First calculate molar mass of Morphine
C17H19NO3 = ( 17 12.01 ) + ( 19 1.0079 ) + 14.0067 + ( 3 16.00) = 285.33 g/mol
We know that, Molarity = No. of moles of solute / Volume of solution in L
No. of moles of solute = Molarity Volume of solution in L
No. of moles of C17H19NO3 = ( 2.50 10 -02 mol / L ) 0.0500 L = 0.00125 mol
We have, No. of moles = Mass / Molar mass
Mass = No. of moles Molar mass
Mass of C17H19NO3 = 0.00125 mol ( 285.33 g/mol ) = 0.3566 g = 0.357 g
Procedure : Weigh out accurately 0.357 g of Morphine. Transfer it carefully into 250 ml beaker. Dissolve in 20 ml of distilled water. Transfer carefully solution from beaker into 50.0 ml volumetric flask . Add distilled water up to the mark. Resultant solution will be 2.50 10 -02 mol / L morphine solution.
1. Calculate and describe how to prepare a 50.0 mL of 2.50x102 M solution of Morphine (C17H19NO3) write the procedu...
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