Chemistry 11 – 2022/2023

Welcome to Chemistry 11

We will be using the LMS CANVAS. You will receive an invitation from your teacher to join your CANVAS Chemistry 11 class. You will be accepting the course invitation via Burnaby Online – make sure that you are on the Burnaby Online page, not the SFU CANVAS page.

Please follow the following steps to join CANVAS

1. Accept the invitation to join your CANVAS course. If you have never used CANVAS you will be redirected to the Burnaby Online page to create an account. Your CANVAS username is the same as your username for your Office 365 Outlook account. You will need to create a new password. If you have an existing account with CANVAS you will accept the course invitation and be directed to the Chemistry 11 homepage.

Welcome to Chemistry 12 – 1st Semester – September 7, 2021

Welcome to your first semester Chemistry 12 Class.  

I look forward to teaching and working with you!

Chemistry 12 is a fast-paced course that investigates the equilibrium behaviour of solutions of salts, acids, and bases.  In addition, you will learn more about collision theory and electrochemistry.

Get ready for class by organizing the following school supplies.

1.  Have a basic scientific calculator that has log and exponent buttons. Chem 12 is a math-intensive course.  You will need to do basic algebra to answer chemistry 12 questions.

2. Complete the following Chemistry 11 Review _ this was handed out in class on the first day of class (Sept. 8, 2021).

3. Total Chem 11 Review Key

4. Complete the following Chemistry 11 Review:  Total Chem Review (Student Copy) with answers.

5. Print off a copy of the Chemistry 12 Data Booklet.  You will have to use the Data Booklet to find relevant information.  This Chart Reading Skill (CRS) is an important science literacy skill. 

Learn more about how to use Canvas your new Spring 2020 Learning System

You have been sent an invite to join your Chemistry class.  

The canvas log in screen looks like this:

This is what the canvas log in looks like. Your password is the same as the computer login for school computers.

You will have to log in using your user name and password (see the information from our school’s web page.  You will note that the login steps are the same as how you log into your Microsoft 365 account (same username and same password). 

Please use the following learning guides to get to know canvas better:

 

Learn more about pandemic math and the science of soap – how do things go viral?

The science of soap – here’s how it kills the coronavirus

Viruses can be active outside the body for hours, even days. Disinfectants, liquids, wipes, gels, and creams containing alcohol are all useful at getting rid of them – but they are not quite as good as normal soap.

 

The slightly longer story is that most viruses consist of three key building blocks: ribonucleic acid (RNA), proteins and lipids. A virus-infected cell makes lots of these building blocks, which then spontaneously self-assemble to form the virus. Critically, there are no strong covalent bonds holding these units together, which means you do not necessarily need harsh chemicals to split those units apart. When an infected cell dies, all these new viruses escape and go on to infect other cells. Some end up also in the airways of lungs.

 

Ocean Acidification caused by increased levels of atmospheric carbon dioxide are causing a decline in crab survival

A recent study has highlighted how increasing ocean pH levels have caused crab populations to suffer.  

Study Highlights include the following: 

•Coastal habitats with the steepest ocean acidification gradients are most detrimental for larval Dungeness crabs.

•Severe carapace dissolution was observed in larval Dungeness crabs along the US west coast.

•Mechanoreceptors with important sensory and behavioral functions were destabilized.

Sensory organ damage seen for the first time

In a surprising discovery, the team found that the low pH water in some coastal areas damaged the canals where hair-like bristles called mechanoreceptors stick out from the shell. These receptors transmit important chemical and mechanical sensations to the crab, and may help crabs navigate their environment. Examination showed that carapace dissolution destabilizes the attachment of the mechanoreceptor anchor, resulting in them falling out in some individuals.

•Dissolution is negatively related to the growth, demonstrating energetic trade-offs.

•10% dissolution increase over the last two decades estimated due to atmospheric CO₂.

What is ocean acidification?

Ocean acidification refers to a reduction in the pH of ocean water, primarily caused by the uptake of carbon dioxide from the atmosphere over long time spans. When CO2 is absorbed by seawater, a series of chemical reactions occur resulting in the increased concentration of hydrogen ions. This increase causes the seawater to increase its acidity and causes carbonate ions to be less abundant.

Carbonate ions are an important building block of structures such as seashells and coral skeletons that rely on using calcium carbonate for structural growth. Decreases in carbonate ions can make building and maintaining shells and other calcium carbonate structures difficult for calcifying organisms such as oysters, clams, sea urchins, crabs, corals, and some kinds of shelled plankton, such as pteropods.

 

Space X Crew Dragon Launch Escape Demonstration

The purpose of this test was to demonstrate the effectiveness of the Space X Launch Escape System.  Normally is a rocket blows up space engineers are sad.  In this case, the explosion was part of the test.  The launch escape system was a success.  There were two flight dummies onboard equipped with a range of sensors.  These sensors are being analyzed to determine the amount of force a space crew would experience.  

 

Canadian Center for Electron Microscopy constructs the worlds smallest gingerbread house – learn more about CCEM

A researcher at the Canadian Center for Electron Microscopy (CCEM) has designed the world’s smallest gingerbread house with tungsten.

Learn how the gingerbread house was built:

Learn more about how ion beam microscopes create images:

Focussed Ion Beam Milling and Scanning Electron Microscopy of Brain Tissue

Learn more about the difference a single proton can make: the chemistry of vaping

Learn more about the chemistry of vaping:

 

 

 

Learn more about how ammonia is liberated when compounds are heated:

Chemistry Advent Calendar – Get Ready to Celebrate the Winter Vacation!

Learn more about the International Year of the Periodic Table by Celebrating

The United Nations announced 2019 as the International Year of the Periodic Table of the Chemical Elements to highlight its first publication in 1869. The periodic table as we know it today was first designed by the Russian scientist Dmitri Ivanovich Mendeleev.

 

 

 

 

 

 

 

 

Day 1:  Day 1 of this year’s #ChemistryAdvent features a periodic table which summarises the when, where and who of element discovery.

Summary Time: Collision Theory, reaction rates and Keq