양이온과 음이온의 농도. 0.20 M SrSO4

0.15 M Cr2(SO4)3

0.12 M SrI2

각 화합물은 완전 해리한다고 가정.

Determine the concentrations of the cation and anion in each aqueous solution.

Assume complete dissociation of each compound.

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[참고] 이온결합 화합물 화학식 쓰기

a) 0.20 M SrSO4

SrSO4(aq) → Sr^2+(aq) + SO4^2-(aq)

[Sr^2+] = [SO4^2-] = 0.20 M

b) 0.15 M Cr2(SO4)3

Cr2(SO4)3(aq) → 2Cr^3+(aq) + 3SO4^2-(aq)

[Cr^3+] = 2 × 0.15 M

[SO4^2-] = 3 × 0.15 M

c) 0.12 M SrI2

SrI2(aq) → Sr^2+(aq) + 2I^-(aq)

[Sr^2+] = 0.12 M

[I^-] = 2 × 0.12 M

[키워드] 0.20 M SrSO4 0.15 M Cr2(SO4)3 0.12 M SrI2