Scale: | Accuracy | Precision | Metric unit side | 0.01 | 0.001 | Object | | Measure in | | | | Centimeter (cm) | Meter (m) | Inch(in) | Yard(yd) | Stirring rod: Length | 300.50cm | 3.005m | 12in | 0.33yd | Lab. Manual: Length | 271cm | 2.71m | 10.20in | 0.28yd | Lab. Manual: Width | 208cm | 2.08m | 8.60in | 0.24yd | B. Graduated Cylinder Volume reading when graduated cylinder is half filled with | (mL) | Potassium permanganate(KMnO4) | 12.6mL | Distilled Water (H2O)
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Calculate the energy change (q) of the surroundings (water) using the enthalpy equation qwater = m × c × ΔT. We can assume that the specific heat capacity of water is 4.18 J / (g × °C) and the density of water is 1.00 g/mL. The water has absorbed the heat of the metal. So‚ qwater = qmetal m=mass of water= density x volume = 1 x 26 = 26 grams ΔT = T(mix) – T(water) = 38.9 – 25.3 = 13.6 q(water) =26 x 13.6 x 4.18 q(water) = 1478 Joules 2. Using the formula qmetal = m × c × ΔT‚ calculate
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General ColleGe Chemistry LabPaq / Published by: Hands-On Labs‚ Inc. sales@HOLscience.com / www.HOLscience.com / Toll Free 866.206.0773 a laboratory manual of small-scale experiments for the independent study of General College Chemistry 50-0125-CK-01 LabPaq® is a registered trademark of Hands-On Labs‚ Inc. (HOL). The LabPaq referenced in this manual is produced by Hands-On Labs‚ Inc. which holds and reserves all copyrights on experiences. The laboratory manual included with a LabPaq
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Zinc in Pennies from Density Lab Report Procedure: For pre-1982 pennies- Mass 10 pennies‚ record data. Fill a 100mL graduated cylinder to 40mL or enough to fully submerge the pennies with water‚ record the volume in data table. Carefully place the pennies into the graduated cylinder‚ record the final volume of the water in data table. To find the volume of the pennies‚ subtract the final volume from the initial‚ record the data. Repeat this procedure twice more. Use the density formula to calculate
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Daniel H. Perry Procedures of Measurement and Density of Sugar in Soda Introduction The main focus of this lab was to acquire a basic understanding of how to properly use measuring devices in order to determine properties of a liquid. These properties are volume‚ mass‚ and density. The following measurements were obtained in the lab: density of water‚ both density and concentration of aqueous sugar solutions‚ and density of various soft drinks with respect to sugar. Additional experience was
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their opinions of the policy among others. Faculty was interviewed on their thoughts and how the policy helped with the classroom. Administration helped with the reasoning behind implementing the policy and some hints to phase outs of the computer labs located in the college of business. We found that students believed that the policy is not effective‚ but should be enforced. For faculty‚ some believe that the policy is helpful for learning and welcome laptops in the classroom while others feel
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factors like altitude and air density. The speeds in ideal gases and air have their own formulas: Thus‚ For a gas the K is given by the formula above‚ and the C is the coefficient of stiffness in solids. Thus the second formula is given. (Gamma) is the adiabatic index‚ then is the pressure‚ and the regular P is the density. In general‚ the speed of sound is given in the formula: K is a coefficient of stiffness‚ the bulk modulus‚ and P is the density. Then there is a more complex
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Lab Report Question- Why do few objects float in water where as others sink? Hypothesis- I think the objects that have a greater density than water will sink. So whichever object has a density more than 1g/cm³ will sink in water. This is known as relative density where the density of the substance is compared to the density of water. Hence‚ the object that has a greater mass: volume ratio than water will sink. Materials- * 1 measuring cylinder * 1 rectangular prism * 1 ball of plasticine
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Lab #3 January 30‚ 2012 1. Title: Laboratory Techniques and Measurements 2. Purpose: The purpose of this lab is to learn laboratory techniques and to how to measure precisely. During this lab I will learn how to measure length‚ temperatures‚ volume‚ density‚ and mass using laboratory equipment. I will be using laboratory equipment to prepare dilutions and calculate them while using an algebraic formula. 3. Procedure: In order to perform this lab I needed the following materials:
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Chemistry Lab Report Practical #1 Title: The Densities of Liquids and Solids Date: 29th of August 2014 Session: Friday 1 p.m. Student’s name: Alua Sarybay Lab partner’s name: Gulzhauhar Nurdildayeva Tutor’s name: Eugene Douglass Introduction The matter can be observed by determining‚ measuring and monitoring its chemical and physical properties. In this experiment the densities of liquids and solids will be determined. The density is an intensive property of matter that does not depend
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