Question

What will make when cabon and hemoglobin mix

Answer 1

Carbon Monoxide has a much greater affinity for the hemoglobin molecules than does oxygen. It has been calculated to have an affinity 250X greater then oxygen. This is why people who smoke large amounts of cigarettes have a constant reduction in their spo2 level. Normal is 95% to 98%. These heavy smokers have a carbon monoxide percentage that I have seen at 7% leaving the oxygen saturation at 93%. Lower then normal.
When people pulled from a fire scene have CO saturation of 20% they usually die, because of their much lower oxygen levels. Also it cannot just be replaced by supplying extra oxygen. Remember that carbon monoxide was 250 times more likely to occupy a hemoglobin molecule than is oxygen. So it requires hours, and even days of breathing high levels of oxygen to recover, if at all.

Answer 2

Carbon dioxide combines readily with haemoglobin to form a carbamino bond at a lower partial pressure than oxygen, but haemoglobin carries less than a quarter of the amount of carbon dioxide compared with oxygen.