Lab Report

The mole is a convenient unit for analyzing chemical reactions. Avogadro’s number is equal to the mole. The mass of a mole of any compound or element is the mass in grams that corresponds to the molecular formula, also known as the atomic mass. In this experiment, you will observe the reaction of iron nails with a solution of copper (II) chloride and determine the number of moles involved in the reaction. You will determine the number of moles of copper produced in the reaction of iron and copper (II) chloride, determine the number of moles of iron used up in the reaction of iron and copper (II) chloride, determine the ratio of moles of iron to moles of copper, and determine the number of atoms and formula units involved in

P=P_1 +C_p*(V-V_0 ) [9] where P and P1 are the measured and atmospheric pressures in psia, Cp is the calibration constant in psia/volts, V is the transducer voltage, and V0 is the offset voltage. RESULTS AND DISCUSSION To convert the measured voltages to pressures, we first determined the calibration constants of transducers 2 and 3 for each of the trials ranging from 6 to 14 psig. To do this, we calculated the measured shock wave velocity for each trial by dividing the distance between transducers 2 and 3 (0.548 m) by the measured time difference between the peak measured voltages. Next, assuming T = 70° F and γ = 1.4 (for air), we calculated the speed of sound and Mach number using equations 2 and 3.

The purpose of the Unknown Lab is to practice and implement all that was learned in this microbiology lab this semester about the different test used in identification of an unknown bacteria and to effectively identify an unknown bacterium.

Both the orifice and the Venturi meters produce a restriction in the flow and measure the pressure drop across the meter. The velocity of a fluid is expected to increase as the fluid flows from an open area, to a more constricted area. Assuming incompressible flow, a negligible height change, and steady state, Bernoulli’s equation can be simplified to show the correlation between the volumetric flow rate and the pressure drop. The equation for both meters is as follows:

An association between enzyme production, gene copy number, and gene evolution was explored by conducting analysis of the salivary amylase enzyme, AMY1A gene copy number, and the ancestral starch consumption in Homo Sapiens (Tracey 2017, p.22). It was hypothesized that the relative amount of starch consumption was very high for my personal ancestral diet, thus my AMY1 diploid gene copy number in my genome and salivary amylase concentration would be significantly higher than the population mean. With a population of 28 subjects (n=28), individual saliva samples were collected and compared to a calibration curve to determine the approximate amylase concentration by analyzing absorbance values. Individual samples of buccal cheek cells were

6. The outflow rate is measured by using a measuring cylinder. It is measured 3 times and averaged for a more accurate result. The results are shown in Table 2.

In this experiment, we will collect data from the sample and use the Ideal Gas Law:

The purpose of this experiment was to measure the magnitude of velocity in a flat plate boundary layer in which the pressure was constant. A pitot tube located at the top of the test section that was used to determine the total pressure across the boundary layer. The Pitot tube needed to be able to more along both horizontal and vertical directions for accurate measurements. Five different tubes, aligned along the x-axis, were placed under the wind tunnel test section to measure the static pressure. The result of both the static and total pressures is the dynamic pressure.

In February of 2017, I began a five month experiment testing the effect of fertilizers on algae growth. It began as a simple idea for a biology class, and evolved into an original complex of measurements, data, and results. The hypothesis, if the concentration of fertilizer in a solution containing algae is increased, then the algae growth will also increase, was proven correct in the first 20 days of the experiment, but disproven in the second 21 days. The highest rate of growth during the first time period was in the solution with the high levels of fertilizer. However, the second time period of the experiment showed that the most stable population was the solution which lacked fertilizer.

Anemometers are meteorological devices sed to measure wind speeds and can commonly be found in weather stations. They get their name from the Greek word for wind; anemos. Not only instruments used in meteorology but also in aerodynamics instruments that take airspeed measurements are described as anemometers. The first known description of an anemometer is said to be around 1450. Measurements of wind can be taken in two different forms, the speed of the wind and the pressure. However, there is a connection between these two. Anemometers can be divided into two different classes, measuring the speed of the wind or the pressure. As there is a connection between wind speed and pressure, an anemometer measuring the speed for example would still be able to provide information on the pressure of the wind. There are several different designs of anemometers that exist in the industry today, each using different methods to measure the speed or pressure of the wind.

When the open suction type wind tunnel is used for calibration purposes, air in front of the inlet section should be as dormant as possible [3].A baffle or a restraint can be installed at the inlet section to prevent any flow disturbances at the inlet of the wind tunnel [3]. However, if there are any fluctuations in the air at the inlet, a closed type wind tunnel can prevent this. In a closed-type wind tunnel, air is

The miniCFB was made out of clear acrylic pieces. Operators can clearly see the dynamics of gas-particle mixing throughout the riser. They can visually record the height of moving solids or bed height in the standpipe. The particles swirl indicating rotational dynamics inside the cyclone is clearly visible during gas solid separation. Researchers may take image of gas-solid interactions at any section of the rig, be it at the interface of the L-valve and riser entrance or at the riser exit and crossover. For instance, a high-speed particle image velocimetry (PIV) using a shadowing technique counted accurate number of falling particles in the lean region of standpipe. The shadowing method gives improved depth of focus enhancing accurate measurement of solid circulation rate at steady state.

The circuit was connected at the beginning of the lab, where the two leads from the pressure and flow sensor were connected into the data acquisition device Simulink program was built where “Scope”, “Reshape”, “Selector”, “Display”, and “Analog input” blocks were connected to acquire measured voltages from the connected pressure sensor, the voltage range was adjusted to match the expected voltages from the mass flow and pressure sensor circuits. Two channels were connected; having AI0 and AI1 input ports connected to the circuit. Also, the sample rate was adjusted to a sample rate of 1000, the Simulink program is shown in figure 1 in the results section. In part 2 of the experiment, The TA closed the red-handled valve for the rotameter so that no flow can leave the system.

The results of mean and peak pressure distribution over the roof surface for each cases are compared with full-scale field measurements and wind tunnel data within the next sub-sections accordingly.

Precautions: to ensure high quality of the data presented, precautions regarding data collection and instrument calibration will be followed (pressure transducers, cobra probes, laser sensors, and accelerometers, etc.). All data will be routinely checked for precision, accuracy and variability. Experimental procedures will be checked for accuracy and quality, and instruments will be calibrated. CFD models will be validated with experimental results.