Laboratory Manual for Semester 4: Physical and Analytical Chemistry ExperimentsAQEELAABDULQURESHI
The pdf provides theory, procedure and calculations of physical and analytical chemistry experiments (Conductometry, Potentiometry and Chemical Kinetics) of semester IV as per revised syllabus of Mumbai University, effective from academic year 2017-18.
Laboratory Manual for Semester 4: Physical and Analytical Chemistry ExperimentsAQEELAABDULQURESHI
The pdf provides theory, procedure and calculations of physical and analytical chemistry experiments (Conductometry, Potentiometry and Chemical Kinetics) of semester IV as per revised syllabus of Mumbai University, effective from academic year 2017-18.
Electrochemistry,Electrolytic and Metallic Conduction,Specific Resistance or resistivity (ρ),Specific Conductance or Conductivity (κ),Equivalent Conductance (Λ), Molar Conductance (Λm),Variation of Conductance with Dilution,Debye-Hückel-Onsager Equation,Kohlransch’s Law of Independent Migration of Ions,Faraday’s Laws of Electrolysis,Electrochemical Cells,The Nernst Equation,Oxidation Number
Oxidation Number / State Method For Balancing Redox Reactions,Half-Reaction or Ion-Electron Method For Balancing Redox Reactions,Half-Reaction or Ion-Electron Method For Balancing Redox Reactions,Common Oxidising and Reducing Agents
Includes a discussion of Voltaic and electrolytic cells, the Nernst equation and the relationship between electrochemical processes, chemical equilibrium and free energy.
**More good stuff available at:
www.wsautter.com
and
http://www.youtube.com/results?search_query=wnsautter&aq=f
The fundamentals of chemical equilibrium including Le Chatier's Principle and solved problems for heterogeneous and homogeneous equilibrium.
**More good stuff available at:
www.wsautter.com
and
http://www.youtube.com/results?search_query=wnsautter&aq=f
ELECTROCHEMISTRY
Important Formula For 1 year B.E students and also using for the first year PG student using this Formulas we can able to Find the Emf of the solution
Like galvanized corrosion as well in physics we dont know to represent the chemical Cell
Determine the velocity constant of alkaline hydrolysis of ethyl acetate by co...PRAVIN SINGARE
This experiment is based on the experimental demonstration of Determine the velocity constant of alkaline hydrolysis of ethyl acetate by conductometric method. The presentation is made for the chemistry undergraduate students of Mumbai University.
Electrochemistry,Electrolytic and Metallic Conduction,Specific Resistance or resistivity (ρ),Specific Conductance or Conductivity (κ),Equivalent Conductance (Λ), Molar Conductance (Λm),Variation of Conductance with Dilution,Debye-Hückel-Onsager Equation,Kohlransch’s Law of Independent Migration of Ions,Faraday’s Laws of Electrolysis,Electrochemical Cells,The Nernst Equation,Oxidation Number
Oxidation Number / State Method For Balancing Redox Reactions,Half-Reaction or Ion-Electron Method For Balancing Redox Reactions,Half-Reaction or Ion-Electron Method For Balancing Redox Reactions,Common Oxidising and Reducing Agents
Includes a discussion of Voltaic and electrolytic cells, the Nernst equation and the relationship between electrochemical processes, chemical equilibrium and free energy.
**More good stuff available at:
www.wsautter.com
and
http://www.youtube.com/results?search_query=wnsautter&aq=f
The fundamentals of chemical equilibrium including Le Chatier's Principle and solved problems for heterogeneous and homogeneous equilibrium.
**More good stuff available at:
www.wsautter.com
and
http://www.youtube.com/results?search_query=wnsautter&aq=f
ELECTROCHEMISTRY
Important Formula For 1 year B.E students and also using for the first year PG student using this Formulas we can able to Find the Emf of the solution
Like galvanized corrosion as well in physics we dont know to represent the chemical Cell
Determine the velocity constant of alkaline hydrolysis of ethyl acetate by co...PRAVIN SINGARE
This experiment is based on the experimental demonstration of Determine the velocity constant of alkaline hydrolysis of ethyl acetate by conductometric method. The presentation is made for the chemistry undergraduate students of Mumbai University.
