A 180 L Water Sample Is Thought to Contain Cadmium Ions

question 59

Multiple Choice

A 1.80 L water sample is thought to contain cadmium ions.If 26.00 g cadmium phosphate (527.2 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

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