The freezing point of an aqueous solution of KCN containing 0.175molkg−1Kf was −0.7oCH2O=2kgmol−1K. On adding 0.095 mol of M(CN)2, the freezing point of the solution was –0.570C. Take the cryoscopic constant for water to be equal to 2 with the usual units. If the complex formation takes place according to the equation, M(CN)2+mKCN⇌Km[M(CN)m+2] what is the value of m (integral value) in the formula of the complex?

The freezing point of an aqueous solution of KCN containing 0.175molk

1.	The freezing point of an aqueous solution of KCN containing 0.175molkg−1Kf was −0.7oCH2O=2kgmol−1K. On adding 0.095 mol of M(CN)2, the freezing point of the solution was –0.570C. Take the cryoscopic constant for water to be equal to 2 with the usual units. If the complex formation takes place according to the equation, M(CN)2+mKCN⇌Km[M(CN)m+2] what is the value of m (integral value) in the formula of the complex?
Answer» The freezing point of an aqueous solution of KCN containing 0.175molkg−1Kf was −0.7oCH2O=2kgmol−1K. On adding 0.095 mol of M(CN)2, the freezing point of the solution was –0.570C. Take the cryoscopic constant for water to be equal to 2 with the usual units. If the complex formation takes place according to the equation, M(CN)2+mKCN⇌Km[M(CN)m+2] what is the value of m (integral value) in the formula of the complex?