Effect of annealing temperature on dc electrical conductivity properties of S...Premier Publishers
Thermal and DC electrical properties investigations of xSnO2 (50-x) PbO: 50V2O5(X=5, 10, 15 in molar ratio) glasses were carried out using X-ray diffractrometer (XRD), Differential scanning calorimetry (DSC) and two probe techniques. XRD results shown that the Perfect vitrification has been achieved and DSC results have indicated that the substituent SnO2 is replacing PbO in the glass network in such a way that the eutectic composition is maintained. The DC electrical conductivity studies on SnO2 substituted glass systems annealed at 1500C as well as 2250C and 3800C indicated that the conductivities increased as the annealing temperature is increased. activation energies also changed as the annealing temperature is changed.
PHP Frameworks: I want to break free (IPC Berlin 2024)Ralf Eggert
In this presentation, we examine the challenges and limitations of relying too heavily on PHP frameworks in web development. We discuss the history of PHP and its frameworks to understand how this dependence has evolved. The focus will be on providing concrete tips and strategies to reduce reliance on these frameworks, based on real-world examples and practical considerations. The goal is to equip developers with the skills and knowledge to create more flexible and future-proof web applications. We'll explore the importance of maintaining autonomy in a rapidly changing tech landscape and how to make informed decisions in PHP development.
This talk is aimed at encouraging a more independent approach to using PHP frameworks, moving towards a more flexible and future-proof approach to PHP development.
Transcript: Selling digital books in 2024: Insights from industry leaders - T...BookNet Canada
The publishing industry has been selling digital audiobooks and ebooks for over a decade and has found its groove. What’s changed? What has stayed the same? Where do we go from here? Join a group of leading sales peers from across the industry for a conversation about the lessons learned since the popularization of digital books, best practices, digital book supply chain management, and more.
Link to video recording: https://bnctechforum.ca/sessions/selling-digital-books-in-2024-insights-from-industry-leaders/
Presented by BookNet Canada on May 28, 2024, with support from the Department of Canadian Heritage.
GraphRAG is All You need? LLM & Knowledge GraphGuy Korland
Guy Korland, CEO and Co-founder of FalkorDB, will review two articles on the integration of language models with knowledge graphs.
1. Unifying Large Language Models and Knowledge Graphs: A Roadmap.
https://arxiv.org/abs/2306.08302
2. Microsoft Research's GraphRAG paper and a review paper on various uses of knowledge graphs:
https://www.microsoft.com/en-us/research/blog/graphrag-unlocking-llm-discovery-on-narrative-private-data/
Securing your Kubernetes cluster_ a step-by-step guide to success !KatiaHIMEUR1
Today, after several years of existence, an extremely active community and an ultra-dynamic ecosystem, Kubernetes has established itself as the de facto standard in container orchestration. Thanks to a wide range of managed services, it has never been so easy to set up a ready-to-use Kubernetes cluster.
However, this ease of use means that the subject of security in Kubernetes is often left for later, or even neglected. This exposes companies to significant risks.
In this talk, I'll show you step-by-step how to secure your Kubernetes cluster for greater peace of mind and reliability.
LF Energy Webinar: Electrical Grid Modelling and Simulation Through PowSyBl -...DanBrown980551
Do you want to learn how to model and simulate an electrical network from scratch in under an hour?
Then welcome to this PowSyBl workshop, hosted by Rte, the French Transmission System Operator (TSO)!
During the webinar, you will discover the PowSyBl ecosystem as well as handle and study an electrical network through an interactive Python notebook.
PowSyBl is an open source project hosted by LF Energy, which offers a comprehensive set of features for electrical grid modelling and simulation. Among other advanced features, PowSyBl provides:
- A fully editable and extendable library for grid component modelling;
- Visualization tools to display your network;
- Grid simulation tools, such as power flows, security analyses (with or without remedial actions) and sensitivity analyses;
The framework is mostly written in Java, with a Python binding so that Python developers can access PowSyBl functionalities as well.
What you will learn during the webinar:
- For beginners: discover PowSyBl's functionalities through a quick general presentation and the notebook, without needing any expert coding skills;
- For advanced developers: master the skills to efficiently apply PowSyBl functionalities to your real-world scenarios.
