Calculate the maximum concentration (in M) of calcium ions (Ca2+) in a solution that
contains of CO3
2-. The Ksp of CaCO3 is (2 points)
A) 5.8 × 10-5
B) 6.8 × 10-9
C) 3.4 × 10-9
D) 6.2 × 10-8
E) 1.9 × 10-10

The concentration of any substance is the presence or the amount of that substance in a specific place. It is also called the molar mass of the substance.

Ksp is the solubility equilibrium of a substance when it remains in its solid state.

The chemical equation will be

CaCO₃ ⇌Ca²⁺+CO₃²⁻

Ksp = [Ca²⁺][CO₃²⁻]

given Ksp = 3.4 × 10⁻⁹ [CO₃²⁻] = 0.055M

[Ca²⁺] = Ksp / [CO₃²⁻] 3.4×10⁻⁹ / 0.055 = 6.18 × 10⁻⁸

Thus, the Ksp of CaCO₃ = 6.18 × 10⁻⁸. The correct option is D).

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Calculate the maximum concentration (in M) of calcium ions (Ca2+) in a solution that contains of CO3 2-. The Ksp of CaCO3 is (2 points) A) 5.8 × 10-5 B) 6.8 × 10-9 C) 3.4 × 10-9 D) 6.2 × 10-8 E) 1.9 × 10-10

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What is concentration?

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Calculate the maximum concentration (in M) of calcium ions (Ca2+) in a solution that
contains of CO3
2-. The Ksp of CaCO3 is (2 points)
A) 5.8 × 10-5
B) 6.8 × 10-9
C) 3.4 × 10-9
D) 6.2 × 10-8
E) 1.9 × 10-10