Please help me to calculate the amount needed for lab procedure. Thank you Twelv
ID: 481182 • Letter: P
Question
Please help me to calculate the amount needed for lab procedure. Thank you Twelve grams of granulated tin (0.101 mol) and 40 g. of iodine (0.157 mol) are placed in a dry Kjeldahl flask. Seventy-five milliliters of carbon tetrachloride is added, and a reflux condenser is attached. The flask and its contents are heated gently until the reaction begins, after which heat- ing is no longer necessary. When the solution ceases to boil, the flask is heated until all the iodine has disappeared. This is readily determined by the change in color of the liquid from violet to orange-red and by the absence of colored vapors in the flask and of colored liquid dripping from the reflux condenser. The condenser is removed, and the solu- tion in the flask is heated to vigorous boiling. The hot solution is filtered quickly, using a steam-jacketed funnel, to remove unreacted tin. The residue on the filter is washed with 10 ml. of boiling carbon tetrachloride. The filtrate and washings are cooled in an ice bath, and the crystallized product is removed by filtration. The solution remaining is evaporated and cooled to give a second crop of crystals. The combined yield is about 44 g. (90%). The product may be recrystallized from carbon tetrachloride.Explanation / Answer
Amount of chemicals needed:
Granulated tin - 12gm
Iodine - 40 gm
Carbon tetrachloride (CCl4)- 75 ml initially and 10 ml boiling for washing purpose.
That is all you will need for performing the experiment. Please follow the method given above so as to get the final product.