0
As we know PPM=mg/Kg, if d=1 so PPM=mg/L
At first we must calculate the densty of ethanol in kg, so when we use 0.5L of ethanol it means :
0.789 kg/L = x kg/0.5L : x=0.394 Kg
For a 100 ppm solution of iodine in 0.5 L of ethanol we have 100=mg I2 /0.394 kg
so mg I2 = 39 mg
S.Pourmand
M.Sc. Organic chemistry
What else can I help you with?
Is iodine and ethanol homogeneous or heterogeneous?
A mixture of iodine and ethanol is considered heterogeneous because iodine does not dissolve in ethanol and will remain visibly separate as a solid in the liquid ethanol.
What method is used to obtain iodine from a solution of iodine in ethanol?
filtration
What is a solute and solvent in tincture of iodine?
Tincture of iodine contains iodine and alcohol
What will the result of ethanol plus iodine be?
When ethanol reacts with iodine, it forms a yellow-brown solution due to the formation of iodoethane and hydrogen iodide. The reaction is a substitution reaction where iodine replaces a hydrogen atom in ethanol.
Is tincture of iodine a solution?
Yes, it is elemental iodine dissolved in ethanol.
Is iodine and water heterogeneous mixture?
Iodine is much more soluble in ethanol than in water, so it will usually form a homogeneous mixture. Of course, if you add more solid iodine than will dissolve in your quantity of ethanol at the temperature at which you are working, the excess solid will sink to the bottom. In that case, you have a heterogeneous mixture.
Why is iodine and ethanol mixture homogeneous and how can it be separarted?
An iodine and ethanol mixture is homogeneous because iodine dissolves well in ethanol, forming a single-phase solution where the iodine molecules are evenly distributed throughout the ethanol. To separate the mixture, one can use methods such as evaporation, where heating the solution would cause the ethanol to evaporate, leaving behind the iodine. Alternatively, fractional distillation can be employed to separate the two components based on their differing boiling points.
Is tincture of iodine a solid?
A tincture is a solution; in this case the solvent is ethanol or water.
A leaf was taken from a plant boiled with ethanol and tested with iodine solution what is it tested for?
The iodine test is commonly used to detect the presence of starch in a sample. If the leaf turns blue-black when treated with iodine solution after boiling with ethanol, it indicates the presence of starch in the leaf tissue.
What is the difference between Iodine bought in a pharmacy and the Iodine stain solution?
The iodine stain solution you're referring to might be Lugol's iodine. This is iodine and potassium iodide in water. The product available in a pharmacy is tincture of iodine which is iodine and potassium iodide in ethanol and water. Please see the links.
How can I make iodine solution at home?
To make iodine solution at home, mix 1 gram of iodine crystals with 10 milliliters of alcohol (such as ethanol or rubbing alcohol). Stir the mixture until the iodine crystals dissolve completely. This solution can be used as an antiseptic or for other purposes.
How do prepare 1 iodine solution?
To prepare a 1% iodine solution, you can mix 1 gram of iodine crystals in 100 ml of distilled water or ethanol. Stir the mixture until the crystals are fully dissolved. This solution can be used for various purposes, such as laboratory experiments or disinfection.
