 0.561 M FeBr2

Answer 1

mols Br^- from HBr = M x L = ?
mols Br^- from FeBr2 = M x L x 2 = ?
M Br^- in solution = (total mols/total L)

Answer 2

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