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What does an industrial chemist do?
INDUSTRIAL CHEMIST Industrial Chemists study and apply the physical and chemical properties of substances to determine their composition. They use this information to develop new substances, processes and products and to increase scientific knowledge. Industrial Chemists may perform the following tasks: * Conduct experiments to identify chemical composition and study chemical changes which occur in natural substances and processed materials * Undertake research and analysis to develop and test theories, techniques and processes * Take part in the marketing and research of process or product development.
Scientists determine the composition and temperature of stars?
To determine the chemical composition of stars, scientists look at what's called the emission spectrum of the stars, which can be obtained from the light coming from the stars. Thin lines are observed in different parts of the spectrum, which correspond to different chemicals. In other words, the lines are like fingerprints of chemicals. By looking at these fingerprints, one can determine what type of chemicals are present in the star. To determine the surface temperature of stars, we use the Wien's Law. It states that: Peak wavelength x Surface Temperature = 2.898x10-3 Peak wavelength can be determined by looking at the light coming from the star in question. It is the wavelength with the highest intensity.
What are two was in which mixtures differ from compounds?
A compound comprises the same proportion of its components, a mixture can be made up of varying amounts.A compound may have physical and chemical properties which are quite different to those of any of its components. A mixture retains many of the physical and chemical properties of its main ingredient.
Who is j proust?
Joseph Louis Proust was a chemist who was born in Angers, France in 1754. He is famous for showing that when a chemical reaction takes place, matter is not created, but it isn't destroyed either. This is referred to as the law of constant composition.
What is the formula for chemical energy?
Energy has no chemical formula as it is not a chemical.
How do astronomers determine the chemical compositions of stars?
The answer is long and complicated, and it is too long to place here. You need to read an entire encyclopedia articles on spectroscopy and the chemical composition of intersteller objects. D.A.W.
What instrument do the astronomers use to determine the chemical composition of the star?
MY ANSWER IS....SPECTROSCOPE....because stars can seen through spectroscope...:)) sorry kung ganito lang kasimple yung answer ko...im just a grade 6 pupil lang kasi.. nice to meet you all... -Dulce Dumapias...add me on facebook..ahaha:)) see you there..:))
The set of spectral lines that we see in star's spectrum depends on the stars?
composition and temperature. The spectral lines correspond to different elements present in the star and the wavelengths of these lines are affected by the star's temperature. By analyzing these lines, astronomers can determine the chemical composition and other characteristics of the star.
How do astronomers determine the composition of distant celestial objects?
Spectroscopy is the systematic study of spectra and spectral lines. Spectral lines are used to provide evidence about the chemical composition of distant objects. So the answer to your question is through spectroscopy.. not spectrometry like the previous editor posted.
If Astronomers observe a typical star using a telescope and a spectrometer they will be able to determine what?
Astronomers can determine the star's temperature, chemical composition, mass, luminosity, and age by analyzing its spectrum. By studying the absorption and emission lines in the spectrum, astronomers can also infer the star's motion, magnetic fields, and if it has any companions such as planets or other stars.
What does the spectrum of a star determine?
The spectrum of a star provides information about its temperature, composition, and motion. By analyzing the spectrum, astronomers can determine the star's chemical makeup, age, and even whether it is moving toward or away from Earth.
How would you determine the chemical composition of magnetite?
Fe2O3
How did astronomers in the 19th century gather information about the chemical composition of stellar objects?
There is one way for gathering information about chemical composition of stellar objects - spectral analysis! Astronomical spectroscopy began with Isaac Newton's initial observations of the light of the Sun, dispersed by a prism. He saw a rainbow of colour, and may have seen absorption lines. The absorption lines in stellar spectra can be used to determine the chemical composition of the star.
How does a spectrograph provide information about stars chemical composition?
A spectrograph breaks down the light from stars into its component colors or wavelengths. Each chemical element absorbs and emits light at specific wavelengths, creating a unique fingerprint called a spectral line. By analyzing the spectral lines in a star's light, scientists can determine its chemical composition.
What are the factors that determine the thermal energy of a substance?
Its mass and and its chemical composition.
Spectrographs help astronomers determine a star's what?
The star's chemical composition; the star's rotation; pulsations of the star; planets or other invisible objects moving around the star; how quickly the star is moving towards us or away from us.
How can one determine the chemical formula from percent composition?
To determine the chemical formula from percent composition, you need to convert the percent composition of each element into moles. Then, divide the moles of each element by the smallest number of moles to find the ratio of elements. Finally, use this ratio to write the chemical formula.
