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طيب كذا

25mL of a 0.2450 M NH4Cl solution is added to 55.5 mL-
of 0.1655 M FeCl3. What is the concentration of chloride ion in the final solution? 
A. 0.607 M
B. 0.418 M
C. 1.35 M
D. 0.190 M
E. 0.276 M