Question

How many micrograms of iron were in the 8.0 mL sample of Greg's blood?

Given: 42 mcg of iron per 1 deciliter of blood.
Please write the steps to your conversions.

Answer 1

To find the micrograms of iron in the 8.0 mL blood sample, convert the volume to deciliters and multiply by the iron content per deciliter. The sample contains 3.36 micrograms of iron.

Step-by-step explanation:

To determine how many micrograms of iron were in the 8.0 mL sample of Greg's blood, when you're given that there are 42 mcg of iron per 1 deciliter of blood:

1. First, convert milliliters to deciliters. Since there are 100 milliliters in 1 deciliter, 8.0 mL is equivalent to 0.08 dL.
2. Next, use the given ratio of micrograms of iron per deciliter to calculate the amount of iron in the given volume of blood. Multiply the volume of the blood sample in deciliters by the amount of iron per deciliter:

0.08 dL × 42 mcg/dL = 3.36 mcg

Therefore, the 8.0 mL blood sample contains 3.36 micrograms of iron.

Answer 2

Answer is: there is 3,36 micrograms of iron in sample of Greg's blood.
m(Fe) = 42 mcg(micrograms).
V(Fe) = 1 dL = 1 dL · 100 mL/1dL.
V(Fe) = 100 mL.
Make proportion: m(Fe) : 8 mL = 42 mcg : 100 mL.
100 mL · m(Fe) = 8 mL · 42 mcg.
m(Fe) = 336 mL·mcg ÷ 100 mL.
m(Fe) = 3,36 mcg.