0
What else can I help you with?
Why is is not necessary to dry an Erlenmeyer flask before transferring the solid KHP to Na-OH?
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.
Why do you have to dry the Erlenmeyer flask at the start of the experiment?
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.
How can you keep the inside of your pewter flask from rusting or corroding from the inside out?
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!
Why does water with dry ice in it boil?
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.
How can one create dry water?
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.
Why the Erlenmeyer flask does not have to be dry and why water may be added after the 25.00-centimetre Cube of Acid has been pipetted in?
?
Why is is not necessary to dry an Erlenmeyer flask before transferring the solid KHP to Na-OH?
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.
Why do you have to dry the Erlenmeyer flask at the start of the experiment?
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.
How do clean a beaker?
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.
How to wash a flask properly?
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.
What will happen if a wet Erlenmeyer flask is used to transfer acid solution from the volumetric pipette?
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.
Is it necessary to dry clean the conical flask before use?
yes
How to clean a flask effectively?
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.
What happened to the dry ice when hot water was added?
The dry ice is melted and the carbon dioxide is released as a gas.
What happens to the water temperature and water state as dry ice is added?
The temperature decrease and water can be transformed in ice.
Why should the neck of a volumetric flask be kept dry?
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.
When water vapor is added to the air the density of the air is?
When water vapor is added to the air, the density of the air decreases. This is because water vapor molecules are less dense than dry air molecules.
