Question

The nonvolatile, nonelectrolyte cholesterol ,  C₂₇H₄₆O (386.6 g/mol), is soluble in diethyl ether CH₃CH₂OCH₂CH₃.  

How many grams of cholesterol are needed to generate an osmotic pressure of 3.76 atm when dissolved in 214 ml of a diethyl ether solution at 298 K.

___?___grams cholesterol

Answer 1

Answer wes Given Gas constant CR) = 0.0821 w.alm mollk! Osmotic Pressure CP) = 3.76 atm Temperature (T)= 298 K Yolume (V) – 214 ml = 0.214 L Molar mass of C24H4BO (M) – 386,6 g/mol weight of C24 H4 60 cw) = ? g. w xRxT M According to Ideal gas equ PV = w XRXI w = Px V xM RXT w 3.76 Catów) x 0.214645 x 386.6 Coot) 0.0821 Chat NOTIK) 298 CK) w=12.7 g an :, 12.719 of cholestool are needed to generala Osmotie pressure 043.76 atin