Question

You are given 2mL of concentrated bacterial stock. Using the formula V_(1)D_(1)=V_(2)D_(2), how much broth would you need to add to the entire 2mL to make a 1:10 dilution.

Answer 1

The formula V1D1=V2D2 is used to calculate dilution problems. In this case, you have a concentrated bacterial stock of 2mL and you want to make a 1:10 dilution. To find the amount of broth needed, you can rearrange the formula to solve for V2. Substitute the values and solve for V2 to find that you would need to add 18mL of broth to the 2mL stock solution to make a 1:10 dilution.

Step-by-step explanation:

The formula V1D1=V2D2 is used to calculate dilution problems. In this case, you have a concentrated bacterial stock of 2mL and you want to make a 1:10 dilution. To find the amount of broth needed, you can rearrange the formula to solve for V2. Substitute the values and solve for V2 to find that you would need to add 18mL of broth to the 2mL stock solution to make a 1:10 dilution.