iodine& grams iodine
Gram's iodine is a solution of 2% iodine and 3% potassium iodide in 70% ethanol. Gram's iodine is also used as a forensic toxicology reagent for the detection of alkaloids, as a source of iodine for iodometric titrations, as an indicator for the presence of starch, and as a general laboratory source of iodine/iodide. This solution is laboratory grade, and not for medicinal use.
Iodine is non metallic,dark gray,lustrous,solid element
Iodine number is a measure of the relative unsaturation of a substance, typically a fat or oil. It indicates the amount of iodine in grams that can be absorbed by 100 grams of the substance, with higher numbers indicating a higher degree of unsaturation. This value is useful in determining the quality and stability of fats and oils for various industrial and nutritional applications.
For this you need the atomic (molecular) mass of I2. Take the number of grams and divide it by the atomic mass. Multiply by one mole for units to cancel. I2=253.8 grams12.7 grams I2 / (253.8 grams) = .0500 moles I2
To find the mass of iodine containing the same number of atoms as 25.0 grams of chlorine, we can first calculate the number of moles of chlorine using its molar mass (Cl: 35.45 g/mol). Next, using the mole ratio of chlorine to iodine (1:1), we can determine the number of moles of iodine. Finally, we can convert the moles of iodine to grams using the molar mass of iodine (I: 126.90 g/mol) to find the mass of iodine.
gram-Equivalent of iodine is 127 because its molecular weight is 2(127) and 2 electron change involve in the redox titration
Lugol's Iodine = 20g Potassium Iodide + 10g Iodine dissolved in 1L H2O Gram's Iodine = 6.7g potassium iodide + 3.3g Iodine dissolved in 1L H2O Recipe's taken from Flinn Scientific Catalog I have on campus. Looks to me as Gram's is just a dilute version of Lugol's. Same ratio of KI:I just less of it. Couldn't tell you much about differences in application however.
To calculate the grams of iodine dissolved in water for 0.02 N iodine, you need the molar mass of iodine, which is approximately 254 g/mol. With this information, you can use the formula: Grams = Normality (N) * Equivalent weight. Therefore, for 0.02 N iodine: Grams = 0.02 * 254 = 5.08 grams of iodine.
For every 1 gram of zinc, 3.88 grams of iodine are required to react. So in this case, with 4.2 grams of zinc, the amount of iodine needed would be (4.2 grams zinc) * (3.88 grams iodine / 1 gram zinc) = 16.296 grams of iodine.
222,6 grams of iodine is equivalent to 1,754 moles.
Iodine has a molar mass of 129.9g So one mol of Iodine is 129.9g. Therefore 10 moles of iodine would be 1299g.
Iodine number is a measure of the relative unsaturation of a substance, typically a fat or oil. It indicates the amount of iodine in grams that can be absorbed by 100 grams of the substance, with higher numbers indicating a higher degree of unsaturation. This value is useful in determining the quality and stability of fats and oils for various industrial and nutritional applications.
It is the grams of iodine in a 0.1moldm^-3 solution of iodine
Lugol's iodine is a mixture of elemental iodine and potassium iodide, commonly used as a disinfectant and as a supplement to support thyroid function. Gram's iodine, on the other hand, is a stain used in microbiology to differentiate between gram-positive and gram-negative bacteria based on their cell wall composition. The main difference lies in their applications and compositions.
Iron. It is there in grams. Iodine is there in milligrams.
Iodine is used to bind the Crystal Violet to the Gram Positive microbes.
380.7 grams of iodineis equivalent to 3 moles.
For this you need the atomic (molecular) mass of I2. Take the number of grams and divide it by the atomic mass. Multiply by one mole for units to cancel. I2=253.8 grams12.7 grams I2 / (253.8 grams) = .0500 moles I2
Did you mean "What turns iodine into tincture of iodine?USP (U.S. National Formulary) Tincture of Iodine is defined as containing in each 100 mL, 1.8 to 2.2 grams of iodine, and 2.1 to 2.6 grams of sodium iodide. Alcohol is 50 ml and the balance is purified Water.