Math Section

Question 1

How would you write down a
98 colonies that’s 10^-6 dilutatopn?

Answer 1

98 X 10^6 or 9.8 X 10^7

Question 2

How would you write down 38 colonies with a plate of 10^-6 diluation?

Answer 2

38x10^6 or 3.8x10^7

Question 3

What is the formula we need to know for dilution?

Answer 3

Dilution = volume/ ( volume of sample + diluent )

Question 4

What are we going to be looking for when using that formula?

Answer 4

The diluent

Question 5

What are the steps for the formula?

Answer 5

1. 1/10 = Volume of sample / ( volume of sample + X )
2. Multiply 10 X volume of sample
3. Whatever that equals to, you’ll put it first and then subtract it with couple of sample
   X - volume of sample
4. mL diluent

Question 6

Example of the formula
1/10 = 0.6 / ( 0.6 + X )
?

Answer 6

10x0.6 = 6
6-0.6 =
5.4 diluent