Below, you can practice a couple more times. Also included are a few unusual situations … things do go wrong, of course, and you should be able to recognize that. If you think the dilution series is not valid, click on “re-do the dilution”. Lastly, “TMTC” means “too many to count”.
|
dilution factor
|
1:100,000
|
1:1,000,000
|
1:10,000,000
|
1:100,000,000
|
Re-do dilutions? |
|
count
|
TMTC
|
674
|
68
|
7
|
|
|
answer
|
|
dilution factor
|
1:100,000
|
1:1,000,000
|
1:10,000,000
|
1:100,000,000
|
Re-do dilutions? |
|
count
|
375
|
105
|
11
|
1
|
|
|
answer
|
|
dilution factor
|
1:100
|
1:1000
|
1:10,000
|
1:100,000
|
Re-do dilutions? |
|
count
|
TMTC
|
249
|
24
|
0
|
|
|
answer
|
|
dilution factor
|
1:10
|
1:100
|
1:1000
|
1:10,000
|
Re-do dilutions? |
|
count
|
954
|
96
|
10
|
0
|
|
|
answer
|
|
|
|
dilution factor
|
1:10,000
|
1:100,000
|
1:1,000,000
|
1:10,000,000
|
1:100,000,000
|
Re-do dilutions? |
|
count
|
TMTC
|
567
|
58
|
12
|
1
|
|
|
answer
|