How many micrograms of iron were in the 6.5-mL sample of Greg's blood? Express your answer using two significant figures.
The concentration of iron in Greg's blood is not provided in the question. Therefore, it is not possible to determine the number of micrograms of iron in the 6.5-mL sample without additional information.
To determine the number of micrograms of iron in the 6.5 mL sample of Greg's blood, we need to provide additional information such as the concentration of iron in his blood. Without this information, we cannot accurately calculate the amount of iron. Please provide the concentration of iron in Greg's blood, and I will be able to help you with the calculation.
To find the number of micrograms of iron in the 6.5 mL sample of Greg's blood, we need to know the concentration of iron in his blood. This information is typically measured in units of micrograms per milliliter (μg/mL). If we have this concentration, we can multiply it by the volume of the sample to determine the amount of iron present.
Since the concentration of iron is not provided in the question, we cannot directly calculate the number of micrograms of iron in the 6.5 mL sample. If you have access to additional information, such as the concentration of iron in Greg's blood, please provide it so that we can proceed with the calculation.