Lab #2 Determination of Density Britney Williams Chemistry 121 Dr. Yu 1/29/13 Purpose: To determine the densities of aluminum and zinc cylinders Density is the relationship between the mass of an object and its volume. Sometimes density can be easy to sense. If two objects have exactly the same shape and size‚ the denser one may feel heavier. If their densities are close together‚ it can be hard to tell the difference. It gets really tough if you are dealing with materials that have very different
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significant bonuses is a way to keep your best people from looking elsewhere for a job. 3. Bonuses are usually determined as a percentage of annual salary‚ though giving all employees the same monetary bonus is also an option Eligibility and determination of bonus Every employee shall be entitled to be paid by his employer in an accounting year‚ bonus‚ in accordance with the provisions of this Act‚ provided he has worked in the establishment for not less than thirty working days in that year.
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Profit Determination Prepared by John Hoggett and Clare Innes Measurement of Profit • Cash basis • Cash income received - Cash expenses paid – Revenues recorded when received – Expenses recorded when paid • Accrual basis • Profit = Income (incl. Revenues) - Expenses – Revenue is recognised when the anticipated inflow of economic benefit can be reliably measured – Expenses when the consumption of benefits can be reliably measured 2 Adjusting Entries • The need for adjusting entries-
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Complexometric Determination of Water Hardness Mike Monaghan CHM 152LL 01/27/2013 Abstract: What can be found from this experiment is as follows‚ Introduction/Background: This lab was about determining water hardness. Water hardness is the amount of metal ions in the water. The most common found ion in the water is calcium ions and typically with a charge of +2. Water hardness plays a big significance in our daily life because to many metal ions in our drinking water can have adverse
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Free will Vs Determination Do you make your own choices or your destiny has been decided for you by circumstances behind your control? For thousands of years‚ this question has puzzled philosophers‚ scientist and anyone who thinks about how they choose to act and live. Part of the complexity of the matter is related to the metaphysical nature of the subject which has a close affinity with the concept of GOD. Some people think that "Everything" that happens in nature and life
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The Native Hawaiians Right to Self Determination Monikalynn Hawkins ANT 101 Introduction to Cultural Anthropology Dr. Ronald K. Bolender October 22‚ 2009 Ancient Hawaiian genealogy suggests settlement of the islands by Tahitian navigators sometime between A.D. 300 and A.D. 800. (Trask‚ 1993‚ p.4) Before the coming of colonizers‚ the native society was organized as a familial society‚ consisting of tribes and chiefdoms‚ which provided
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Tittle: Determination of moisture Objectives: 1. To determine the moisture content of selected food samples using drying oven method 2. To determine the moisture content of selected food samples using moisture analyzer. Introduction: Moisture content is one of the most commonly measured properties of food materials. The choice of an analytical procedure for a particular application depends on the nature of the food being analyzed and the reason the information is needed. In this experiment
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Solubility Product Determination Purpose • To determine the solubility product constant‚ Ksp‚ of an ionic compound. Introduction The solubility product constant‚ Ksp‚ is a particular type of equilibrium constant. The equilibrium is formed when an ionic solid dissolves in water to form a saturated solution. The equilibrium exists between the aqueous ions and the undissolved solid. A saturated solution contains the maximum concentration of ions of the substance that can dissolve at
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Purpose: The purpose of this was to determine the concentration of sodium carbonate in an unknown sample by titration. The solution of hydrochloric acid was prepared and standardized using Na2CO3. Observations: Week 1: Standardizing hydrochloric acid using sodium carbonate with bromocresol green indicator Table 1: Titration of sodium carbonate using hydrochloric acid Trial | Mass of Na2CO3 (g) | Burette Reading (mL) | Final Volume of HCl (mL) | | | Initial | Final | | 1
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Chemistry – Titration experiment I – Standard Solution Prep Preparation of a standard solution of sodium carbonate Anhydrous sodium carbonate is a suitable chemical (primary standard) for the preparation of a standard solution. Standard Solutions are critical in chemistry because you need to have solutions with an EXACT known concentration and volume. Chemicals/Materials: solid sodium carbonate (Na2CO3) distilled water Apparatus: 250cm3 volumetric flask 250cm3 beaker Glass stirring
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