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The most common way to generate hydrogen gas in the school lab in my experience is to combine zinc (in a form called mossy zinc that has a very large surface area) with hydrochloric acid.
If you intend to collect the gas for use later, you use a method called collecting gas over water.
What else can I help you with?
What is the chemical equation for the laboratory preparation of ammonia?
The chemical equation for the laboratory preparation of ammonia is: N2(g) + 3H2(g) → 2NH3(g)
Why is methane used for Bunsen burners?
Methane is used for Bunsen burners because it burns cleanly with a blue flame, providing a consistent and controllable source of heat for laboratory experiments. It also produces less soot and smoke compared to other fuels, making it ideal for use in a controlled environment like a laboratory.
What is the preparation of hydrogen?
The preparation of hydrogen gas is usually from a reduction of a compound containing hydrogen that is in the +1 oxidation state. This reduction is accomplished either electrically or chemically.
How is ammonia gas collected in the laboratory preparation of ammonia gas?
Ammonia gas is collected by upward displacement of air in the laboratory preparation. This involves passing the gas over water and collecting it by downward displacement because ammonia is lighter than air. The gas is then bubbled through water to dissolve any remaining gas before use.
Which is not a preanalytical variable that can affect the accuracy and precision of laboratory test results?
The type of laboratory equipment used is not typically considered a preanalytical variable that can affect the accuracy and precision of laboratory test results. The main preanalytical variables include patient preparation, specimen handling, and time delays.
How do you prepare methanal from ethanal?
Monohalogenation of methane, followed by Wurtz reaction.
What is the chemical equation for the laboratory preparation of ammonia?
The chemical equation for the laboratory preparation of ammonia is: N2(g) + 3H2(g) → 2NH3(g)
How do you prepare methane in a laboratory?
What do you think methane is if it isn't a chemical? The easiest way to get methane in a laboratory is to open the natural gas tap, since natural gas is mainly methane.
What gases are most commonly used as the fuels for laboratory burners?
propane and methane
What are the laboratory preparation of carbon dioxide?
In the laboratory, carbon dioxide is usually prepared by the action of dilute hydrochloric acid on marble chips.
What is the chemical composition of fuel use in the laboratory?
It depends on the lab, but usually it's either natural gas (mostly methane) or propane.
What are the types of laboratory room?
lecture room, store room, preparation room
Why is preparation important when carrying out scientific investigation in the lab and in the fields?
Good preparation helps you stay safe when doing science activities in the laboratory.
Why is preparation important when carry out scientific investigations in the lab and in the field?
Good preparation helps you stay safe when doing science activities in the laboratory.
Why is preparation important when carrying out scientific investigations in the lab and in the field?
Good preparation helps you stay safe when doing science activities in the laboratory.
Name two uses of distilled water?
- preparation of samples in analytical chemistry- all works in a chemical or biological laboratory- motor vehicles- preparation of drugs
What alterations does Aylmer perform on his laboratory in preparation for Georgiana's seclusion in the birthmark?
Hires aminadab
