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Mario places 10 mL of water in a test tube and heats the liquid over a Bunsen burner for 2 minutes. After removing the test tube from the Bunsen burner there are 6 mL of water left in the test tube. T?
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Why when heating most organic volatile liquid's is it a good idea to use steam and not a Bunsen burner?
If you use Bunsen burner, you might burn the volatile liquid. Also, because it is organic, the fire would likely spread to you because it would burn too fast for you to react.
Why do you heat flammable liquid such as methanol with an electric heater rather than a Bunsen burner?
Two main reasons - one is that the bunsen burner flame is actually quite small in relation to the dimensions of the bottom of the beaker. If you take something that has a small surface area in relation to the size of the flame (for example a glass rod) that can be made to soften in a bunsen burner flame much more easily. The second reason is that the beaker or flask will generally contain something that you are trying to heat up or boil. So heat energy from the flame will initially transfer through the glass into that substance and be "used up" in bringing this liquid up to its boiling point,
What lab equiment is used for heating small amount of substance?
Depending on what is being heated. If its a liquid that isn't combustable (ie. water) its safe just to heat it using a bunsun burner. However if its something lik ethanol that will combust your better using a water bath. If your wanting a set temperature for a solution to be heated at then use an electronic water bath. If you want to get realy fancy use a heated cermic surface. This have like a magnetic stirrer with it as well and you set the temperature.
What are 4 facts about the Bunsen Burner?
The Bunsen burner is such a familiar fixture of chemistry labs that its reputation reaches students even before they enter the classroom. As an icon of science, it permeates popular culture. But where did the Bunsen burner come from? Who invented it? You might hope to chuckle at the absurdly obvious: "why, Bunsen, of course!" But a brief foray into history may be warranted before placing too significant a wager on the "obvious."Robert Bunsen, whose name we associate with the burner, was a 19th-century German chemist of some renown. He worked on explosive organic arsenic compounds--leading to the loss of one eye--and, later, on gases from volcanoes, geysers and blast furnaces. With Kirchoff he contributed to our understanding of the meaning of spectra lines. (He also gained note for not bathing--one woman of polite society remarked that Bunsen was so charming that she would like to kiss him, but she would have to wash him first.) Bunsen invented many bits of laboratory apparatus: the spectroscope, the carbon-pole battery, an ice calorimeter and vapor calorimeter, the thermopile, and the filter pump--but not, as one might imagine, the gas burner that bears his name. Rather, the "Bunsen" burner was developed by Bunsen's laboratory assistant, Peter Desdega. Desdega himself likely borrowed from earlier designs by Aimé Argand and Michael Faraday. So why does Bunsen get the implicit credit? --And why do we know so little about Desdega that we cannot add much to his story?"Bunsen's" burner illustrates an important dimension of science frequently omitted in teaching about science: professional credit. Eponymous laws and labels--whose names reflect their discoverers--appear throughout science: Snell's law of refraction, Gay-Lussac's law of gases, the Hardy-Weinberg model of population genetics, the volt (named for Alexander Volta), etc. The naming of laws for their discoverers seems appropriate for honoring the scientists--and the human names are handy for reminding students that science is done by real persons. But in this system, one person and only one person gets all the credit. Focusing on great individuals can hide the collective nature of science, especially the role of technicians such as Desdega. How do we distribute the credit where appropriate?The great Isaac Newton is frequently quoted for expressing the humbling effect of the collective effort in science: "If I have seen further," he once professed, "it is by standing on the shoulders of giants." Newton's claim, we now know, betrayed a false modesty. Newton's bitter priority dispute with Leibniz over the invention of the calculus, in particular, bears witness to his ambition and obsession with prestige--and his political maneuvers in trying to achieve it. In that case, at least, Newton tried to further his own stature "by standing on the claims of competitors." In similar ways, perhaps, the contributions of technical workers often get buried when we allow theoretical discoveries of the work of their masters to overshadow them. Bunsen's burner--or perhaps the Desdega burner--is a notable example.The story of the Petri dish is an interesting exception--while at the same time underscoring the general pattern of invisible technicians. Julius Richard Petri (1852-1921) worked for the master of "germ theory" in Germany in the late 1800s, Robert Koch (1843-1910; pronounced as a gutteral "coke"). Initially, bacteria were cultured in liquid broth--a practice captured in our famous images of experiments on spontaneous generation. But Koch saw the advantage of growing bacteria on a solid medium instead. By spreading out mixtures of microorganisms on a solid surface, he could separate individual types in isolated colonies. With pure colonies, he could investigate the effects of each bacterium. The method allowed Koch to identify the specific organisms that cause tuberculosis, cholera, diptheria, among many other diseases--and then to develop vaccines.
What is the meaning of decantatition?
Decantation usually refers to pouring liquid. It can be just pouring liquid from one container to another, or removing the liquid from a solid sediment by pouring the liquid off and leaving the solid behind.
What is used for heating small amounts of liquid in a science lab?
Yes they are used for heating small amounts of liquids!
What would you use to heat small amount of liquid?
A Bunsen Burner
Why can you not use a Bunsen burner to heat a flammable liquid?
It is too volatile to heat up with a bunsen burner as it could overheat because you can not regulate the heat that the bunsen burner is set to, whereas with apparatus such as a thermostatic water bath you can set it to a specific temperature.
Is it safe to heat a flammable liquid sample in a beaker over a bunsen burner?
The flammable liquid will catch fire. That can be dangerous. Answer "no".
What heats a large amount of liquid science equipment?
I depends on what you class as late but maybe a Bunsen Burner
Why when heating most organic volatile liquid's is it a good idea to use steam and not a Bunsen burner?
If you use Bunsen burner, you might burn the volatile liquid. Also, because it is organic, the fire would likely spread to you because it would burn too fast for you to react.
Is direct heating using Bunsen burner flame advisble when evaporating the soduim cholride solution?
As long as the solution is a water-based solution, it should be fine. You should never ever use a Bunsen burner to heat a flammable liquid such as alcohol, ether, acetone, etc.
What is a lab burner?
A laboratory burner, enables glassware (safe to be heated) containing chemicals or any liquid or solid to come to a boil or a certain temperature.
How do you know if a liquid is water if you are using a Bunsen burner?
One way to determine if the liquid is water is to consider the temperature at which the liquid boils. Water has a boiling point of 100 degrees Celsius or 212 degrees Fahrenheit.
How do you heat a liquid to 90 degrees?
if your in a lab, put water in a beaker, place the beaker on a tripod and heat with Bunsen burner, (use thermometer to measure
What is used in science for heating?
Bunsen Burner Bunsen burners are typically used to heat beakers of liquid in order to induce chemical reactions. Bunsen burners also pose disadvantages: They cannot control the temperature as accurately as electronic heaters and using an open flame can be dangerous.
What is used to heat small amounts of liquid?
At home I'd use the microwave and a cup. In the lab I'd use a boiling tube and a bunsen burner. It also depends on what you mean by small. I'd be thinking of 5 to 10 mls. You might be thinking of 2 litres rather than 50 litres. (In which case I'd use a kettle.)
