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Wednesday, November 21, 2007

Wed Nov 21

SCH 3U Period 1
Lab Cont'd
Lab Q 1-4 due tomorrow

SNC 1P
Reproduction
2 Worksheets
Read p. 214-215
Copy Figure 1 p. 216
Read p. 216-217
Q 1,2,3 p. 217
Pregnancy Timeline assigned - due Friday

SCH 3U Period 4
Units of Concentration
Q 1-18 p. 305 -313 (Q 2-4, 6-9 optional) - due Thursday
Worksheet - due Friday

5 comments:

asn said...
This comment has been removed by the author.
asn said...

ms nobody in the class had the same amount of volume as me and my partner had. so how i will do Q: 3 on page 297. Also ms can you explain Q: 3 i didnot undersatnd.

asn said...
This comment has been removed by the author.
>. said...

Ms. on worksheet that you gave to us # 6 says "average concentration of 18.9 mg/kg". What does mg/kg means? That there is 18.9 miligrams in one kilogram of PCBs?

Thanks.

MsWiens said...

The only volume that has only one value is 35mL, the rest, were duplicated by several people.

The volumes are 10, 15, 20, 25, 30, 35 and you have all the temperatures. Read the question carefully, do it one step at at time. There are several parts to question 3.

18.9 mg.kg means that there is 18.9 mg of PCB per kg of mass (in this case, per kg of bird)