4. A weighing of 0.5248 g of epoxy resin was dissolved in acetone and 50.00 ml of 0.1 M HCl solution was added. For titration of excess acid, 18.45 ml of NaOH with a titer of 0.004060 g/ml were used. Calculate the mass fraction (%) of epoxy groups in the resin. Epoxy groups=41.
If you do not open the file - install the RAR archiver. Inside the archive you will find a solution in Word format.
No feedback yet