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The bottom of a test tube was covered with soot after an experiment which required heating. What kind of flame was used during the experiment?
A yellow, smoky flame was likely used during the experiment, which produced soot as a byproduct of incomplete combustion. This type of flame is often seen with a fuel-rich mixture or inefficient burning of the fuel.
What is the correct blended word for flame and glare which means to blaze up with bright flame?
The correct blended word for "flame" and "glare" that means to blaze up with bright flame is "flare." This term captures the essence of a bright, intense light or flame, often used to describe sudden bursts of fire or brightness.
Why do you use a roaring flame in a Bunsen burner experiment first?
A roaring flame in a Bunsen burner experiment is used initially to provide a high temperature and ensure rapid heating of the sample or substance being tested. This type of flame, which has a bright, blue color, indicates complete combustion and efficient heat transfer. It helps achieve the desired reaction or change quickly before switching to a more controlled flame for precise experiments.
Provide two examples of how the Bunsen burner is used during inoculation of a tube culture?
A loop is sterilized by inserting it into a Bunsen burner flame until it is red hot. 1) This will incinerate any contaminating organisms that may be present. 2) This will ensure that viable cells are transferred.
How did Joseph Priestly relight the candle in his experiment?
Joseph Priestley relit the candle by placing a mint leaf near the flame, which resulted in the flame rekindling due to the release of oxygen from the mint leaf during photosynthesis. This experiment demonstrated the concept of oxygen being necessary for combustion.
Why must it e flamed after making an inoculation?
We use to flame the inoculating loop after inoculation because during inoculation many bacterial cell get attached to loop which can further contaminate the inoculation of other cells so to destroy the previous sticked celled it is necessary to flame burn the loop
The bottom of a test tube was covered with soot after an experiment which required heating. What kind of flame was used during the experiment?
A yellow, smoky flame was likely used during the experiment, which produced soot as a byproduct of incomplete combustion. This type of flame is often seen with a fuel-rich mixture or inefficient burning of the fuel.
What is Bunsen Burner used for?
A Bunsen burner produces heat and creates a heat source when doing an experiment. It uses methane and there is two flames a safety flame-you can put your hand through it without burning your hand and a roaring flame-this flame is blue and it is what you use when you preform an experiment.
What is the size and length of inoculation loop?
Inoculation loops can be purchased in different sizes, either in metal for flame sterilisation or in plastic for use with pathogens which are disposed of after a single use. Typically they range from 0.25 - 0.5cm internal diameter.
Why a luminous flame is not used as a source of heat in a laboratory experiment?
A luminous flame produces soot, which can contaminate the experiment or react with chemicals being used. In addition, the temperature of a luminous flame is not as high or consistent as a non-luminous flame, making it less suitable for precise heating applications in a laboratory setting.
What is the correct blended word for flame and glare which means to blaze up with bright flame?
The correct blended word for "flame" and "glare" that means to blaze up with bright flame is "flare." This term captures the essence of a bright, intense light or flame, often used to describe sudden bursts of fire or brightness.
Why is it important to do the experiment with the blue flame first?
Doing the experiment with the blue flame first is important because it helps establish a baseline understanding of how a clean flame behaves and what to expect as a reference point. This can help in identifying anomalies or deviations when conducting experiments with other flames later on.
When would you use a blue flame in a lab situation?
when you are doing an experiment that involves "the effect of heat on a ..."
How do you perform cold flame experiment with phosphorus?
To perform the cold flame experiment with phosphorus, you need white phosphorus, a glass container, a beaker of water, and safety equipment. Submerge the glass container in water to eliminate any air. Cut a small piece of white phosphorus and ignite it inside the container. The phosphorus will burn, producing a cold, greenish-white flame due to the presence of phosphorus pentoxide. Remember to wear appropriate safety gear and perform the experiment in a well-ventilated area.
Why is it advice to work near the flame during aseptic technique?
It is advice to work near a flame during aseptic technique because it has to be performed under sterile conditions. Working near a flame allows for flame sterilization which would promote sterilization to the experiment you are working on.
The olympic flame is relite every how many years?
About every 2 years.
Why do you use a roaring flame in a Bunsen burner experiment first?
A roaring flame in a Bunsen burner experiment is used initially to provide a high temperature and ensure rapid heating of the sample or substance being tested. This type of flame, which has a bright, blue color, indicates complete combustion and efficient heat transfer. It helps achieve the desired reaction or change quickly before switching to a more controlled flame for precise experiments.
