Mole ConcepT 01 | How To CalcuLate Number of Moles | Mass Volume Relationship | Revision

[@PhysicsWallah]

Live Classes, Video Lectures, Test Series, Lecturewise notes, topicwise DPP, dynamic Exercise and much more on Physicswallah App. Download the App from Google Playstore ( bit.ly/2SHIPW6 ) Physicswallah Instagram Handle : instagram.com/physicswallah/ Physicswallah Facebook Page: facebook.com/physicswallah Physicswallah Twitter Account : twitter.com/PhysicswallahAP?s=20 Physicswallah App on Google Play Store : bit.ly/2SHIPW6 Physicswallah Website: physicswallahalakhpandey.com/ LAKSHYA Batch(2020-21) Join the Batch on Physicswallah App bit.ly/2SHIPW6 Registration Open!!!! What will you get in the Lakshya Batch? 1) Complete Class 12th + JEE Mains/ NEET syllabus - Targeting 95% in Board Exams and Selection in JEE MAINS / NEET with a Strong Score under Direct Guidance of Alakh Pandey. 2)Live Classes and recorded Video Lectures (New, different from those on KZbin) 3)PDF Notes of each class. 4)DPP: Daily Practice Problems with each class having 10 questions based on the class of JEE Mains/NEET level. 5)Syllabus Completion by end of January, 2021 with topicwise discussion of Last 10 Years Problems in Boards, JEE Mains/NEET within Lecture. 6)The Complete Course (Video Lectures, PDF Notes, any other Study Material) will be accessible to all the students untill JEE Mains & NEET 2021 (nearly May 2021) 7)In case you missed a live class, you can see its recording. 8)You can view the videos any number of times. 9)Each chapter will be discussed in detail with all concepts and numericals 10)Chapterwise Approach towards JEE Mains/ NEET & Board Exams. ****Test Series for XI & XII**** We provide you the best test series for Class XI,XII, JEE, NEET chapterwise, which will be scheduled for whole year. The test series follows very logical sequence of Basic to Advance questions.& Evaluation of Test and Solution to all the questions at the end of the test. MoLE ConCepT in 40 mins : CBSE / ICSE : CHEMISTRY : Class 10, Class 11, Class 12 kzbin.info/www/bejne/mHqQqpugbryarrM MOLE Concept in 6 mins : Class X CBSE / ICSE : kzbin.info/www/bejne/jXi2eKeanNGNsMk MOLE CoNcEpT : STOICHIOMETRY : Class X , XI , XII : CBSE /ICSE kzbin.info/www/bejne/h5yVomSBlruIfKM MolecuLar FormuLa and EmperiCal Formula | Percentage CompositioN | Class 10 , 12 ICSE / CBSE kzbin.info/www/bejne/pImUk2l9eq9rjrc Mole ConcepT 01 | How To CalcuLate Number of Moles | Mass Volume Relationship | Revision kzbin.info/www/bejne/nHKtmGR-lq5ripY How to BALANCE any Chemical Equation - ABCD Method | Best Way to Balance Chemical Equation kzbin.info/www/bejne/bYjbYqKljNOdh5I Mole Concept || Class 9,10,11 || Stoichiometry || Percentage Composition | Compilation Of OLd Videos kzbin.info/www/bejne/pZ7YmYCZg56tY68

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Question:9 MnO2 + 4HCl → MnCl2 + 2H2O + Cl2 1.746g of pure MnO2 is heated strongly with conc. HCl. Calculate: a) Moles of MnO2 used. b) Mass of salt formed. c) Moles of chlorine gas formed. d) Volume of chlorine gas formed at STP. e) Mass of acid required.

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Ans.a) 0.02 mol Ans.b) 2.52g Ans.c) 0.02 mol Ans.d) 0.448g Ans.e) 2.92g I solved all by myself...Hope all are correct !!

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Atomic mass of an atom that we calculate is not actual, it is the relative atomic mass. For eg- 16u is not actual atomic mass of oxygen. It is the approximate value called relative atomic mass. An... Gram atomic mass is the atomic mass of atom in terms of gram. For eg- gram atomic mass of oxygen= 16g

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