A 180 L Water Sample Is Thought to Contain Cadmium Ions

Multiple Choice

A 1.80 L water sample is thought to contain cadmium ions.If 26.00 g cadmium phosphate (527.18 g/mol) precipitates when 77.1 mL of a 1.28 M sodium phosphate solution is added to the water sample, what is the molar concentration of Cd²⁺ in the original water sample?

A) 0.164 M
B) 0.0548 M
C) 0.148 M
D) 0.0822 M
E) 0.0493 M