If 1g of fully saturated haemoglobin is combined with 1.3 cm^3 of oxygen, how much oxygen will 1g of haemoglobin in the capillaries in the lungs be combined with?
Partial pressure of oxygen in the alveoli in the lungs is 12 KPa.
Percentage saturation of haemoglobin in the capillaries in the lungs is 96.5%.
Please help.

Question

If 1g of fully saturated haemoglobin is combined with 1.3 cm^3 of oxygen, how much oxygen will 1g of haemoglobin in the capillaries in the lungs be combined with?
Partial pressure of oxygen in the alveoli in the lungs is 12 KPa. 
Percentage saturation of haemoglobin in the capillaries in the lungs is 96.5%. 
Please help.

aaronq · Answer

What was the partial pressure of $O_2$ when hemoglobin combined with the 1.3 mL?

sheerfire · Answer

It did not say

aaronq · Answer

I guess with the info given you can just use a ratio, assuming that "fully saturated" means 100%. So, $\sf \dfrac{1.3cm^3}{100\%}=\dfrac{V_{capillaries}}{86.5\%}$

aaronq · Answer

that 86.5% should've been 96.5%

sheerfire · Answer

Yeah that's the answer. Thank you☺