formation of water molecules from the H+ ions from the acid reacting with the OH- ions from the base. H+(aq) + OH-(aq) H2O(l) When a weak acid is neutralised some of the energy is needed to dissociate the molecules to make the hydrogen ions available for neutralisation. The result is a value for neutralisation enthalpy lower than - 57 kJ/mol (numerically lower‚ not more negative!) Note that as the weak acid is in equilibrium as the hydrogen ions are ’mopped up’ by the base the equilibrium
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A2 Chemistry Coursework Section 1 Aims: I aim to find out the order of reaction with respect to [H2O2] and [2I-]. I aim to find out the activation enthalpy of the reaction by finding the rate of reaction at different temperatures using the Arrhenius Equation. The experiment will go as follows: Into a conical flask put 15cm3 of distilled water and add 2cm3 of [X]moldm-3 potassium iodide (KI) solution and 1cm3 of 2moldm-3 sulphuric acid. Then add to this 2.5cm3 of 5vol (0.42moldm-3) hydrogen
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Investigating the Biomolecules found in Gelatin Abstract: For this inquiry lab‚ the research team tested the gelatin solution for the presence of biomolecules. The team searched for the presence of starch‚ glucose‚ lipids‚ and proteins through the use of indicators: Sudan III‚ Lugol’s iodine‚ Benedict’s solution‚ and Biuret’s reagent. After testing the gelatin solution in the presence of the indicators‚ the results showed that Lugol’s reacted‚ turning orange-pink (oils) and the Biuret reagent (protein)
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Business 3.4 Internal constraints SWOT analysis SWOT analysis is a strategic planning method used by business to determine their strengths‚ weaknesses‚ opportunities and threats Businesses need to consider the financial and practical implications of any marketing mix that they want to implement. Very few businesses are able to operate a marketing mix without considering the costs involved. Typically costs can limit a business’s marketing mix in several ways. Promotion The first internal
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In this archive file of HIS 135 Entire Course you will find the next documents:HIS-135-Assignment-Cold-War-Ideology-and-Policies.docHIS-135-Assignment-The-Vietnam-War.docHIS-135-Capstone-CheckPoint-End-of-the-Cold-War.docHIS-135-CheckPoint-Comparing-KennedyG History - General History ASHFORD HIS 204 American History Since 1865 If dragging yourself out of bed at 6:00 am is impossible‚ don’t torture yourself with 7:00 am classes. Most schools offer classes in a wide range of time slots
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In this pack of NTC 362 Entire Course you will find the next docs: NTC 362 Week 1 DQs.doc NTC 362 Week 1 Individual Assignment- Tele-communications Evolution Timeline.pptx NTC 362 Week 2 DQs.doc NTC 362 Week 2 Individual Assignment- INDP‚ Part 1.doc NTC 362 Week 2 Learning Team Assignment Analog and Digital Comparison Paper.doc NTC 362 Week 3 DQs.doc NTC 362 Week 3 Individual Assignment INDP Part 2.doc NTC 362 Week 3 Learning Team Assignment Protocol Paper.doc NTC 362 Week 4 DQs.doc NTC
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In this archive file of BUS 230 Entire Course you will find the next documents: BUS-230-Unit-1-Part-1.doc BUS-230-Unit-1-Part-2.doc BUS-230-Unit-2-Part-1.doc BUS-230-Unit-2-Part-2.doc BUS-230-Unit-3-Part-1.ppt BUS-230-Unit-3-Part-2.doc BUS-230-Unit-4-Part-1.doc BUS-230-Unit-4-Part-2.doc BUS-230-Unit-5-Part-1.doc BUS-230-Unit-5-Part-2.doc Deadline: ( )‚ Business - Management Seeking fresh tutorials for entire course MGT230 to include DQ’s and instructor feedback. Thank you! Try
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Purpose Determine which kinds of reactions involve electron transfer as the driving force. Background Redox (reduction-oxidation) reactions include all chemical reactions in which atoms have their oxidation state changed. So‚ when a metal and a nonmetal react‚ there is an ionic bond formed‚ which means one of them loses electrons while the other gains them. Since this reaction involves the exchange of electrons it is termed as a redox reaction. The oxidation states in a metal- nonmetal are simple
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In this archive file of PSYCH 550 Entire Course you will find the next documents: PSYCH 550 Week 1 DQ 1.doc PSYCH 550 Week 1 DQ 2.doc PSYCH 550 Week 1 Individual Assignment Learning Paper.doc PSYCH 550 Week 2 DQ 1.doc PSYCH 550 Week 2 DQ 2.doc PSYCH 550 Week 2 Individual Assignment Simple Stimulus Learning Paper.doc PSYCH 550 Week 3 DQ 1.doc PSYCH 550 Week 3 DQ 2.doc PSYCH 550 Week 3 Learning Team Assignment Classical Conditioning Paper.doc PSYCH 550 Week 4 DQ 1.doc PSYCH 550 Week 4 DQ 2.doc PSYCH
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Lab #5: Grignard Reaction – Synthesis of Triphenylmethanol John Kang Chem 152L Performed: 7/20/04 Date submitted: ________________ Lab Partners: Sang Lee‚ Vicky Lai TA: John Stanko Abstract: This experiment explored the synthesis of triphenylmethanol through the use of Grignard reagents. The percent yield of the product was 10% on a relatively humid day. The melting point was calculate to be 127.2oC with a literature value of 162oC. An IR spectrum of the product was taken and used
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