- Depending on the specifications for the experiment the Erlenmeyer flask may be dry or not
- Water is added only if the recipe need water
The Erlenmeyer flask is typically dry enough for the transfer since the small remnants of water will not significantly affect the reaction between KHP and NaOH. Additionally, any remaining water will not be present in large enough quantities to cause a significant difference in the calculated concentration of the NaOH solution.
Drying the Erlenmeyer flask before starting the experiment helps to remove any residual moisture or impurities that could contaminate the experiment or affect the final results. This step ensures that the experiment is conducted under controlled and consistent conditions. Additionally, drying the flask helps to accurately measure and add the correct amount of reagents.
Pewter corrodes when it is placed in a humid environment that allows a film to develop over the metal. Under the film, the pewter will begin to corrode. My suggestion would be to rinse the flask with cold water, and allow it to dry completely before resealing the lid. If you live in an environment where you have humid, hot summers, I might even place the flask in the refrigerator as it drys. Try using some sort of rack that allows the flask to stay upside down, ensuring that all water can escape (gravity) and air can freely circulate (keeps humidity low). Never add anything other than alcohol, like a mixed drink or mixer, as these liquids are harder to clean and dry, and can allow films to develop if the flask if full for long period of time. Hope this helps!
It doesn't! The dry ice boils, while the water gets cold. It just LOOKS like the water is boiling. If you capture and analyze some of the gas that comes off, you will see that it's carbon dioxide (dry ice), not water vapor.
Dry water can be created by mixing water with a special powder that forms a dry, powdery substance when combined. This powder absorbs the water molecules, creating a dry and powdery form of water.
?
The Erlenmeyer flask is typically dry enough for the transfer since the small remnants of water will not significantly affect the reaction between KHP and NaOH. Additionally, any remaining water will not be present in large enough quantities to cause a significant difference in the calculated concentration of the NaOH solution.
Drying the Erlenmeyer flask before starting the experiment helps to remove any residual moisture or impurities that could contaminate the experiment or affect the final results. This step ensures that the experiment is conducted under controlled and consistent conditions. Additionally, drying the flask helps to accurately measure and add the correct amount of reagents.
Using a wet Erlenmeyer flask instead of a dry one when transferring your acid solution from the volumetric pipette could lead to inaccurate results. The residual water in the flask would dilute the acid solution, resulting in a lower concentration than intended. This dilution could affect subsequent calculations, analyses, or reactions, ultimately compromising the accuracy and reliability of your experiment.
Using a wet Erlenmeyer flask when transferring an acid solution from a volumetric pipette could lead to inaccurate results due to dilution. The residual water in the flask would mix with the acid solution, resulting in a lower concentration of the acid than intended. This could affect any subsequent measurements or reactions that depend on the precise concentration of the acid, leading to erroneous conclusions. Therefore, it's crucial to ensure the flask is dry to maintain the integrity of the solution.
Acid washing it should do. I assume you are in a lab...in which case a 1:1 Hydrochloric Acid solution can be poured into the flask. DON'T FORGET TO PUT GOGGLES AND GLOVES ON. Put the lid on. Shake the flask and turn it to ensure all surfaces of the glass inside are being washed with the acid. Then, give it a good triple rinse with de-ionized water. If you are just at home, pour in some white vinegar and let it sit for a while. That should break up anything that's inside.
To wash a flask properly, first rinse it with warm water. Then, use a bottle brush and mild soap to scrub the inside. Rinse thoroughly with clean water and let it air dry upside down. Avoid using harsh chemicals or abrasive materials that could damage the flask.
It will slip out of your hands, fall to the floor, break, and cause the principal to evacuate your whole school until the fire department comes to neutralize the spill. Keep your flasks dry, please.
To clean a flask effectively, first rinse it with warm water. Then, fill it with a mixture of warm water and dish soap, and shake it well. Use a bottle brush to scrub the inside, and rinse thoroughly. For tough stains, use a mixture of baking soda and water or white vinegar. Let it sit for a few hours before rinsing again. Finally, air dry the flask upside down.
yes
Keeping the neck of a volumetric flask dry ensures that any liquid adhering to the neck does not affect the accuracy of the volume measurement. This prevents contamination and evaporation of the liquid, ensuring that the correct volume is measured each time the flask is used.
The dry ice is melted and the carbon dioxide is released as a gas.