211 -- The ``solubility--temperature'' equation for salt A in water is: $S = 0.97\theta + 35$, where $S = 0.97\theta + 35$. If the molar solubility ratio of salt A at temperatures $0^\circ\mathrm{C}$ and $40^\circ\mathrm{C}$ is $2.46$, the ratio of the molar concentration of the saturated solution of B to the molar concentration of the saturated solution of A at $50^\circ\mathrm{C}$ is approximately equal to --- (molar masses of A and B are respectively 330 and 110 grams; ignoring the change in volume due to the effect of dissolving salt, the ``solubility--temperature'' equation for salt B in water is linear). (1) $0.69$ (2) $1.03$ (3) $1.65$ (4) $2.51$
\textbf{211 --} The ``solubility--temperature'' equation for salt A in water is: $S = 0.97\theta + 35$, where $S = 0.97\theta + 35$. If the molar solubility ratio of salt A at temperatures $0^\circ\mathrm{C}$ and $40^\circ\mathrm{C}$ is $2.46$, the ratio of the molar concentration of the saturated solution of B to the molar concentration of the saturated solution of A at $50^\circ\mathrm{C}$ is approximately equal to --- (molar masses of A and B are respectively 330 and 110 grams; ignoring the change in volume due to the effect of dissolving salt, the ``solubility--temperature'' equation for salt B in water is linear).
(1) $0.69$ \quad (2) $1.03$ \quad (3) $1.65$ \quad (4) $2.51$
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