Question

the white blood cell concentration in normal blood is approximately 12,00 cells/mm^3. How many white blood cells does a normal adult with 5L of blood have? Express the answer in scientific notation.

Answer 1

A mm^3 is NOT a liter ... a dm^3 is a liter.

(12,000 cells / mm^3) x (100 mm / dm)^3 = (12,000 x (100)^3 cells / dm^3) = 1.2 x 10^10 cells / L

That x 5 L = 6.0 x 10^10 cells

Answer 2

@imsmartygofygirl66 mm^3 is correct in the question! It is the unit of measure.
Yes to do this problem we will need to change between liters and milliliters
1000mm = 1L
now try again.