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What else can I help you with?
What is another name for a test tube?
another name for test tube is culture tube or sample tube
How high is 2 mL of water in a test tube?
It depends on what size test tube you are using.
What is contained in a clean dry test tube?
If a test tube is clean and dry, then there should be nothing in it.
How could you test if argon is a non metal?
You first get a bowl of tap water, get a test tube with the argon in it. Take out the cork screw out of the test tube. Get a splint put it over the test tube when you open it and it it pops that means it is a metal
Is test tube baby immoral?
It is subjective as to whether a test tube baby is immoral or not. Some religions feel that it is.
Did anything happen to the surface of the pyrex test tube in this flame?
Pyrex is resistant to thermal shock and can withstand high temperatures, so the surface of the Pyrex test tube likely did not change in the flame. It should remain unaffected under normal laboratory conditions.
Did anything happend to the surface of the pyrex test tube in this flame?
In a flame, the surface of a Pyrex test tube may become sooty or blackened due to carbon build-up. This is typically a result of incomplete combustion of the gas or other material being burned. Pyrex glass itself is resistant to high temperatures and is unlikely to melt or deform in a regular flame.
If a sample contained 1 gram of pure substance A and another test tube contained 4 grams of pure substance A how would the melting point differ and how would the experiment differ?
The melting point is independent of the quantity. What changes is the amount of heat which must be supplied.
How do you test for the melting point?
🧪 Capillary Tube Method (Melting Point Apparatus Method) — Common in Labs Materials: Dry powdered sample Capillary tube (sealed at one end) Melting point apparatus or oil bath Thermometer or digital display Steps: Prepare the sample: Crush the solid if necessary into a fine powder for uniform heating. Fill the capillary tube: Tap some of the powder into the open end of the capillary tube until it's about 2–3 mm high. Insert the tube into the apparatus: Place the capillary tube in the melting point apparatus. If using an oil bath, secure the tube next to a thermometer for temperature reading. Heat gradually: Slowly increase the temperature (around 1–2 °C per minute as you approach the expected melting point). Observe carefully: Start of melting: Note the temperature when the solid just begins to liquefy. End of melting: Note the temperature when the substance is completely melted. The melting point is typically reported as a range (e.g., 120–122 °C). 🔬 Digital Melting Point Devices (Modern Labs) These devices automatically detect the melting point using built-in cameras and sensors. More accurate and user-friendly but more expensive. 📝 Important Notes A pure compound melts over a narrow range (1–2 °C). An impure compound will melt over a broader and lower range. Always repeat the test to confirm accuracy.See more..
What will happen if you heat few grains of clean sand in a test tube?
Try it and you'll find out !
Why seal capillary tube before taking melting point of exo-norborneol?
Sealing the capillary tube before taking the melting point of exo-norborneol is essential to prevent contamination and ensure accurate results. A sealed tube minimizes the risk of solvent evaporation, which could alter the melting point by changing the concentration of the sample. Additionally, sealing helps maintain a consistent environment, reducing the influence of air or moisture that could interfere with the melting process.
What steps can you take to determine the melting point of a substance that sublimes before it melts?
In such cases the melting point determination must be performed in a sealed capillary tube to avoid loss of sample. This can be achieved by heating the open end of the capillary tube, and with tweezers forcing it shut.
Why is it essential to pack the sample tightly in the melting point tube?
Packing the sample tightly in the melting point tube is essential to ensure consistent and efficient heat transfer during the melting point determination process. A tightly packed sample minimizes air gaps that can lead to uneven heating and inaccurate melting point readings. Additionally, a well-packed sample allows for better thermal conductivity, helping to achieve a more precise measurement of the melting point. Overall, proper packing enhances the reliability of the results obtained.
What is a thiele tube is used to?
A Thiele tube is a simple device used in chemistry for measuring the melting or boiling points of substances. It consists of a capillary tube attached to a thermometer and is immersed in the substance being tested. Changes in temperature are observed to determine the melting or boiling point accurately.
Why can't we reuse a capillary tube to determine the melting point for a second time?
ur muff cabbage
Why do you use a new capillary tube for melting point determination each time?
It is not easy to be cleaned inside.
Never point the test tube towards your partner?
You can cause damage to them!
