When 100 ML Each of 2

question 14

Multiple Choice

When 100 mL each of 2.0 × 10^-5 M Ca²⁺(aq) and 2.0 × 10^-3 M CO₃^2-(aq) are mixed,what is the remaining Ca²⁺(aq) ion concentration and is precipitation complete? The solubility product constant of CaCO₃(s) is 2.8 × 10^-9.

• A)2.8 × 10^-6 M,no
• B)1.0 × 10^-3 M,no
• C)6.9 × 10^-5 M,no
• D)2.8 × 10^-3 M,no
• E)2.8 × 10^-6 M,yes

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