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17 Feb 2024
A mixture is prepared that is 5.0% (w/w) of an unknown substance mixed with naphthalene (molar mass = 128.2 g mol^-1). The freezing
point of this mixture is found to be 77.3 °C. What is the molar mass of the unknown substance? (The melting point of naphthalene is 80.2 °C and Kf = 6.9 °C m^-1.)
The molar mass of the unknown substance =
A mixture is prepared that is 5.0% (w/w) of an unknown substance mixed with naphthalene (molar mass = 128.2 g mol^-1). The freezing
point of this mixture is found to be 77.3 °C. What is the molar mass of the unknown substance? (The melting point of naphthalene is 80.2 °C and Kf = 6.9 °C m^-1.)
The molar mass of the unknown substance =
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