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The iodine solution stained the onion cell by binding to starch molecules present in the cell. This caused the cell to appear darker or blue-black under a microscope, allowing for better visualization of the cell's structures like the nucleus and cell walls.
Image result for You prepare a less concentrated H C l solution from a stock solution with 12m concentration. If you too 100g of the stock solution to prepare 4 MHCl solution how much water is needed to prepare o find solution 9density HCL(12) = 1,89/ml? The concentration would be 0.76 mol/L.
Acetic acid, also known as vinegar, is used in a darkroom as a stop bath solution to halt the development process of photographic prints. It helps neutralize the alkaline developer solution, preventing further development of the image on the print.
The pH of a liquid is a measure of its acidity. If a liquid has a pH of less than 7 in is acidic. If it is more than 7 it is basic. If it has a pH of 7 it is neutral. pH can be measured with chemical indicatior or with a pH meter. In the "related links" below is an image from Wikipedia that shows the pH of some common substances.
Soft tissues do not show up well on x-rays because they are not dense enough to block x-rays. However, contrast agents like barium or iodine can be used to highlight soft tissues by absorbing or scattering more x-rays, making them visible on the image.
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there will be change in the color for iodine into blue,black because of the presence of starch in it.
there will be change in the color for iodine into blue,black because of the presence of starch in it.
there will be change in the color for iodine into blue,black because of the presence of starch in it.
there will be change in the color for iodine into blue,black because of the presence of starch in it.
there will be change in the color for iodine into blue,black because of the presence of starch in it.
there will be change in the color for iodine into blue,black because of the presence of starch in it.
Iodine dyes cells a purple color. This enables things to be seen easier under a microscope.
Iodine dyes cells a purple color. This enables things to be seen easier under a microscope.
Iodine dyes cells a purple color. This enables things to be seen easier under a microscope.
Iodine is added into bacteria so that you can get a clear image when you are looking into the microscope.
The thyroid gland is often imaged using a salt of iodine-131 as this gland has a high uptake of iodine.