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What is the concentration of concentrated sulphuric acid?
Sulfuric acid is used because it combines with water to produce electrolytes. Inside a car battery, these electrolytes cover the battery plates,and henceforth is utilized to power the engine turnover on startup.
What is the role of concentrated H2SO4 in Hopkins-cole test?
Concentrated H2SO4 is used in the Hopkins-Cole test to dehydrate the carbohydrates present in the sample, converting them into furfural derivatives. These derivatives then react with aniline to produce a colored product, allowing for the detection of the presence of pentoses and hexoses in the sample.
How does a liquid chromatograph mass spectrometer work to separate and analyze compounds in a sample?
A liquid chromatograph mass spectrometer separates compounds in a sample by passing the sample through a column that separates the compounds based on their chemical properties. The separated compounds are then ionized and passed into a mass spectrometer, which measures the mass-to-charge ratio of the ions to identify and quantify the compounds present in the sample.
Why sodium extract is boiled with concentrated nitric acid before testing halogens?
Boiling the sodium extract with concentrated nitric acid helps to oxidize any halides present to their respective halogens. This reaction helps to release the halogens from the sample so they can be detected more easily in subsequent tests.
Why is sulphuric acid used in molisch test?
sulphuric acid acts as a dehydrating agent.all carbohydrates are dehydrated to give dehydration products. For example, pentoses give furfural as dehydration product where as hexoses give 5-hydroxy furfural.. these are attacked by 1-napthol to give a purple coloured condensation product...
What is the concentration of concentrated sulphuric acid?
Sulfuric acid is used because it combines with water to produce electrolytes. Inside a car battery, these electrolytes cover the battery plates,and henceforth is utilized to power the engine turnover on startup.
How do you obtain a concentrated sample of the ink to run a chromatogram?
Go to alaska
What is the principle of microscope?
There are two types of the electron microscope. First is called transmission electron microscope. It uses electrons passed through the sample to build a picture of the sample internal structure. Second type is scattered ("reflected" from the sample surface) electrons to build up a picture of the sample surface.
How do you make a concentrated a solution from a dilute sample?
It has more volosity in the sir than what it's holding.
What is immunoturbidimetry?
Immunoturbidimetry measure the turbidity of a sample to determine the level of an analyte. Upon addition of the assay reagent, antibodies and antigen cluster to form an immune complex that precipitates, increasing the turbidity of the sample. When light is passed through the reaction solution, some light is scattered by the sample, some light is absorbed by the sample and the rest passes through the sample. Immunoturbidimetry measures the absorbance of the light by the sample The level of analyte is determined by comparison with a calibrator of known concentration. sreejoyee
When sample X is passed through a filter paper a white residue Y remains on the paper and a clear liquid z passes through. When liquid Z is vaporized another white residue remains. Sample X is B?
Sample X is likely a solution containing a soluble substance (B) and an insoluble substance (Y). When passed through the filter paper, the insoluble substance Y is caught while the soluble substance dissolves in liquid Z, which passes through. Upon vaporizing liquid Z, the soluble substance B remains as a white residue. Thus, sample X is a mixture of an insoluble solid (Y) and a soluble compound (B).
What is best time of day for proper urine sample?
The best time of day for a proper urine sample is first thing in the morning. This is because the urine is more concentrated then.
What is the role of concentrated H2SO4 in Hopkins-cole test?
Concentrated H2SO4 is used in the Hopkins-Cole test to dehydrate the carbohydrates present in the sample, converting them into furfural derivatives. These derivatives then react with aniline to produce a colored product, allowing for the detection of the presence of pentoses and hexoses in the sample.
How does a liquid chromatograph mass spectrometer work to separate and analyze compounds in a sample?
A liquid chromatograph mass spectrometer separates compounds in a sample by passing the sample through a column that separates the compounds based on their chemical properties. The separated compounds are then ionized and passed into a mass spectrometer, which measures the mass-to-charge ratio of the ions to identify and quantify the compounds present in the sample.
Can a lab read a diluted sample?
no i have personally done this every time i have taken a test and passed. but you can get in trouble for having a diluted sample.
What part Of the spectrophotometer is responsible for detecting the amount of light absorbed?
The detector in a spectrophotometer is responsible for detecting the amount of light absorbed. It measures the intensity of the light after it has passed through the sample in the spectrophotometer. The detector converts this information into an electrical signal that can be used to determine the absorbance of the sample.
How do spectrometers work to analyze the composition of substances?
Spectrometers work by measuring the interaction between light and a substance. When light is passed through a sample, the substance absorbs certain wavelengths of light based on its composition. By analyzing the absorbed wavelengths, spectrometers can determine the elements or molecules present in the sample.
