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2021 KCSE Past Papers with Marking Schemes

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This is the same type of experiment your instructor streamed over the web during the first week of this lab and you will not have to do a titration curve.  The goal of this activity is to get you to think about how you are getting the acid dissociation equilibrium constant in the titration curve, and if you know the concentration of all reagents, you can figure it out with just one measurement.

In this lab you need to make one simple measurement. You do not dilute the unknown or the stock base .  You need to take your unknown acid and add a specific amount of base to it, and from that one action, get all the data you need to calculate the equilibrium constant.

Question 1: Write down the molarity and volumes of the stock solutions you mixed to calculate K a .  Remember, you can only mix the stock solutions once.

Virtual Lab

This virtual lab should load the Unknown Weak Acid" lab, if it says "Default" you need to refresh the page.

Mr. MathWell

If you’re going to do math, do MATHWELL!

Chemistry 30

APA Report Sample with Guidelines for Scientific Reports

Chemistry 30 Introduction

**IMPORTANT NOTE FOR STUDENT NOTES: You may print out notes at home and fill in the blanks and draw structures as we move through the lessons in class, or if you want to open in google docs in order to edit the .doc versions of these notes, you should right click the link and ‘SAVE LINK TO GOOGLE DRIVE” then in google drive “OPEN WITH GOOGLE DOCS” and you’ll be able to edit the notes on your computer.

• Chem 30 Intro video – basic atomic structure (#1of2) lesson
• Chem 30 Intro video – basic atomic structure (#2of2) lesson
• Average Atomic Mass Calculation Example Video
• Physical Sc 20 Ions and formulas review
• Stoichiometry Rev Asn’t 1 #6
• Stoichiometry Review Asn’t #2
• Review asn’t 2 #4 Stoichiometry
• Stoichiometry Review Asn’t #5

Materials Science A – Atomic Model, Quantum Mechanics, Bonds

Ch 4 – History of the Model of the Atom – complete blank notes attached. Ch 5-8 complete blank notes package attached Ch 5 : p.167-169 #60,62,63,66,71,72,77,78,79,83,85,86,87,89,91,92 Ch 6: p.198-200 #42,43,45,52,58,61,67,78,79,86 Ch 7: p. 232-235 #48,49,51,52,53,57,58,63,89,93 Ch 8: p. 274-275 #78,79,113,114,117,118,119,122

• Chemistry 30 – History of the Atomic Model Lesson
• Model of the Atom review KAHOOT! #1
• Model of the Atom review KAHOOT! #2
• Model of the Atom review Quizlet (Kihew )
• Chem 30 Ch 5.1 Electron behaviourYouTube video   ‪16 minutes‬
• Chem 30 Ch 5 Electron Dot Diagrams YouTube video   ‪29 minutes‬
• Chem 30 Quantum numbers and filling order 5.2 5.3YouTube video   ‪39 minutes‬
• Chem 30 P orbital filling order, electron configuration, electron Notation 17 minutes
• Chem 30 Bond character and Electronegativities 27 min
• Chem 30 Metallic Bonds
• Chem 30 Atomic orbitals – Scandium Z =21
• Chem 30 Schrodinger’s discovery of the shape of atoms 7 min
• Quantum mechanics for Dummies 22 minutes
• Elastic and Plastic Deformation of Materials Video (5 min)
• Quantum Chemistry / Physics Video

Materials Science B – Organic Chemistry

• Chem 30 -VSEPR and Hybrid Orbitals -Mat Sc B Video 1 2021
• Chem 30 – Isomers & Chirality – Mat Sc B Video 2 2021
• Chem 30 – Chiral Forms / practice drawing isomers -Mat Sc B Video 3 2021
• Chem 30 Organic naming Alkanes, Alkenes, Cyclo YouTube video   ‪2016 – 19 minutes‬ 
• Chem 30 Isomers 2016 video
• Chem 30 Functional Group intro Halocarbons video 4 2021 
• Chem 30 Halocarbons (part 2) and Alcohols Video 5 2021
• Chem 30 Ethers (Organic Chemistry) Video 6 2021
• Chemistry 30 Isomers Review 202 1
• Chemistry 30 Ethers, Amines, Aldehydes YouTube video   ‪32 minutes‬ 
• Chemistry 30 Ketones, Carboxylics AcidsYouTube video   ‪12 minutes‬
• Chemistry 30 Carboxylic Acids 2021
• Chemistry 30 Ketone song YouTube video   ‪2 minutes‬ 
• Chemistry 30 Carboxylic Acids, Esters, AmidesYouTube video   ‪27 minutes‬ 
• Chemistry 30 Organic Families songYouTube video   ‪4 minutes‬ 
• James Tour: The Origin of Life Has Not Been Explained

Reaction Rate, Rate Law, Equilibrium

Ch 17 textbook questions.

