Blood has a density of 1.06 she donates 473.176 ml how much mass does she donate

Density = mass / volume

So..

1.06 = mass / 473.176

Multiply 473.176 over to the other side leading to

(1.06)(473.176) = mass

mass = 501.56656 --> 501.57

in simple terms, the principle states that the buoyancy force on an object is equal to the weight of the fluid displaced by the object, or the density of the fluid multiplied by the submerged volume times the gravitational acceleration, g. this is also known as upthrust.

this is a good question! i'll do some research and come back when i have the answer!