0
What else can I help you with?
Why you have to hold the neck of the standard flask while preparing standars not at the bottom?
When preparing standards in a standard flask, it's important to hold the neck rather than the bottom to ensure accuracy and prevent contamination. Holding the neck allows for better control and minimizes the risk of introducing impurities from your hands. Additionally, it helps maintain a stable temperature and prevents accidental spills that could occur if the flask is gripped too low. This practice contributes to precise measurements and reliable results in analytical procedures.
What is the main cause of heat loss in a normal thermos flask?
The main heat loss in a good thermos flask, is due to heat conducted through the material. (Glass or Stainless Steel). There should be little heat lost through the vacuum of the flask.
Do and don't's while using Volumetric Flask?
When using a volumetric flask, always make sure to fill it to the calibration line for accurate measurements, and use a pipette to add reagents for precision. Avoid shaking the flask vigorously, as this can cause bubbles that may lead to incorrect volume readings. Do clean the flask thoroughly before use to prevent contamination, and do not use it for mixing solutions unless the volume is stable.
What instrument is used for heating?
Many instruments are used in the laboratory for heating purposes. Many are specialized for specific types of settings and reactions. Here are some of the more commonly used ones: * The hot plate- an electronic device that often is combined with a stirring function so that reactions can be heated and stirred at the same time. Hot plates come in many different sizes and shapes depending on the kind of work you are doing. * The Bunsen burner- a device that has an open flame obtained from lighting a flammable gas that is fed through the burner. These are becoming less popular in labs as safer and more stable electronic equipment is introduced. One of their main uses is sterilization of items (often glass or metal) since they have higher temperatures than most hot plates and they reach those temperatures faster. * Heating mantles- work in much the same way as hot plates but instead of just heating the bottom of a flask they heat a large majority of the surface area for an even temperature throughout the flask. Some of these even contain ways to control the temperature automatically. These devices are also reduce the risk of shattered glass due to it's ability to prevent rapid changes in temperature or uneven temperature distribution. * Water baths- use the same concept as heating mantles. These consist of a container of water usually positioned over a hotplate with the flask to be heated partway submerged in the water. These are very useful and cheap ways for heating reactions evenly but you have to control the temperature manually. These also introduce a lot of humidity to the area and there is always the risk of losing (and most likely ruining) your product in the water by tipping over the flask. * Incubators- Are used to control temperature and humidity in order to promote the growth of microorganisms for use in study like certain kinds of bacteria. These can be set to automatically change temperatures and also to turn off at certain times. * Oven-a device in the lab that can be set to many different temperatures and that is used primarily to heat glassware and other items in order to dry them. It can also be used on chemical samples to evaporate water or other residues with low boiling points. * Autoclave- A device that uses steam and pressure to heat aqueous solutions in order to sterilize them for use.
How do you become a part of Hollywood undeads undead army?
I Pledge allegiance to the mask, That I'll carry whiskey in my flask, And anyone to hate HU, I'll leave a bloody mess with you, For we are family, you and I, 3 Tears for you, we all shall cry, All day all night, our flags will fly, The Undead Army Till The Day We Die.
What is another word for triangular flask?
Another word for a triangular flask is a conical flask.
What is flat bottom flask?
A flat bottom flask would be an Ehrlemeyer flask, which is used quite a lot by chemists.anf
What is the triangular cup called in chemistry?
conical flask
What is the round bottom flask use for in chemistry?
The round bottom flask is used frequently for distillation.
Why is conical flask called conical flask?
The conical flask is named after its shape, which resembles a cone. It typically has a flat bottom, a conical shape, and a narrow neck. This design allows for easy swirling of liquids and helps in preventing splashing while mixing or reacting substances.
What instrument do you use to find liters?
A measuring flask.
How much does a 100mL round bottom flask weigh?
The weight of a 100mL round bottom flask can vary depending on the material it is made of. A typical 100mL glass round bottom flask weighs approximately 100-150 grams.
What is the instrument used in science to hold things such as liquids?
flask
What science tool is Glassware with a narrow opening on top?
Conical flask, round bottom flask..
Why pear shaped flask is used instead of round bottom flask?
even distribution of heat
What uses does a Erlenmeyer flask have?
An Erlenmeyer flask, commonly known as a conical flask or E-flask, is a widely used type of laboratory flask which features a flat base, a conical body, and a cylindrical neck. The flask is named after the German chemist Emil Erlenmeyer, who created it in 1861. Because the bottom is flat it can stand by itself as opposed to spherical bottom flasks which are also common.The flat bottom makes it easy to put on a stirring device which rotates a magnet in the flask.
What is the history of the erlenmeyer flask?
The Erlenmeyer flask is named after the German chemist, Emil Erlenmeyer, who developed the instrument in 1861.
