What are we doing today
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What Are We Doing Today?. QOD Continuing with the Mole & some notes Video on Mole Practice Problems Get back assignment Away Thur/Fri, but you are still responsible. The Mole. Q: how long would it take to spend a mole of $1 coins if they were being spent at a rate of 1 billion per second?.

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What Are We Doing Today?

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What are we doing today

What Are We Doing Today?

  • QOD

  • Continuing with the Mole & some notes

  • Video on Mole

  • Practice Problems

  • Get back assignment

  • Away Thur/Fri, but you are still responsible


The mole

The Mole

Q: how long would it take to spend a mole of $1 coins if they were being spent at a rate of 1 billion per second?


Mollionaire

Mollionaire

Q: how long would it take to spend a mole of $1 coins if they were being spent at a rate of 1 billion per second?

A: $ 6.02 x 1023 / $1 000 000 000

= 6.02 x 1014 payments = 6.02 x 1014 seconds

6.02 x 1014 seconds / 60 = 1.003 x 1013 minutes

1.003 x 1013 minutes / 60 = 1.672 x 1011 hours

1.672 x 1011 hours / 24 = 6.968 x 109 days

6.968 x 109 days / 365.25 = 1.908 x 107 years

A: It would take 19 million years


What are we doing today

Quiz

  • Make sure to sit away from anyone else

  • You need a pencil or pen

  • Close your books & notes

  • Make sure you put your name on the quiz

  • When you are finished, put your hand up and I will come and collect your quiz.


Recycling jobs

Recycling Jobs

How did they go? Any problems?


Apes explained

APES (explained)


Atomic models what is the difference

Atomic Models…(What is the difference)

  • Ball & Stick

  • Lewis Structure

  • Rutherford-Bohr

  • Simplified


Ball stick model

Ball & Stick Model

Draw the ball & stick model for Carbon


Lewis structure draw the lewis model for carbon

Lewis Structure Draw the Lewis model for Carbon


Rutherford bohr model draw the ruth bohr model for carbon

Rutherford-Bohr Model Draw the Ruth-Bohr model for Carbon


Simplified model p 28 draw the simplified model for carbon

Simplified Model p.28 Draw the Simplified model for Carbon


Isotopes what are they

ISOTOPES. What are they?

They are different versions of an atom.

Isotopes are atoms which have the same atomic number but different mass numbers. They have the same number of protons but different numbers of neutrons.


What are we doing today

  • The number of neutrons in an atom can vary within small limits. For example, there are three kinds of carbon atom 12C, 13C and 14C. They all have the same number of protons, but the number of neutrons varies.


Lemon car example

Lemon Car Example

Lemona GTX

-CD player

-Brown Car

Lemona GT

-MP3 Player

-Blue Car

Lemona S

-Red Car

-Sunroof


Isotopes what can we use them for

ISOTOPES. What can we use them for?

Video:

https://www.youtube.com/watch?v=54e5Bz7m3do


Metals non metals lab

Metals & Non Metals Lab

  • Lab tomorrow (Thursday)

  • What to do before the lab (questions, prep)

  • What to do in the lab (safety, partner)

  • What to do after the lab is over (clean up, finish questions, hand in)

  • Lab (prelab + prelab quiz)


Pop quiz review

Pop Quiz Review

  • Close your books

  • No helping

  • I will ask random people

    Good luck 


What to do now

What to do now?

  • Work on prelab for tomorrow


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