|56.2 |1.54+02 | |82.6 |1.62E+02 | |104.3 |1.68E+02 | |132.7 |1.77E+02 | Calculations and Results: Data from Table 1 |Diameter (m) |Mass (g) |Volume (cm3) |Density (g/ cm3) | |0.0061 |0.8923 |3.90E-05 |2.29E+04 | |0.00608 |0.8909 |3.87E-05 |2.30E+04
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triangles whose base angles are 55 each. If the lateral edge is 200 cm‚ find the lateral area and volume of the pyramid. 2 2 2 l – slant height h =(163.83) – (114.72) l o sin55 =200 h=116.96 cm o l=200sin55 l=163.83 cm e o cos55 =200 o 200cos55 =e e=114.72 2e=229.4 cm (163.83)(229.4) 2 2 S = 75‚175.2 cm S= 2 (229.4 )(116.96) 3 3 V= 2‚051‚181.2cm V= 4. Find the volume and total surface area of a frustum of a regular hexagonal pyramid if the base edges are 8 cm and
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| Mass of liquid | 10.1 g | 7.8 g | 12.7 g | Calculations: Density of liquid = Mass/Volume = g/mL Distilled Water = 10.1g/10mL = 1.01 g/mL Methanol = 7.8g/10mL = 0.793 g/mL Glycerol = 12.7g/10mL = 1.27g/mL Data Observation: Part B Sample | Sucrose | Sodium Acetate | Naphthalene | Mass of solid (g) | 5g | 2g | 2g | Volume of water (50mL) | 50mL | 50mL | 50mL | Volume of water & solid (mL) | 53mL | 52mL |
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his or her results‚ prevent waste of materials‚ and assure reproducibility of results. In order to correctly pipette liquids‚ the volume range must be first determined. p1000 micropipettes have a volume range of 200 - 1000 uL‚ p200 micropipettes have a volume range of 20 - 200 uL‚ and p20 micropipettes have a volume range of 0.5 - 20 uL. A dial is used to adjust volume within each given range. A clean tip is applied before pressing the plunger to the first (soft) stop. Still holding the plunger to
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Trends in Air Pressure and Lab – The Crush: The Effects of Air Pressure Work File Trends in Air Pressure Examining the Table Task 1: 1. Based on the information in the data table‚ finish the following sentence (record your answers on the Work File): "As altitude increases‚ the air pressure _________________." Task 2: 1. What causes air pressure? 2. What instrument is used to measure air pressure? 3. Why does air pressure decrease as you go up in altitude
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Introduction to Measurement Mass‚ Length‚ and Volume Introduction Much of what we know about the physical world has been obtained from measurements made in the laboratory. Skill is required to design experiments so that careful measurements can be made. Skill is also needed to use lab equipment correctly so that errors can be minimized. At the same time‚ it is important to understand the limitations of scientific measurements. Concepts Measurement Significant figures Accuracy
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cm3‚ 1.0cm3‚ 2.0cm3and 4.0cm3) and then top the volumetric flask up with distilled water. These would act as our standards to create a calibration curve. These standards are shown below in Table 1.0 Solution number | Volume of 25% propanol (cm3) | Volume of Ethanol(cm3) | Volume of H2O(cm3) | Percentage of Ethanol (%) | S1 | 10 | 0.5 | 14.5 | 2 | S2 | 10 | 1.0 | 14.0 | 4 | S3 | 10 | 2.0 | 13.0 | 8 | S4 | 10 | 4.0 | 11.0 | 16 | Table 1.0 Showing the percentage ethanol in the standard solutions
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boiling point and try to match it with those solutions given in Table 2 of experiment 2. Procedure Part A In Part A‚ The main purpose was to find the determination of the density of the unknown (j41) and by doing that we had to determine volumes of the unknown liquid (j41) using three different volumetric devices which are graduated cylinder‚ pipette and burette. Then we had to perform three measurement trials on each device. Graduated cylinder: I dried a clean 50.0 ml graduated cylinder
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CHE 101 Experiment 1 Lab Techniques and Measurements Purpose: The purpose of this lab experiment is to review and learn the proper techniques for the measurement of length‚ mass and temperature. After this experiment I expect to have a better knowledge on how to correctly and efficiently measure for future lab experiments. Data: DATA TABLE #1 DATA TABLE#2- DATA TABLE#3- DATA TABLE #4 DATA TABLE #5 DATA TABLE #6
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mL of distilled water was pipetted into it before it was placed on the balance again. Thus‚ the mass of the water was obtained. Five experimental trials were performed. The data and calculated results were tabulated (Table 1). Table 1: Mass and Volume of Water and Density Calculations Trial # Mass of water
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