density is represented by the ratio of its mass and volume. It is given by the equation ρ= massvolume 1. The SI unit of density is kg/m3. However‚ its CGS units‚ g/cm3 or g/ mL‚ are the most commonly used ones in the laboratory. The conversion is given by 1 gcm3=1gmL=1000 kgm3 [1]. The density of a homogeneous liquid is also defined by the amount of mass per unit volume. Liquid is usually confined in a container‚ so its volume is relative to the volume of its container [2]. There are various instruments
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Thermal Expansion Thermal expansion is the tendency of matter to change in volume in response to a change in temperature‚ through heat transfer. The coefficient of thermal expansion describes how the size of an object changes with a change in temperature. Specifically‚ it measures the fractional change in size per degree change in temperature at a constant pressure. Several types of coefficients have been developed: volumetric‚ area‚ and linear. This is used depending on the particular application
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0223kg | 3 Quarters‚ 1 Dime‚ 5 Pennies | 30g | 33.5g | .0335kg | Key | 14g | 8.8g | .0088kk | Key‚ 1 Quarter‚ 4 Pennies | 27g | 25.1g | .0251kg | Data Table 4: Liquid measurements. | | | Mass A | Mass B | Mass B - A | | | Liquid | Volume(mL) | GraduatedCylinder (g) | GraduatedCylinderwith liquid (g) | Liquid (g) | Densityg/mL | %Error | Water | 5ml | 16.4g | 21.5g | 5.1g | 1.02g/ml | 2% | Isopropyl alcohol | 5ml | 16.4g | 20.6g | 4g | .08g/ml | 1.78% | Data Table 5: Magnet
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Measurement in Chemistry Assignment‚ Due 22 March‚ Surname A-D Instructions: All questions must have the correct units and correct number of significant figures. Show all calculations and carry the units throughout. Submit your answers on a new page. Include your name and student number. Q1. Report the number of significant figures in each of the following: a. 0.20 b. 9.05 c. 164300 (1 mark) Q2. Report each of the
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Trial 1 | Trial 2 | Trial 3 | Mass of Empty 10 mL graduated cylinder (grams) | 25.50 | 25.50 | 25.50 | Volume of liquid (milliliters) | 8.10 | 8.30 | 8.10 | Mass of graduated cylinder and liquid (grams) | 35.50 | 36.00 | 35.50 | Part II: Density of Irregular-Shaped Solid | Mass of solid (grams) | 38.285 | 42.345 | 42.577 | Volume of water (milliliters) | 51.00 | 50.95 | 52.90 | Volume of water and solid (milliliters) | 55.50 | 55.90 | 56.95 | Part III: Density of Regular-Shaped Solid
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measurements of mass and volume. For volume of each liquid‚ the instruments used were a 50ml burette‚ a 50ml graduated cylinder and a 10ml gravity pipette. For each instrument above‚ the measurements were repeated 3 times. The mass of each sample was recorded by an electronic balance with the smallest gradation of 0.01g. The information collected then was used to determine the densities of water and alcohol. Discussion: The goal of using three different instruments for volume and
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Solute potential: (ψS) = – iCRT = (-2)(.3)( 0.0831)(297)=14.81 bars Water potential: ψ = ψP + ψS = = water potential= 0 + 14.81= 14.81 LAB PART 2 Part 1: What factors limit cell size? 1. What is surface area? Area of given surface 2. What is volume? Area inside a shape 3.
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Mass B-A Liquid Volume (ml) Graduated cylinder (g) Graduated cylinder Liquid (g) Liquid (g) Density g/ml % Error Water 5ml 18.85g 23.4g 4.55g 0.91g/ml Isopropyl alcohol 5ml 18.85g 23.0g 4.15g 0.83g/ml Object Mass (g) Length (cm) Width (cm) Height (cm) Volume (cm3) Density (g/ cm3) Magnet 4.35g 2.55cm .6cm .6cm .918 cm3 4.74g/cm3 Object Mass (g) Initial volume of Graduated cylinder (ml) Final volume of Graduated cylinder (ml) Object volume (ml) Density (g/ml)
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Collar Calculations Pump Pressure/ Pump Stroke Relationship Cost Per Foot Temperature Conversion Formulas Chapter 2 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18. Basic Calculations P. 25 Volumes and Strokes Slug Calculations Accumulator Capacity — Usable Volume Per Bottle Bulk Density of Cuttings (Using Mud Balance) Drill String Design (Limitations) Ton-Mile (TM) Calculations Cementing Calculations Weighted Cement Calculations Calculations for the Number of Sacks of Cement
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Date of Experiment: February 5‚ 2013 Report Submitted: February 11‚ 2013 Title: Laboratory Techniques and Measurements Purpose: To gain knowledge about the International System of Units and use it to determine volume‚ mass‚ length‚ and temperature. To learn to use these forms of measurement to determine density and concentration‚ as well as learning basic lab equipment to create dilutions. Procedure: Part 1: After reading the various information given‚ I gathered
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