Smart TV Buyer Insights Survey 2024 by 91mobiles.pdf91mobiles
91mobiles recently conducted a Smart TV Buyer Insights Survey in which we asked over 3,000 respondents about the TV they own, aspects they look at on a new TV, and their TV buying preferences.
Builder.ai Founder Sachin Dev Duggal's Strategic Approach to Create an Innova...Ramesh Iyer
In today's fast-changing business world, Companies that adapt and embrace new ideas often need help to keep up with the competition. However, fostering a culture of innovation takes much work. It takes vision, leadership and willingness to take risks in the right proportion. Sachin Dev Duggal, co-founder of Builder.ai, has perfected the art of this balance, creating a company culture where creativity and growth are nurtured at each stage.
Epistemic Interaction - tuning interfaces to provide information for AI supportAlan Dix
Paper presented at SYNERGY workshop at AVI 2024, Genoa, Italy. 3rd June 2024
https://alandix.com/academic/papers/synergy2024-epistemic/
As machine learning integrates deeper into human-computer interactions, the concept of epistemic interaction emerges, aiming to refine these interactions to enhance system adaptability. This approach encourages minor, intentional adjustments in user behaviour to enrich the data available for system learning. This paper introduces epistemic interaction within the context of human-system communication, illustrating how deliberate interaction design can improve system understanding and adaptation. Through concrete examples, we demonstrate the potential of epistemic interaction to significantly advance human-computer interaction by leveraging intuitive human communication strategies to inform system design and functionality, offering a novel pathway for enriching user-system engagements.
DevOps and Testing slides at DASA ConnectKari Kakkonen
My and Rik Marselis slides at 30.5.2024 DASA Connect conference. We discuss about what is testing, then what is agile testing and finally what is Testing in DevOps. Finally we had lovely workshop with the participants trying to find out different ways to think about quality and testing in different parts of the DevOps infinity loop.
Observability Concepts EVERY Developer Should Know -- DeveloperWeek Europe.pdfPaige Cruz
Monitoring and observability aren’t traditionally found in software curriculums and many of us cobble this knowledge together from whatever vendor or ecosystem we were first introduced to and whatever is a part of your current company’s observability stack.
While the dev and ops silo continues to crumble….many organizations still relegate monitoring & observability as the purview of ops, infra and SRE teams. This is a mistake - achieving a highly observable system requires collaboration up and down the stack.
I, a former op, would like to extend an invitation to all application developers to join the observability party will share these foundational concepts to build on:
Observability Concepts EVERY Developer Should Know -- DeveloperWeek Europe.pdf
Conductance tutorial
1. TUTORIAL SHEET-I
(CONDUCTANCE)
1. Specific conductance of a decinormal solution of KCl at 18 C is 1.12Sm-1. The resistance
of a conductivity cell containing solution at the same temperature is 55ohm. What is the
cell constant?
2. The specific conductance of an N/50 solution of KCl at 25C is 0.002765 cm-1Ω-1. If the
resistance of cell containing this solution is 400Ω, what is the cell constant?
3. The specific conductance of N/5 KCl solution at 25C is 0.002780mho. The resistance of
the cell containing this solution is 500Ω. Calculate the cell constant.
4. If the resistance of N/50 KCl solution in a cell is 100Ω, calculate the cell constant.
5. Calculate the cell constant if the dimensions of the electrodes are 0.95cm & 1.015cm and
the two electrodes are separated by 0.45cm.
6. The resistance of a 0.01M solution of an electrolyte is 210Ω at 25C. Calculate the molar
conductance of the solution at the same temperature. The cell constant is 0.88cm-1.
7. The resistance of 0.5M solution of an electrolyte in a cell was found to be 45Ω. Calculate
the molar conductance of the solution if the electrodes of the cell are 2.2cm apart and
have an area of 3.8cm2.
8. 0.5N solution of a salt placed between two platinum electrodes, 20cm apart and of area
4cm2 has a resistance of 25Ω. Calculate equivalent conductance of the solution.
9. The specific conductance of an N/10 solution of KCl at 25C is 0.002765Ω-1. If the
resistance of cell containing this solution is 400Ω, what is the cell constant?
10. The resistance of decinormal solution of a salt occupying a volume between two platinum
electrodes 1.80cm apart and 5.4cm2 in area was found to be 32Ω. Calculate equivalent
conductance of the solution.
