measuring the pH of liquids work. We were able to compare the liquids based on their pH level and determine which liquid was acidic or basic. Our results showed that if something came out to be seven or less‚ according to the pH scale‚ it means that an acid is a substance that donates hydrogen ions. Because of this‚ when an acid is dissolved in water‚ the balance between hydrogen ions and hydroxide ions is shifted. Now there are more hydrogen ions than hydroxide ions in the solution (2). A base can increase
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Lab Report Purpose The purpose of this lab is to determine the identity of an unknown liquid by measuring its density and its 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
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Abstract: The objective of Experiment 1 was to observe some chemical changes. While observing the chemical changes in elements I also experimented with household cleaners to see how much chemical properties relate to our daily lives. Chemical changes occur all around me and I go without noticing them all the time without a second thought. This experiment opens my eyes to different chemical reactions occurring around me. This experiment also shows the importance of dilution. If I did not dilute something
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Data Tables: Part 1: Chemicals Well No. Observations of the Reaction A. NaHCO3 + HCl 1A Bubbles appeared for 5 seconds. Now clear in color‚ no bubbles B. HCl + BTB 2A Turned from clear to yellow C. NH3 + BTB 3A Turned from clear to dark blue D. HCl + blue dye 4A Turned from clear to green E. Blue dye + NaOCl 5A Turned from blue to light blue with the 1 drop of HCl 6A Turned from blue->light blue->yellow->light yellow->clear‚ transparent F. NaOCl + KI 7A Turned from clear to Light yellow
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1. Should auditors insist that their clients accept all proposed audit adjustments‚ even those that have an “immaterial” effect on the given financial statements? Defend your answer. The auditors should not insist that their clients accept all proposed audit adjustments. The auditor’s main duty is to provide reasonable assurance to verify the accuracy and compliance of client’s financial statements‚ to ensure that it conveys data and information of events occurred within the accounting period
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Chemical Periodicity Engr. Imelda Galera De La Salle University-Dasmariñas Dasmariñas‚ Cavite Philippines ABSTRACT Chemical periodicity was demonstrated using different samples of elements from Group IA‚ IIA and IVA. These samples are: Li2CO3‚ Na2CO3‚ K2CO3‚ MgCO3‚ CaCO3‚ BaCO3‚ Carbon‚ Tin‚ Silicon and Lead. Each sample was placed in a test tube‚ (one sample and one test tube) and the physical color‚ appearance and state was defined. Water was used to test the solubility of the element
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CASE: MAKING NORWICH TOOLS LATHE INVESTMENT DECISIONS PAR T A: PAYBACK PERIOD years cash flows 0 1 2 3 4 5 (660‚000) 128‚000 182‚000 166‚000 168‚000 450‚000 PBPA LATHE A cumulative cash flows cash flows LATHE B cumulative cash flows 128‚000 310‚000 476‚000 644‚000 1‚094‚000 (360‚000) 88‚000 120‚000 96‚000 86‚000 207‚000 88‚000 208‚000 304‚000 390‚000 597‚000 4.04 PBPB 3.65 ACCEPTABILTY OF EACH PROJECT: Lathe A will be
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Chemical Change Lab Name Data Table 1: |Chemicals |Well # |Reaction on White Paper |Reaction on Dark Paper | |NaHCO3 + HCl |A6 |Remains clear. |Remains clear. | |HCl + Blue Dye |B6 |Orange color. |Cannot distinguish color
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Energy‚ often in the state of heat‚ is involved in chemical reactions and phases changes. Changes in energy‚ can translate in temperature differentiations. In such a case‚ energy is transferred as heat. The quantity of heat exerted in a reaction referred to as (joules) can be identified through the following equation: Heat Exerted= (Mass of Sample) x (Specific Heat) x (Change in Temperature) q=msΔT Within a calorimeter is where the reactions within this lab take place. A calorimeter allows the
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Case Study: ‘Ocean Carriers’ By: Alyssa Linder Wenliang Zhang Xhangoli‚ Eva 1. Daily spot hire rates are determined according to supply and demand of the shipping capacity. According to the article‚ the supply of ships available equals the number of ships currently in the fleet plus any new ships added‚ minus any scrapings and sinking. According to Exhibit 2‚ there are a limited number of ships older than 24 years which are likely to be scraped. For those ships under the age group
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