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Free PDF download of Class 11 Chemistry revision notes and short key-notes to score more marks in exams, prepared by expert Chemistry teachers from the. ALLEN chemistry Chapterwise Notes and Problems with Solutions PDF | Allen Physics | Allen chemistry | Allen Maths PDF Free download. PDF version handwritten notes of Chemistryfor 10+2 competitive exams like JEE Main, WBJEE, NEST, IISEREntrance Exam, CUCET, AIPMT.
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Class 11 Chemistry Revision Notes for Chapter 7 - Equilibrium - Free PDF Download
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Reference Book Solutions. ICSE Solutions. School Syllabus. Revision Notes. Important Questions. Math Formula Sheets. Become a Teacher. Our Results. About Us. About Vedantu. Our Testimonials. If you are taking a prescription or other drug that will affect your alertness, notify your instructor before going into lab.
Chemistry Notes For Class 11 PDF
No students are allowed in the stockroom. No lab visitors without permission of the lab instructor. Report all accidents or injuries to the instructor immediately! If you do not understand a procedure or you cannot read a label, contact the instructor. Do not gamble with your and others safety when there is a question.
What you don t know can hurt you. Ditch the foolish notion that asking questions will make you look stupid. Some Further Explanations 1. Do not pipette by mouth You say, "But it's only water. Using disposable pipettes? I know lots of people who rinse them and put them back!
Learn to use the pipette bulb or automated pipetter. Read these and follow the recommendations for safe use and disposal of the material. Dress appropriately for chemistry lab, not fashion or the weather No sandals, no clothes you love more than life, no contact lenses, and long pants are preferable to shorts or short skirts.
Tie long hair back. Wear safety goggles and a lab coat. Even if you aren't clumsy, someone else in the lab probably is. If you take even a few chemistry courses you will probably see people set themselves on fire, spill acid on themselves, others, or notes, splash themselves in the eye, etc. Don't be the bad example to others, remembered for all time for something stupid!
Identify the Safety Equipment And know how to use it! Given that some people possibly you will need them, know the locations of the fire blanket, extinguishers, eyewash, and shower.
Ask for demonstrations! If the eyewash hasn't been used in a while the discoloration of the water is usually sufficient to inspire use of safety glasses. Don't Taste or Sniff Chemicals For many chemicals, if you can smell them then you are exposing yourself to a dose that can harm you!
If the safety information says that a chemical should only be used inside a fume hood, then don't use it anywhere else. This isn't cooking class - don't taste your experiments! If a chemical can go in the sink, be sure to wash it away rather than risk an unexpected reaction between chemical 'leftovers' later. Pay attention to the order in which chemicals are to be added to each other and do not deviate from the instructions.
Even chemicals that mix to produce seemingly safe products should be handled carefully. For example, hydrochloric acid and sodium hydroxide will give you salt water, but the reaction could break your glassware or splash the reactants onto you if you aren't careful. Take data during lab Put data directly in your lab book rather than transcribing from another source e.
Not after lab, on the assumption that it will be neater. There are lots of reasons for this, but the practical one is that it is much harder for the data to get lost in your lab book. For some experiments, it may be helpful to take data before lab. Student Activity Crash, bang , wallop! Here is a disaster zone! But a real school chemistry laboratory is one of the safest places in which to work.
Good chemists always work carefully and safely. The rules of the laboratory have been forgotten by these students.
Look carefully at the disaster zone above. Make a list of as many of the dangers as you can b. From this list, make a set of Rules of the Laboratory 2. Draw a rough sketch of the laboratory you normally use.
Mark on it where the following items are usually kept. Rewrite your Rules of the laboratory positively by starting with Do this, Always, You should ….. The scientific method The scientific method is a set of ideas or a procedure that scientists use to investigate things they want to understand.
By using the method, you can be sure you're carrying out your project correctly. The scientific method allows you to investigate an experiment in a step-by-step method.
Problem: What are you going to solve in the lab? The problem or purpose explains exactly what you hope to accomplish in the investigation. Hypothesis: How do you think it is going to turn out?
Use the facts you already know to come up with a guess that might really make sense. Materials and Apparatus: List what equipment you will need to complete the experiment. Include diagrams of set up apparatus if required to do so in this section. Procedure: What you must do to complete the experiment. Write down the steps you need to follow.
Data and Work: Include the tables, observations and work you did during the experiment. This section is where you keep very careful notes on everything you do and everything you find out.
Be sure you write down or draw what really happened, even if it's not what you thought would happen. At the end, you look over all your data and think about it very hard. You think of the results of your procedure, or how everything turned out. Analysis Questions: You do not need to write out questions, but you must answer in sentences that include the question.
Conclusion: You must say what you found out during the lab. You figure out whether your results agreed with your hypothesis or not. Put everything you observed together and try to make some sense out of it.
Be neat. Your lab should be organized and easily readable. Hand in a good copy. You can take a rough copy of data tables into the lab and then recopy for your hand-in report. Hand in lab reports on time! Learning activity 1. Name two basic storage and chemical handling apparatus. Name one accurate apparatus for measuring liquid volume.
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How do you determine the mass of an object? Name two safety devises to prevent chemical splash. Names of Common Laboratory Apparatus Which apparatus? In everyday life, we need to use the right tools for the job we are doing.
The same is true in the science lab. There are lots of types of different chemical apparatus, all designed to do different jobs. Using the right apparatus makes your practical work safer. The pictures below show some of the apparatus you will be expected to know about and use in a chemistry laboratory.
Burette Made from accurate uniform wall tubing to insure the stipulated capacity tolerances. Features durable, permanent markings; fine, sharp lines and large, easy-to-read numbers.
The stopcock is carefully ground and finished to assure a leak-free operation. A burette is used to deliver solution in precisely measured, variable volumes. To fill a burette, close the stopcock at the bottom and use a funnel.
Class 12 Chemistry Revision Notes for Chapter 2 - Solutions
Previous Year Papers. Mock Tests. Sample Papers. Reference Book Solutions. ICSE Solutions. School Syllabus. Revision Notes. Important Questions. Math Formula Sheets. Become a Teacher. Our Results. About Us. About Vedantu. Our Testimonials. Our Blog. Contact Us. Share this with your friends Share Facebook. RD Sharma Class 10 Solutions. RD Sharma Class 9 Solutions. RS Aggarwal Solutions. RS Aggarwal Class 10 Solutions. ICSE Class 10 solutions.
Lakmir Singh Solutions. Chemistry Formula. Question Papers. Previous Year Question Paper. Quick Links.It helps you understand even the most abstract concepts with clarity and enables you to do well for the exam. General Chemistry Laboratory safety rules and regulations Your school science laboratory is set up so that you can perform science experiments in safety provided that you follow the proper procedures and safety precautions listed below.
It is used for the ionic compounds. With practice, they can ease their tensions and also enjoy the process of studying.
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