Spectroscopy Lab

This light is known as the spectrum emission color of an element which can also be used to identify an element as well as determine the energy that is given off. In this lab we used this information to identify three unknown substances and determine if the energy given off was high or low. In order to conduct this lab we had to take a known substance for example Copper Chloride (CuCl) and use a splint to put the substance over a bunsen burner. We then recorded the frequency, color of the flame, and the spectrum emission line by using spectroscopes, which diffracts light.

Spectroscopy is the study of light. A spectrophotometer is a machine used to determine the absorbance of light at any given wavelength. It does this by using a source of white light through a prism, which gives multiple wavelengths that can be individually focused (Ayyagari and Nigam, 2007). Substances are put into cuvettes that are glass or quartz containers that light can easily travel through. The light that is being focused travels through the substance gets absorbed by the

Spectrometer – A spectrometer is a device which takes in light and then breaks down light into the various components of the electromagnetic spectrum.

5. Zoom Out by clicking on the green arrow next to the Save button. Click on the Stockroom and then on the Clipboard and select Balloon Experiment N2. Again, set the temperature, pressure, and moles to 298 K, 1.00 atm, and 0.300 moles, respectively. You may have to click on the Units button to change some of the variables to the correct units. Repeat the experiment with this gas labeling the data link ‘Real Gas N2.’

The purpose of this lab was to carry out a systematic series of experiments to determine which chemicals and at what ratio produce chemiluminescence, and then to manipulate reaction conditions to extend glow time or brightness.   The variables for day one were chemicals used, amount of chemical, order of addition, and stirring the substance or not. The main variables in day two were heating or cooling chemicals, order of addition, and stirring. The best trial for day 1 was trial 13, which was 2 drops of H2O2, 2 drops DMSO, 2 drops HCl, 2 drops NaOH, and 2 drops Bleach, in that order, added to 10 drops luminol, and then stirred.

6-3: This process is used by cells to manufacture _biochemical energy from nutrients into adenosine triphosphate (ATP), and then release waste products__

We can determine an object’s temperature from its thermal (or “blackbody”) spectrum by finding the wavelength at which it emits the most electromagnetic radiation.

1. Place a small amount of wax from a birthday candle into a test tube. Heat gently over a burner flame until the wax melts completely; then allow

a) Tap and drag over the area of the graph where the resting heart rate is displayed to select the data.

Introduction Oximetry calculates the oxygen level (saturation) of the hemoglobin in your red blood cells. Red blood cells carry oxygen. This measurement is taken with a sensor. The sensor is connected by a cable to either a device called an oximeter or a monitor with multiple displays. The measurement helps to assess:

To do so, we used the cuvette 0, also known as the blank, and the cuvette 5, the pure substance. We calibrated our spectrophotometer by setting the λ (wavelength) to 383 nm and then placing the blank in. Afterwards, we set the transmittance to 100%. Then, we removed the blank cuvette and placed the cuvette 5 in. After recording the %T and absorbance, we repeated the process but with a different wavelength. We repeated with wavelengths ranging from 383 to 700, recording the %T and absorbance each time.

It is easy to flip to the index of an astronomy textbook to discover that, say, the Sun lies 150 million kilometers away from Earth. It is far more difficult (if not impossible), however, to picture this distance in our mind. In this exercise, we will learn to access the often unpalatable distances encountered in astronomy by simply scaling the huge distances to more recognizable, familiar numbers. So long as every distance within the system of interest is scaled by the same

Dehydration and moderate fever are the casual enormities a person faces throughout his/her life. Similarly, in my teenage years, I also overcame such a condition and carelessly disregarded it as another week of some light nausea and fever. However, the stomach sickness and continuant abdominal cramps left me thinking upon other possibilities. But my undying habit or love for unhealthy and processed foods made me overlook my stomach pains. I rather intentionally disregarded the fact in face of fear and remained content with several pain killers.

Light is a form of energy that behaves in some ways like waves. Light waves have a range of wavelengths. A wavelength is the distance between any point on one wave and the corresponding point on the next wave. Different wavelengths of light appear to us as different colors. Light that contains all wavelengths in the same proportions as sunlight appears white. See LIGHT.

With today’s science, light becomes more specifically perceived as a spectrum. The specific name for this spectrum is the electromagnetic spectrum, which contains many types of waves (NASA, Electromagnetic Spectrum). In Figure 2, the spectrum shows a variety of wavelengths with specific wavelengths classified by its length. The range of wavelengths humans can see wavelengths that are around 400 – 700 nanometers (nm) as colors while all other electromagnetic waves are simply blind to humans. The interesting classes for light that are used to measure are microwave and infrared light. The laser is