An alcoholic iodine solution ("tincture" of iodine) is prepared by dissolving 5.55 g of iodine crystals in enough alcohol to make a volume of 245 mL. Calculate the molarity of iodine in the solution.
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The molar mass of Iodine is 126.9
2007-04-01 13:47:53 · 4 answers · asked by Matt S 1 in Science & Mathematics ➔ Chemistry
5.55gI2/245mL x 1molI2/254gI2 x 1000mL/1L = 0.0892M
2007-04-01 13:53:11 · answer #1 · answered by steve_geo1 7 · 0⤊ 0⤋
How To Make Iodine Tincture
2016-10-17 02:57:03 · answer #2 · answered by balbuena 3 · 0⤊ 0⤋
The molar mass of Iodine is 126.9 but iodine is diatomic,I2.
5,55/(126.9x 2) = 5.55/253.8 = 0.0219 moles
0.0219 moles/0.245 liters= 0.0894 molarity
2007-04-01 14:10:21 · answer #3 · answered by Osmium 1 · 0⤊ 0⤋
wanna know how to retrieve them?
empty bottle add same amount of h2o add 2 drops h2so4(sulfric acid) add drops of bleach until it turns really dark watch dark crystals fall to th ebottom
2007-04-01 14:00:53 · answer #4 · answered by wade 3 · 0⤊ 0⤋