To dilute it to a certain concentration given in moles. It is best to transfer it to a beaker first to make sure it dissolves. The 250ml figure is dependent on how much of the solution that you need
You can neutralize phosphoric acid by adding a base, such as sodium hydroxide or potassium hydroxide, until the solution reaches a neutral pH of around 7. This will form water and a salt, effectively neutralizing the acid.
A volumetric flask is a piece of laboratory glassware used in analytical chemistry for the preparation of solutions. It is made of glass or plastic and consists of a flat bottomed bulb with a long neck, usually fitted with a stopper. The stopper is normally made in a chemically resistant plastic such as polypropylene rather than glass. The neck has a single ring graduation mark and a label. The label should show the nominal volume, tolerance, calibration temperature, class, relevant manufacturing standard and the manufacturer’s logo. The glass or plastic is generally clear but may be amber colored for handling light sensitive compounds such as silver nitrate or vitamin A.
To prepare 1 liter of a 1.25M ammonium hydroxide solution, you would need to dissolve 42.14 g of ammonium hydroxide (NH4OH) in enough water to make a total volume of 1 liter. Measure out the correct mass of ammonium hydroxide, add it to a volumetric flask, and then add water while stirring until the final volume reaches 1 liter. Make sure to wear appropriate safety gear and handle ammonium hydroxide with caution due to its caustic properties.
When potassium permaganate is mixed with ethanedioc acid the potassium permanganate Mn04- ion will be converted toMn2+, this means that you will observe the purple colour changing to a clear solution and the permanganate ion is oxidised. The Mn2+ will act as an auto catalyst speeding up the reaction, therefore a funny rate will occur, where the reaction is slow to start, before speeding up and slowing down again at the end. I read about this in chemistry review, so you can check it out there...http://www.york.ac.uk/depts/chem/chemrev/autocat.doc.
An unsaturated solution contains less solute than a saturated solution and is able to dissolve additional solute until it reaches the point of saturation.
To prepare a 0.1 M solution of calcium sulfate (CaSO₄), first calculate the required amount of CaSO₄. For 1 liter of solution, you need 0.1 moles, which is approximately 14.16 grams of anhydrous calcium sulfate (CaSO₄). Dissolve this amount in a small volume of distilled water, then transfer the solution to a 1-liter volumetric flask and add distilled water until the total volume reaches 1 liter. Stir well to ensure complete dissolution.
To prepare a 250 ml saturated solution of sodium thiosulphate, start by adding sodium thiosulphate (Na2S2O3·5H2O) to a clean container, gradually mixing it with distilled water until no more solid dissolves and the solution reaches saturation. Typically, this requires adding approximately 80 grams of sodium thiosulphate to the water. Stir the mixture thoroughly and allow it to settle for any undissolved solids to settle at the bottom. Finally, transfer the clear solution to a volumetric flask and make up the volume to 250 ml with distilled water.
Volumetric flask, also known as measuring flask or graduated flask, is a kind of glassware which is used for accurate dilutions and preparation of standard solutions. Volumetric flasks are usually pear-shaped with a graduation mark on the neck. The mark indicates the volume when the solution reaches there. Volumetric flasks are various in size, but they come in standard size, 10.00 ml, 25.00 ml, 50.00 ml, 100.0 ml, 250.0 ml, 500.0 ml, etc.
Burettes are used in chemistry laboratories to accurately measure and dispense volumes of liquid. They are commonly used in titration experiments to slowly add a solution to another solution until a chemical reaction reaches completion.
You can neutralize phosphoric acid by adding a base, such as sodium hydroxide or potassium hydroxide, until the solution reaches a neutral pH of around 7. This will form water and a salt, effectively neutralizing the acid.
k1-
Distilled water at 110°C is in a liquid state. As water reaches its boiling point at 100°C, it will be boiling and transitioning into vapor at 110°C.
7
tae mo.....................................................................................................................................................................................................................................................................................................................................................................................................................
A strong electrolyte dissociates completely into ions in aqueous solution. When potassium nitrite, a strong electrolyte, is put into water the cations and anions are surrounded by water molecules and the solid dissolves.KNO2(s) K+(aq) + NO2-(aq)We represent this state by the symbol "(aq)" to indicate that the ions are in aqueous solution.
A volumetric flask is a piece of laboratory glassware used in analytical chemistry for the preparation of solutions. It is made of glass or plastic and consists of a flat bottomed bulb with a long neck, usually fitted with a stopper. The stopper is normally made in a chemically resistant plastic such as polypropylene rather than glass. The neck has a single ring graduation mark and a label. The label should show the nominal volume, tolerance, calibration temperature, class, relevant manufacturing standard and the manufacturer’s logo. The glass or plastic is generally clear but may be amber colored for handling light sensitive compounds such as silver nitrate or vitamin A.
To prepare 1 liter of a 1.25M ammonium hydroxide solution, you would need to dissolve 42.14 g of ammonium hydroxide (NH4OH) in enough water to make a total volume of 1 liter. Measure out the correct mass of ammonium hydroxide, add it to a volumetric flask, and then add water while stirring until the final volume reaches 1 liter. Make sure to wear appropriate safety gear and handle ammonium hydroxide with caution due to its caustic properties.