Chee Kwok Wei's answer to Brittany's Junior College 2 H3 Maths question.

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Chee Kwok Wei
Chee Kwok Wei's answer
2 answers (Tutor Details)
1st
Assuming the volume is constant. Since CoCl3 and Co3+ have the same ratio, molar concentration of Co3+ will be the same a molar concentration of CoCl3.
Ratio of Cl-:CoCl3 is 3:1, molar concentration of Cl- is 3 times of the molar concentration of CoCl3