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# sillybee Offline

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Last Activity 3 days ago

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1. Poolwizard
11-03-2013
anyway
- this is all copy and paste from before..

the isa was alright...

anyway.. from what i remember

SECTION A

1. using results from practical, calculate 1000/t and record it in the table (in the paper)

simple

2. draw a graph of it, with 1000/t in Y axis, and conc. of na2s2o3.

simple

3. draw a line of best fit

i did straight line

4. using your graph, "find" the conc. of na2s2o3 at concs of 0.05 a 0.10

use ruler, measure down

5. define : rate of reaction. explain why using 1000/t can measure rate of reaction

conc of sub/time 1000/t 1000 is conc..???

6. " doubling conc doubles rate of reaction" explain whether you think your results from Q4 are good enough. -- this question, i wa like.. "strange wording.." "good enough" - lol

use your results e.g. at 0.05, and 0.10, was 0.10 double of 0,05? use the other restuls from the table at the start

7. trying to remember this one...**** ///

8. maximum percentage error

1+1/1000? something like that

9. trying to remmber this one... *** i think i won't get them... (7/9 ///

SECTION B

10. "graph given of conc of acid v rate of reaction" Explain why the line graph is not straight " curve is exponential (?)"

11. why does magnesium (ribbons) need to be cleaned when it ha been stored outside in the air

mgwhatever (so4/oh2) forms, which is insoluble..

12. magnesium ribbons react with hot water. heated magnesium ribbons react with steam outline 2 differences between them.
2. Bhudsz
10-03-2013
what school/college dyu go to?
3. ghanglish
30-01-2011
Well thank you

Name
Sylvia
Where I study
At school
Star Sign
Capricorn
the internet doesnt have enough space for my autobiography. give me the world and i'll tell u everything.
i'm a very good girl but i hate figures of authority.
Interests
writing,
dancing,
watching movies

#### General Information

• Last Activity 3 days ago
• Join Date 26-01-2011

Join Date 26-01-2011

Total Posts 51

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