Your SlideShare is downloading. ×
Chem I Day IV
Upcoming SlideShare
Loading in...5
×

Thanks for flagging this SlideShare!

Oops! An error has occurred.

×

Saving this for later?

Get the SlideShare app to save on your phone or tablet. Read anywhere, anytime - even offline.

Text the download link to your phone

Standard text messaging rates apply

Chem I Day IV

527
views

Published on

Published in: Technology, Business

0 Comments
0 Likes
Statistics
Notes
  • Be the first to comment

  • Be the first to like this

No Downloads
Views
Total Views
527
On Slideshare
0
From Embeds
0
Number of Embeds
1
Actions
Shares
0
Downloads
0
Comments
0
Likes
0
Embeds 0
No embeds

Report content
Flagged as inappropriate Flag as inappropriate
Flag as inappropriate

Select your reason for flagging this presentation as inappropriate.

Cancel
No notes for slide

Transcript

  • 1. Welcome Chemistry I – Day 4 Portland Evening Scholars Mr. Treothe Bullock - Instructor  Introduction to Chemistry – Unit 1 Exam  Review of Objectives  Exam  Candle Lab & Accuracy vs. Precision Labs Due  SI metric conversions Practice & Lab  First page of conversions out and ready to be signed  2nd & 3rd page will be for proficiency  Science Math Marathon  Exponents  Scientific Notation  Significant Figures  Dimensional Analysis  Chemistry Paper – Writing Lab – last 45 min  Element Reports – share – you will need info from multiple families and countries of origin (discovery)  Template on Website  bullockchem.wordpress.com
  • 2. Homework     Complete Chemistry Math Practice Complete Chapter 2 Review Complete Write up of Water Density Lab Complete Rough Draft of Unknown Inquiry Write up  Include Class Data and % error calculations
  • 3. Element Notes        Set up section in your binder to take notes during Element reports. Take notes on the following. Name & Symbol Elemental Family When, where and by whom was it discovered. Where is it most commonly found. How it is used. Anything else you think is important to know.
  • 4. Density of Unknown Metal Your Name Density of Metal  Add your name and density for the unknown metal  Calculate an average density for the class  As soon as all data is in density for common metals will be given and you will predict the metal.
  • 5. Density of Common Metals Based on class Data which metal could our unknown be? metal g/cm3 lb/gal lb/in water 1.00 0.036 62 Aluminum 2.70 0.098 169 zinc 7.13 0.258 445 iron 7.87 0.284 491 copper 8.96 0.324 559 silver 10.49 0.379 655 lead 11.36 0.410 709 Mercury 13.55 0.490 846 gold 19.32 0.698 1206 lb/ft 8.35 22.53 59.50 65.68 74.78 87.54 94.80 113.08 161.23
  • 6. Calculate Your percentage error for the unknown metal Density Accepted value – Actual value  ________________________ X 100 = PercentError  Accepted Value  Sample for Water – Accepted 1.00g/ml Experimental 0.98 g/ml  1.00 g/ml - 0.98 g/ml /1.00 g/ml x 100 = 2% error
  • 7. Calculate Your percentage error for the unknown metal Density Accepted value – Actual value  ________________________ X 100 = PercentError  Accepted Value  Sample for Water – Accepted 1.00g/ml Experimental 0.98 g/ml  1.00 g/ml - 0.98 g/ml /1.00 g/ml x 100 = 2% error