First, let's convert 5.5 L to milliliters to cancel correctly when we use the formula. Remember that 1 liter equals 1000 mL:

Now that we have this value, we can find the mass using the formula:

And replace the data that we have:

But we need to give the answer in kg, so remember that 1 kg equals 1000 g. The conversion from 5830 g to kg would be:

The answer is that the mass of blood is 5.83 kg in 5.5 L.