Lab 2 – Water Quality and Contamination Experiment 1: Effects of Groundwater Contamination Table 1: Water Observations (Smell‚ Color‚ Etc.) Beaker Observations 1 The water is clear with no distinct smell. 2 The vegetable oil does not mix with the water. Oil on top‚ separated from the water. Oil has a slight yellow look to it. No odor. 3 Vinegar mixes with the water and retains clarity. Has a slight smell of vinegar to it. 4 Laundry detergent changes the water’s clarity to a blue-green color. It has
Premium Water pollution Drinking water Water quality
1.2 Exercise 2 - solutions Using molarities and concentrations 1. Calculate the number of moles of H2SO4 in 50 cm3 of a 0.50 moldm-3 solution. 2. Calculate the number of moles of FeSO4 in 25 cm3 of a 0.2 moldm-3 solution. 3. Calculate the mass of KMnO4 in 25 cm3 of a 0.02 moldm-3 solution. 4. Calculate the mass of Pb(NO3)2 in 30 cm3 of a 0.1 moldm-3 solution. 5. What is the molarity of 1.06g of H2SO4 in 250 cm3 of solution? 6. What is the molarity of 15.0 g of CuSO4.5H2O in 250 cm3 of solution
Premium Sodium chloride Chlorine Sodium hydroxide
Information Engineering EXERCISES Faium University Computers & Information Faculty EXERCISES 1 • Create an activity diagram and a set of use case descriptions for the process of buying glasses from the viewpoint of the patient. • The first step is to see an eye doctor who will give you a prescription. Once you have a prescription‚ you go to a glasses store‚ where you select your frames and place the order for your glasses. Once the glasses have been made‚ you return to the store for a fitting
Premium Optometry Visual perception Eye
REPORT Activity 2: Twitch Contractions and Summation Name: Trisha Mora Instructor: Professor Vais Date: 7/15/14 PREDICTIONS Effect of Muscle Fiber Length on Contraction 1. As muscle fiber length increases: Contraction Force Increases. Effect of Stimulation Frequency on Contraction 2. As the frequency of stimulation increases‚ the force of contraction: Increases. MATERIALS AND METHODS Measurement of Threshold Stimulus 1. Dependent Variable is the contraction force 2. Independent Variable
Free Muscle contraction Muscle Muscular system
Maintaining Focus in Despair Class: GS2745 Date: 09/23/13 Unit#: 1 Lab#:1 I can recall a time where I had to maintain focus and persistence in spite of obstacles that I was facing at the time. This is in fact‚ in recent history as I was going through a combination of events that seems to have come out of nowhere. I am a full time student‚ and set to graduate in two quarters. Around the end of Spring quarter and beginning of the Summer Quarter‚ I lost my job. In addition to that‚ I was
Premium Super Bowl Emotion Prince
1. The sampling frequency of the following analog signal‚ s(t)=4 sin 150πt+2 cos 50πt should be‚ a) greater than 75Hz b) greater than 150Hz c) less than 150Hz d) greater than 50Hz 2. Which of the following signal is the example for deterministic signal? a) Step b) Ramp c) Exponential d) All of the above 3. For energy signals a) The energy will be finite and power will be infinite b) The energy will be finite and power will be zero c) The energy will be zero and power will be infinite d) Both energy
Premium Standard deviation Normal distribution Statistics
Unit 1 Labs Lab 1.1: Reading Binary Exercise 1.1.1 – 2931 103 102 101 100 1000/ 100/ 10/ 0 2000+900+30+1 = 293110 Exercise 1.1.2 – 1102 22 21 20 1102 = 610 Exercise 1.1.3 – 112 = 310 Exercise 1.1.4 – 100102 = 1810 Exercise 1.1.5 – 111000102 = 22610 Exercise 1.1.6 – 15610 = 100111002 Exercise 1.1.7 – 25510 = 111111112 Exercise 1.1.8 – 20010 = 110010002 Exercise 1.1.9 – 2^7 2^6 2^5 2^4 2^3 2^2 2^1 2^0 128 64 32 16 8 4 2 0 binary 0 0 0 0 1 0 0 1 0 0 0 0 8 0 0 0 decimal 8 Exercise 1.1.10
Premium Decimal
work together‚” explains Robert Angel‚ a professor of astrology at the University of Arizona (Giant Mirrors to Capture the Universe). Just as we learned in our lab‚ we need a good source of light for something to become clear. The mirrors that are used for the telescope cause the light to be reflected off of one mirror onto the other which then create a clear image from the large convex lens. “Because these light rays are parallel to each other‚ the reflector telescope’s mirror has a parabolic shape
Premium Lens Optics Mirror
Hypothesis: The local car dealership that offers in house financing has a large percentage of accounts that are past due because of the lenient credit profile they utilize to approve financing. A hypothesis is a statement that variables are assigned to the case. (Cooper & Schindler‚ 2011) In the above hypothesis the case is accounts past due and the variable is the lenient credit profiles that are utilized for approving finance. My hypothesis has adequacy for its purpose‚ is testable. I believe
Premium Finance Scientific method Stock market
Kevina Smith Lab 1: Microscopy and the Metric System Part A: Microscopy Purpose The purpose of this experiment was to learn how to use a microscope correctly and perform wet mount slides accurately‚ thus becoming more familiar with the microscope. Hypothesis It would be hard to use the microscope without any kind of previous training and the parts of the microscope and their functions must be learned in order to use it properly. Materials & Methods Materials: 1. Filter paper
Premium Metric system