Question

: A patient's blood test shows that her hemoglobin concentration is 15.5 g/dL. How many milligrams of hemoglobin are in every 4.50 mL of the patient's blood? mass of hemoglobin = ___ mg

Answer 1

Step-by-step explanation:

The hemoglobin concentration is given in grams per deciliter (g/dL), and we want to find the mass of hemoglobin in milligrams (mg) per milliliter (mL) of blood.

To convert g/dL to mg/mL, we can use the following conversion factors:

1 g = 1000 mg (since "milli" means one-thousandth)

1 dL = 100 mL (since "deci" means one-tenth)

Therefore, 1 g/dL = (1000 mg/1 g) / (100 mL/1 dL) = 10 mg/mL.

So, to find the mass of hemoglobin in 4.50 mL of the patient's blood, we can multiply the hemoglobin concentration by the volume of blood:

mass of hemoglobin = (15.5 g/dL) x (10 mg/mL) x (4.50 mL) = 697.5 mg

Therefore, there are 697.5 milligrams of hemoglobin in every 4.50 mL of the patient's blood.