• p. 601-605 #1-7
• p. 611 #13-16
• Chemistry 30 – Rate Law (Lesson 2021)
• Chemistry 30 – Equilibrium Constant Keq video (#1of2) 2021 video
• Chemistry 30 – Equilibrium Constant Keq video #2of2
• Chemistry 30 LeChatelier’s Principle and Concentration Changes (#1of2)
• Chemistry 30 LeChatelier’s Principle – Pressure and Temperature (#2of2)
• Chemistry 30 – ICE Charts (Calculations at Equilibrium)
• Chemistry 30 – ICE Eqmb conc’s of all substances given
• ICE Chart practice question
• ICE Chart Asn’t Question #2
• ICE Chart Asn’t Question #3
• ICE Chart Asn’t Question #5

Solubility / ksp / Predicting Precipitation

Ch 17 textbook questions.

• p. 616 #20-24
• p. 619 #25-26
• p. 627 #65, 68, 70-73, 75-79, 83
• Chemistry 30 -Solubility (Full Lesson with examples and homework solutions)
• Calculating Ksp example video
• Chemistry 30 – Predicting Precipitation (2021)
• Chemistry 30 – Common Ion Effect (2021 video)
• Predicting Precipitation Practice Problem 1
• Predicting Precipitation Practice Problem 2
• Chem 30 Predicting Precipitation and ICE chart review examples

Acid / Base

• Chemistry 30 Acid/Base Intro Lesson and Questions 2021
• Chemistry 30 Naming Acids Bases, Strengths, Ka, Kb
• Chemistry 30 Kw, pH, pOH
• Chemistry 30 Ka Explanation and Calculations
• Chemistry 30 Ka calculations 2021
• Chemistry 30 Acid Base Neutralization and Titration
• Chemistry 30 Solubility, Acid Base Exam review

RedOx / Electrochemistry

Reduction / oxidation reactions.

Glencoe Text Ch 19

• Chemistry 30 Redox Intro, oxidation states
• Chemistry 30 Activity Series and RedOx
• Chemistry 30- Balancing RedOx Equations (2021)
• Chemistry 30 Balancing RedOx Equations #24b Merrill Text p.641
• Chemistry 30 Balancing RedOx Equations #25 Merrill Text p.645
• Chemistry 30 Balancing RedOx Reactions #29 p.645

Electrochemistry (Reduction Potential – Cell Diagrams)

Ch 20 Glencoe text

• Chem 30 Electrochemistry – Voltaic Cells Lesson 2022
• Chemistry 30 – Calculating Standard Cell potential – Example
• Chemistry 30 Electrochemistry – Electrolytic Cells Lesson 2022
• Standard Reduction Potentials of Half Reactions – Electrochemistry (Organic Chemistry Tour Video – 11 min)
• Voltaic / Galvanic Cells webpage
• Electrolytic Cells webpage
• James Tour – The origin of life has not been explained video

Chemistry 30 Course Review Resources

• Mr. Grainger Chem 30 Review document
• Chem 30 Review Kahoot!
• Chemistry 30 – Predicting Precipitation and ICE Chart review questions

CBSE NCERT Assignments for Class 11 Chemistry

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Posted: 12-Sep-24

Location: United States - Nationwide

Type: Part Time

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Required Education:

STANZA EDUCATION CORPORATION

Regular part-time, Monday - Friday; 

The candidate for this position will reside in, California, Arizona, Florida, Pennsylvania or Georgia.

At Stanza Education Corporation, our mission is to empower organizations to create small learning communities that cultivate future-ready students by providing personalized curriculum and instruction, streamlined processes, and innovative systems. Our transformative educational experience equips students with the knowledge, skills, and abilities necessary to excel in an ever-changing world.

