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Problem- when 0.500 g of vitamin K is dissolved in 10.0 g of camphor (Kf=40.0 degrees C/m), the freezing point of the solution is 4.43 degrees C lower than that of pure camphor. Assuming vitamin K is a non electrolyte in camphor, calculate its molar mass.
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you have made up a solution of 100 mm tris ph 7.0. the pka of tris is8.0. compared to the situation at ph 7.0 about how
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