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CH07 – Moles

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Dates

  • P1 – Thursday, January 26th
  • P3 – Wednesday, January 25th
  • P5 – Friday, January 27th

Demo Recap – Did we have any fun?

  • Produce a video that is less than 2 minutes in length
  • speed-up / slow-down the recording (if necessary) to easily view “the chemistry”
  • Overlay text that instructs the viewer on the chemistry of the demo
  • Overlay with graphics (if necessary) to emphasize important parts of the demo
  • Note: include names / class period in text
  • It is OK to add a soundtrack / voice-over to add creative emphasis
  • All videos are uploaded to a Castilleja YouTube account with public viewing access
  • Post VideoLink to “Chemistry Honors” Schoology Group [LINK]
  • Include student names and course period in Schoology post

Homework Review

  • Unit practice
  • Questions?

Quiz

  • Quiz next class
  • <syllabus for more details>
  • Q1 = sig figures calculations
  • Q2 = units conversion
  • Quick quiz!
  • Know these prefixes: Mega, kilo, centi, milli, micro, nano

New Idea!

New Material – Moles

  • If I have ONE MOLE of a substance then I have a mass of that substance equal to the mass shown on the periodic table
  • This is called: MOLAR MASS
  • <molar mas is the mass of ONE mole>
  • Example – one mole of cargbon atoms = 12.01 grams

How do we use this?

  • Determine the mass of one mole of each of the following: aluminum, water, carbon dioxide
  • Determine the number of atoms in a 25.3-gram sample of helium
  • UNITS UNITS UNITS
  • PROCESS PROCESS PROCESS

Homework

  • Ch. 3 (52, 54, 56)
  • SHOW EACH BLANK AS A SEPARATE PROBLEM

 

Information

This entry was posted on January 24, 2017 by in CH1617 and tagged , , , , .
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