How You Will Make an Impact:

The  Teacher  will plan, organize, and implement an appropriate personalized program in either an online or in-person instructional environment that guides, supports, and encourages students to develop and fulfill their academic potential, using data and technology. This Position will collaborate with other instructional staff and school personnel to support the student’s academic plan. This position reports to the Head of Schools or the designee. 

RESPONSIBILITIES/DUTIES:  This list is  illustrative only  and is not intended to be a comprehensive list of tasks performed by this classification. Reasonable accommodations may be made to enable individuals with disabilities to perform the essential functions of the job.

• Promote and support the School Mission, Vision and Core Values representing those in all interactions with families and within educational practices.
• Provide authentic, meaningful feedback on assignments via the Learning Management System (LMS) in an online or via an in-person classroom.
• Conduct virtual synchronous instructional sessions utilizing effective online learning best practices as the student needs or conduct an in-person instructional session.
• Manage the discussion board in each class to encourage participation and learning in the online classroom or in-person classroom.
• Plan, prepare for, and deliver instructional activities to facilitate learning experiences, in the assigned area, either online environment or in-person classroom.
• Welcome new students within 1 business day of enrollment with same day welcome.
• Engage students in goalsetting and progress monitoring.
• Collaborate with the Academic Coach in the assignment of appropriate courses of study with input from parents and students.
• Create and maintain an effective learning environment by modeling positive and respectful behavior while upholding and supporting high academic expectations.
• Establish and communicate learning objectives and content standards to be assessed.
• Monitor and document student’s progress and communication with student in the Student Information System (SIS).
• Implement effective interventions to ensure student success.
• Provide communication to students and parents at a minimum on a weekly basis via phone, text, email, and/or other electronic means.
• Accept, carefully review, and evaluate coursework within 12 - 24 hours of submission.
• Administer, proctor, grade tests and award test scores, providing feedback and retries to promote mastery-based learning.
• Provide availability during the school’s operating hours with scheduled office hours.
• Maintain student records in compliance with administration’s requirements.
• Work independently and efficiently, exercising reasonable judgment, in a fast-paced, multi-task environment.
• Perform administrative duties, responsibilities, and activities as assigned. These may be changed or modified from time to time.  

KNOWLEDGE, SKILLS, ABILITIES:

• Knowledge in a variety of educational programs, specifically focused on private schools.
• Ability to learn Student Information and Learning Management Systems.
• Ability to motivate students and parents toward achieving good academic standing.
• Ability to work with culturally diverse student populations.
• Ability to handle, analyze, reason, and resolve problems.
• Ability to keep and maintain accurate and detailed reports.
• Ability to understand and follow directions.
• Ability to multi-task, work under pressure and meet deadlines.
• Ability to exercise good judgment in setting task priorities.
• Ability to work independently while collaborating with a team.
• Ability to maintain professionalism and confidentiality.
• Strong verbal and written communication skills.
• Excellent attention to detail, strong time management and organizational skills.
• Self-sufficient and committed on excellent customer service. 

MINIMUM QUALIFICATIONS:

• Valid State Teaching Credential is preferred, but not required.
• Teaching experience required; Experience teaching in an online learning environment is preferred.
• This is a remote or in-person position, residing in either Florida, Georgia, Pennsylvania, Arizona, or California as required.
• Strong technology skills (Intermediate or Advanced, or Expert skills in MS Office (Word, Excel, PowerPoint, Outlook) and Google Apps is preferred.
• Able to work in a rapidly growing and changing environment.
• Strong customer service-focused approach with a commitment to student achievement.
• Ability to lift, carry, push, pull objects weighing up to 10 pounds.

PHYSICAL REQUIREMENTS:

• Mental Demands: high workflow management, high project coordination, and high people engagement.
• Finger Dexterity: primarily using the fingers to make small movements such as typing, picking up small objects, or pinching fingers together.
• Talking: especially where one must convey detailed or important instructions or ideas accurately, loudly, or quickly
• Average Hearing: hearing average or typical conversations and receiving ordinary information.
• Average Visual Abilities: normal acuity necessary to prepare or inspect documents and operate office equipment or machinery.
• Frequent multi-tasking, changing of task priorities, repetitious exacting work required.
• Prolonged period sitting at a desk and working on a computer.