11. 0.5N solution of a salt placed between two platinum electrodes, 20cm apart and of area
4cm2 has a resistance of 25Ω. Calculate the equivalent conductance of the solution.
12. The resistance of 0.1N solution is 2.5x103Ω. Calculate equivalent conductance of the
solution. Cell constant = 1.15cm-1.
13. The resistance of a 0.5N solution of an electrolyte occupying a volume between two
platinum electrodes 1.72cm apart having an area o 4.5cm2 is 25Ω. Calculate the
equivalent conductance of the solution.
14. 0.1N solution of CH3COONa was placed between two electrodes 0.72cm apart with an
area of 2.25cm2. The resistance of solution was 52.40Ω. Calculate the specific and
equivalent conductance of the solution.
15. The resistance of N/100 solution of an electrolyte was found to be 210Ω at 25C.
Calculate the equivalent conductance of the solution. (Cell constant = 0.88).
16. Resistance of 0.01M aqueous solution of an electrolyte at room temperature is 420Ω and
cell constant is 84m-1. Calculate the molar conductance.
2. 17. Calculate the specific and molar conductance of a 0.0075M aqueous solution of KCl.
Given: conductance is 1.49x10-3S and cell constant is 1.05cm-1.
18. A conductivity cell is filled with 0.05M KCl. Its specific conductance and observed
resistance is 6.67x10-3Ω-1cm-1 and 243Ω, respectively. When the cell is filled with 0.01M
NaOH, observed resistance is 681Ω. Calculate specific and molar conductance of 0.01M
NaOH.
19. The resistance of a cell containing 0.02M KCl solution at 25C was found to be 17Ω. The
specific conductance of this solution is 27.7x10-3Ω-1cm-1. An exactly 0.01M solution of
another substance in the same cell had a resistance of 57Ω. Calculate the equivalent
conductance of this substance.
20. In a particular cell, 0.01M solution of KCl gave a resistance of 15Ω while 0.01M solution
of HCl gave a resistance of 51.4Ω at the same temperature. If the specific conductance o
0.01M KCl is 0.1409Sm-1, calculate cell constant, specific conductance and equivalent
conductance of HCl solution.
21. A conductivity cell on being filled with a 0.02M solution at 25C showed a resistance of
165Ω. The specific conductance of KCl solution used is 2.77x10-3Ω-1cm-1. The same cell
containing 0.01M NaCl solution gave an electrical resistance o 384Ω. Calculate the
specific and equivalent conductance of NaCl solution.
22. The specific conductance o water is 7.6x10-2Sm-1 and the specific conductance of 0.1M
aqueous solution of KCl is 1.1639Sm-1. A cell has a resistance of 33.20Ω when filled
with 0.1M KCl solution and 300Ω when filled with 0.1M CH3COOH solution. Calculate
the molar conductance of acetic acid.
23. A conductivity cell filled with 0.1M solution of KCl at 25C has a measured resistance of
24.96Ω. Calculate the cell constant if the specific conductance for 0.1M solution of KCl
is 0.011639Ω-1cm-1 and that for conductivity water is 7.5x10-8Ω-1cm-1. When the cell is
filled with a 0.01M solution of CH3COOH, the cell resistance is 1982Ω. Calculate the
molar conductivity of CH3COOH at this concentration.
Answers
1 0.56 cm-1 2 1.106 cm-1
3 1.39 cm-1 4 0.2765 cm-1
5 0.4668 cm-1 6 419.04 Ω-1cm2mol-1
7 25.73 Ω-1cm2mol-1 8 400 Ω-1cm2eq-1
9 1.106 cm-1 10 104.16 Ω-1cm2eq-1
11 400 Ω-1cm2eq-1 12 4.6 Ω-1cm2eq-1
13 30.57 Ω-1cm2eq-1 14 61.069 Ω-1cm2eq-1
15 419.047 Ω-1cm2eq-1 16 200 Ω-1cm2eq-1
17 0.0015645 Ω-cm-1 18 0.00238 Ω-1cm-1
208.6 Ω-1cm2mol-1 238 Ω-1cm2mol-1
19 0.0082614 Ω-1cm-1 20 0.0021135 cm-1
826.14 Ω-1cm2mol-1 4.112 x 10-4 Ω-1cm-1
