The lab started off by measuring critical materials for the lab: the mass of an an empty 100 mL beaker, mass of beaker and copper chloride together(52.30 g), and the mass of three iron nails(2.73 g). The goal of this experiment is to determine the number of moles of copper and iron that would be produced in the reaction of iron and copper(II) chloride, the ratio of moles of iron to moles of copper, and the percent yield of copper produced. 2.00 grams of copper(II) chloride was added in the beaker to mix with 15 mL of distilled water. Then, three dry nails are placed in the copper(II) chloride solution for approximately 25 minutes. The three nails have to be scraped clean by sandpaper to make the surface of the nail shiny; if the nails are not clean, then some unknown substances might accidentally mix into the reaction and cause variations of the result.
Radiation- the emission of energy as electromagnetic waves or as moving subatomic particles, especially high-energy particles that cause ionization. 13. Sunlight is a form of radiation that is radiated through space to our planet without the aid of fluids. 14. The sun transfers heat through radiation of space.
The wavelength (λ) and frequency (ν) of light are related through the equation: Using the following emission spectra: Calculate the frequency for the each of 8 emission lines: λ = c *v solve for frequency(v) v = λ/c a. Violet (450 nm) v = (3x108 m/s) /
The presence of macromolecules is able to be detected in solutions such as glucose, sucrose, starch, and proteins as well as other common foods. These other common foods include oats, soda, gelatin, and apple juice. There are four classes of macromolecules such as monosaccharides, disaccharides, polysaccharides and proteins. Each of these can be found using different tests such as the Benedict’s test, the Iodine test, or the Biuret test. Although there is no specific test for disaccharides it can be determined if the original color has not changed.
Doriana Spurrell What different frequencies and types of light would prompt the Spinach leaves to go through the process of photosynthesis effectively? Purpose: The purpose of this experiment was to see which of the four lights that range across the light spectrum would properly and most efficiently help the spinach leaf perform photosynthesis. Background Information: Photosynthesis is the process in which plants use light energy to transform into chemical energy.
The purpose of this experiment is to observe the characteristics colors produced by certain metal ions when vaporizing in a flame, and then identifying an unknown metal ions by using flame test. Electromagnetic radiation is energy that travels a wave, including microwave infrared radiation radio waves x-ray, radio waves,x-ray,gamma radiation, cosmic rays and visible light .there are two types of wavelength short wavelength such as x-ray, radiation and cosmic rays and long wavelength such as infrared radiation, microwaves and radio waves. long wavelength have low frequencies and low energy while short wavelength have high frequency and high energy. visible lights: a small portion near the center of electromagnetic spectrum wavelengths in range
Practice Final Exam Name___________________________________ MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1) What is the longest wavelength in the Lyman Series? A) 91.20 nm B) 365 nm C) 45.60
The colors that were brightly emitted in the spectroscope were the colors violet, blue, yellow, and green. Then, the spectroscope readings from part one were taken and plugged into the equation to get wavelengths of: violet-436, blue-485, green-534, and yellow-583. Compared to the actual accepted wavelengths, the percent errors were relatively high: violet-6.34%, blue-11.98%, green-10.08%, and yellow-11.13%. These wavelengths were used to calculate the energy emitted and the thus the initial energy levels could be determined. When a photon is absorbed by a hydrogen atom, the energy from the photon causes the electron to move from one energy level to another, whereas if a photon is emitted, the electron transitions from a high energy level to a low one.
Everyone tries to escape reality in their own way. Some choose to read books. Others choose to listen to music. Escape can be different for everyone, but we can live through experiences that are not our own. In Hanif Abdurraqib’s essay “Under Half-Lit Fluorescents: The Wonder Years and the Great Suburban Narrative” he discusses the world we live in and the escape people seek everyday.
These samples were then compared to the spectra of the unknown sample, or Figure A. The sample spectra are all included in the Figure A. The IR spectra of the unknown sample. This can also be referred to as Spectra H. appendix section of this lab report and
Glow This tool adds glow auras on the picture. The effect finds the brightest are on the image and adds it bright halos. So it turns out that the brightest area shines. This effect is used to mitigate the general form of picture as well as to give it a "romantic" view or create a fog effect.
From the spectroscope, we could the see different clearer clusters of spectra from various sources of light and elements. These instruments allow you to look at forms of visible light. Describe an experience that told you there were other forms of radiation that affect us which we are not able to observe directly. From the infrared selfie, we could see other forms
They are similar in that they only express certain wavelengths of color, and that color must be within the visible spectrum. ● How would you use the idea of quantization of energy to explain the nature of these spectra? When energy in quantized, there are specific lines that occur at specific energy levels as electrons move up and down specific quanta. Energy is not continuous, like a slope, but rather more
Index 1. Introduction Spectroscopy is a term which refers to the interactions of various types of electromagnetic radiation with matter. It is also a study of the absorption and emission of light and other radiation by matter. Dependence of this process related to the wavelength of the radiation. Spectrometers are used to measure the properties of light over a specific portion of the electromagnetic spectrum.
The resultant spectrum is usually a graph of intensity of emitted or absorbed radiation versus wavelength or frequency. The spectra used in spectroscopy varies from ultra-violet, visible, infra red ranges. The wavelength range for the three spectra are 0-400, 400-700 and above. In short, spectroscopy use to gain insight into the structure of molecules or the concentration of atoms or molecules in a sample. The chemists use infrared radiation to determine the structure of a new molecule, geologists uses ultraviolet radiation to determine the concentration of particular element in rock or
